Organocide® Plant Doctor® is an earth-friendly broad spectrum disease control and preventative for use on turf, fruit trees, vegetables, ornamentals and flowers. Prevents and cures a myriad of plant diseases, including those that cause downy mildew, root rot, leaf and stem blights, leaf spots and many others! A systemic product, it has a foliar or root application that will work its way throughout the entire plant to prevent disease and attack existing disease above and below ground. Once inside the plant, Plant Doctor® increases plant metabolism so plants grow faster, bloom more and have an increased yield while providing a nutritional boost of potassium and phosphorous, essential nutrients for plant growth.
If you have any further questions about this or any of our other products, please be sure to drop us a note in our “Contact Us” area. We’re happy to reply…you’re the reason we’re here!
Here are your FAQs:
How is a systemic fungicide different from other fungicides?
- A systemic fungicide can be sprayed directly on the foliage or applied to the root zone.
- After initial application, a systemic product will rapidly absorb and then work throughout the entire plant. Other fungicides are contact fungicides: the product must make direct contact with the disease area in order to effectively treat the disease.
What diseases will PLANT DOCTOR control?
- PLANT DOCTOR is very broad-spectrum and controls most diseases like anthracnose, black spot, stem blight, rust, downy mildew, phytophthora (root rot) and pythium.
Will PLANT DOCTOR prevent downy mildew on impatiens?
- Yes, Penn State University has concluded that Plant Doctor is effective to prevent downy mildew in impatiens. http://extension.psu.edu/cumberland/news/2013/a-new-challenge-for-growing-flowers-in-the-shade
What makes PLANT DOCTOR so unique?
- PLANT DOCTOR is both a preventative and curative.
- It will control pythium & phytophthora (root rot) as well as powdery mildew (foliar disease).
- After 14-21 days, it converts into nutritional potassium and phosphorus, that the plant consumes as nutrients and nothing is left in the ground.
- It is also a bio-stimulant; once inside the plant, it stimulates the plant’s metabolism resulting in more plant vigor, increase bloom and crop yield, and increasing stress resistance.
- The active ingredients have been used for years in commercial growing and agri-business markets with great success.
How does it work?
- By stimulating the metabolism and plant vigor to such a high degree the plant staves off and overcomes disease.
- Pathogens such as phytophora cannot process the active ingredient in Plant Doctor, though they will attempt to process it as a nutrient. This effect shuts down the pathogens’ cells, terminating the disease.
Can I use PLANT DOCTOR to soil drench my pear tree that has fire blight?
- Mix 3 oz of Plant Doctor per 25 gal of water and apply to a 10 x 10 ft area around the root zone of the tree, followed by irrigation to move the Plant Doctor into the root zone..
What about environmental impact?
- PLANT DOCTOR is an EPA registered fungicide with minimal impact on the environment and low risk to user and non target organisms, it is beneficial and nutritional to plants.
- Re-entry time is as soon as spray has dried upon the leaves, however, if you are treating a fungus we recommend you allow the product to work thru the plant to ensure remedy.
Can Plant Doctor be used with fertilizers?
- You can add nutrients along with Plant Doctor in the following order.
- 1. Fill your container half full of water and add the other nutrients – mix well.
- 2. Add the Plant Doctor – mix well.
Can Plant Dr be tanked mixed?
- The product should NOT be tank mixed with most adjuvants, surfactants, stickers, or copper compounds. A compatibility test should first be conducted for fertilizers and other products before tank mixing.
Can Plant Dr be mixed with copper?
- Unfortunately Plant Doctor and Copper compounds are not compatible. When spraying before or after copper compounds an interval of 10 or more days between applications is recommended. Do not spray Plant Doctor if there are obvious copper residues present.
- Plant Doctor mixed with Pentra-Bark surfactant is the only approved combination for control of Sudden Oak Death.
How long does the product stay in the plant?
- The product will stay for as much as 7-10 days depending on the plant treated, time of application prior to rain (the product needs at least 2 hours to get into the plant).
When is it the safest time to eat the fruits after application?
- Phosphoric acid (also contain in Coca Cola), will be the only residue on fruits treated with Plant Doctor systemic fungicide. Then when used this product for post-harvest treatment, what is recommended is just wash the fruits with enough water for a couple of minutes.
Can you mix plant doctor into compost tea?
- You can, but it would be best to avoid a direct recommendation.
How is it available?
- Quart concentrate & Pint concentrate
Plant Doctor Application for Medical Marijuana:
PLEASE NOTE – we have not personally tested on medical marijuana, however, these are the recommendations we’ve received from growers, so you may follow application directions at your own risk.
Downy / Powdery Mildew:
Foliar Application:
- • Cure Mildew: 1-2 TBSP per gallon weekly for mildew until clear then prevention.
- • Prevention: 1/2 tsp per gallon weekly
Soil Drench:
- • Cure Mildew: 3 tsp per gallon weekly for 3 weeks or until mildew clears. Must be used separately in reservoir for 1 day (no other nutrients), because plant doctor will increase PPM and EC (electrical conductivity) of water. Drain reservoir and continue with normal feeding program.
- • Prevention: 1/2 tsp per gallon weekly
Fusarium:
Soil Drench:
- • 3½ tsp per gallon weekly for 3 weeks or until it clears then prevention ½ tsp per gallon weekly.
- • Must be used separately in reservoir for 1 day (no other nutrients), because plant doctor will increase PPM and EC (electrical conductivity) of water.
- • Drain reservoir and continue with normal feeding program.
Plant Doctor will not harm beneficial bacteria or mycorrhizae fungi. It is formulated to target only pathogenic fungi.
Can plant doctor be used when using Epson salts?
Hello Anthony!
Yes, you can use Plant Doctor and Epsom Salt simultaneously.
Thank you!
1. Exactly how many days after spraying cucumbers, squash and tomatoes before I can harvest the vegetables?
2. Once the spray dries is it toxic to handle the vegetables with bare hands?
Hi Patty! Thanks for your question.
Because our product is made of food-grade oils, plants can be harvested right after spraying. Our products are very mild on skin, so there is nothing toxic about it.
I hope this helps!
Is the systemic fungicide safe for pets to walk around and chew on the leaves after treatment? Thanks.
Hi Simon! Thanks for your question.
All of our products are very safe to use around pets. We recommend that you wait until the product had dried 3-4 hours before letting your pet outside around the product, only because your plants will get better effects that way. If your pet happens to eat/drink any of the product, just make sure he/she is not allergic to any of the ingredients. Be sure to give them water and watch for any adverse reactions they may have due to allergies.
I hope this helps!
I would like to try Plant Doctor as a soil drench around roses. My understanding is that it will kill “bad” fungus as well as “good” fungus (I am especially concerned about mycorrhizal fungi, which is important for the health of rose roots). Is it possible to reintroduce “good” fungi into the soil after using Plant Doctor, having rid the soil of “bad” fungi? If so, how?
Hi again, Rachel!
Our Plant Doctor is pretty special because it actually won’t kill the fungi at all. It works so well because it makes the plant stronger to ward off any bad fungi. So any good bacteria found in the plant will be unharmed and you will have strong, healthy plants that take care of themselves!
I hope this helps!
I have a mature mulberry tree that has a disease. The leaves develop black spots and some turn yellow and fall off. I have sprayed with fungicide with a backpack sprayer. This has not proven efficient or effective. Is there a treatment that can be applied at the base and roots?
Hi Gerald! Thanks for your question. Just to make sure, are you using 2-6 tsp of the Plant Doctor per gallon of water?
There is a soil drench option if the foliar application is not working. Mix 3oz of Plant Doctor per 25 gallons of water, and apply it to a 10x10ft area around the root zone of the tree. Follow it with irrigation to make sure it reaches the root zone.
I hope this helps!
Thank you!
Where can I get SDS information on this?
Hi Justin!
The SDS for our products can be found on our website. Here is the link to the Plant Doctor.
https://www.yourplantdoctor.com/wp-content/uploads/2018/03/Plant-DoctorREV1.2.pdf
Have a great day! Thanks!
Can I use It in orchids?
Hi Blanca! Thanks for your question.
As you may know, orchids are very sensitive to anything. Though our product is natural, you may want to try it on a small area of the plant first, just to make sure it doesn’t have any diverse reaction to it.
Thank you!
Hi-I want to use the Plant Doctor as a soil drench. Can I add the Plant Doctor to my water and nutrients or cal/mag when I feed my plants or do I have to use it by itself with only water?
Gino,
You can add nutrients along with Plant Doctor in the following order.
1. Fill your container half full of water and add the other nutrients – mix well.
2. Add the Plant Doctor – mix well.
A compatibility test should first be conducted. Do not mix with adjuvants, surfactants, stickers, or copper compounds.
Thank you.
If used as a basal spray with Pentrabark, how long should I wait to apply it after having used lime-sulfur (also as a basal spray)? I’m treating a crab apple for apple scab.
Eric,
Lime sulfur is good for an entire season and since you already applied it you should follow the directions/recommendations of that product for when a new product can be used.
Thank you.
Hello and thank you for all your helpful feedback. I’ve used Plant Dr. by bark application in the spring with Pentra-Bark on my peach trees to attempt to control canker. There is considerable disease pressure. Is it advisable to reapply? If so, is 14 days an appropriate interval? Thank you.
Hello Jonathan,
Yes, you should apply at the higher rate on the label at 2-3 week intervals until control is reached. If you need to determine severity please consult with Farm Advisor or your local extension service (every county has one).
Why is Organocide Plant Doctor Systemic Fungicide NOT considered organic, but this product is? https://www.yourplantdoctor.com/organocide-organic-fungicide-faqs/
I don’t understand how they differ. Thanks in advance!
These two products have different ingredients (you may refer to the product labels). Plant Doctor is an EPA registered fungicide with minimal impact on the environment and low risk to user and non target organisms, it is beneficial and nutritional to plants.
Right. I got that. What I’m asking is “why” it’s not considered organic. Is it because mono- and di-potassium salts of phosphorous acid are not naturally occurring in this state?
That’s correct the ingredient is considered synthetic.
Thank you. Have a great day!
I diluted some Organacide in my sprayer about 3 months ago and didn’t use much of it. It is obviously past the 30 day limit for potency. Can I add a little more concentrate to this expired diluted solution? Since expired, perhaps add 1 .5 oz and then top off the gallon of water? What is your suggestion?
Hi Kim,
Since adding water introduces bacterial growth over time, we recommend that you dump it out. You could dump it on your grass if you like. Then clean the sprayer and start over.
What is more effective to combat powdery mildew in marijuana plants? To use as a foliar or root drench?
Plant Doctor Systemic Fungicide can be applied either foliar or drench and has the same effectiveness. Product travels throughout the plant with either application method.
[…] fusarium, and root rot, you can combat it by using an eco-friendly systemic fungicide called Organocide Plant Doctor. It can fight off widespread disease problems by going through the entire […]
[…] fusarium, and root rot, you can combat it by using an eco-friendly systemic fungicide called Organocide Plant Doctor. It can fight off widespread disease problems by going through the entire […]
Hello,
Can Plant Doctor be used on Acacia cultriformis to prevent/treat root rot?
Thank you
Hello Gerri,
You can definitely use Plant Doctor on your plant, if in doubt apply on a small area.
After initial application, a systemic product will rapidly absorb and then work throughout the entire plant. Other fungicides are contact fungicides: the product must make direct contact with the disease area in order to effectively treat the disease.
Plant Doctor is both a preventative and curative.
• It will control pythium & phytophthora (root rot) as well as powdery mildew (foliar disease).
• After 14-21 days, it converts into nutritional potassium and phosphorus, that the plant consumes as nutrients and nothing is left in the ground.
• It is also a bio-stimulant; once inside the plant, it stimulates the plant’s metabolism resulting in more plant vigor, increase bloom and crop yield, and increasing stress resistance.
• The active ingredients have been used for years in commercial growing and agri-business markets with great success
Thank you.
Hello! Can I use Plant Doctor on orchids? If yes, How much product per gallon of water.
Thank You!
Nadia,
You may use Plant Doctor on your orchids, how much product per gallon will depend on what the issue is, what is the disease affecting your orchids?
The Plant Doctor label has different doses and applications listed.
Thank you.
Is Plant Doctor OMRI listed or considered organic? In combining it with Pentra-Bark per labeling instructions, are residuals increased? Is the combination, Plant Doctor with Pentra-Bark, considered organic? The application is to pear trees. Thank you for your assistance.
Mark,
The residual will not be increased.
Plant Dr. Fungicide is not Organic. It is environmentally responsible though and is approved by EPA.
The Pentra-bark is to help carry the fungicide into the tree.
Thank you.
Will this product help combat shothole disease?
Michael,
This particular disease is not listed on the Plant Doctor label but it is a fungal disease and Plant Doctor is a fungicide.
You can most certainly use it. Please follow the label instructions for your specific type of plant or tree and follow the lowest doze to start.
Thank you.
Hello – can you use plant doctor systemic fungicide with a hose sprayer? What would be the amount with an Ortho hose sprayer? Half tank and 3oz setting on dial? I have tall cherry trees with a bad case of brown rot. We have done a few weeks of soil drench but would like to spray as much of the leaves as we can. The trees are about 20 feet high or so
Bill,
Yes, you can use Plant Doctor Systemic Fungicide with a hose end sprayer. The label calls for 2-6 tsp per gallon of water.
The doze recommended is up to 1 oz. of product per gallon of water.
Thank you.
Will plant doctor crue powderly mildew?
Wayne,
Listed on the label is Downey Mildew, they are both a form of fungus. Plant doctor should work for you.
Thank you.
Can spary plantdoctoron a hot day?
Wayne,
Per label instructions please apply the product during the morning or evening time when there is less heat and sun.
Thank you.
Hello, on the instruction for CUCURBITS and for Eggplant, why is the use limited to 6 applications per season? Thank you!
Jennifer,
The limitation on use per season is because using more will not give you a better result.
Follow the application rates and you will get the most value.
Using more often will not hurt your plants, but will not increase the efficacy either.
Thank you.
Thank you for your systemic fungicide. I have used it with success on my fig trees and want to try it on other crops. Will you please direct me to a copy of your systemic fungicide label and application instructions? Mine have come off of the container.
Tracy,
Please visit out website, yourplantdoctor.com. On the upper part of the page click on “Products”, then locate the product of choice, scroll down a bit , there you will be able to find the product label.
Hope this helps.
Let us know if you have further questions.
Thank you.
Can I use plant doctor on my zucchini, squash, cucumbers, and watermelon?
Larry,
Yes, you can use Plant Doctor on the plants you listed, please follow label instructions.
Thank you!
Hello, I have thirty or so Korean nut pines that are infected with white pine blister rust (stem cancers on some trees. The fungus is chronartium rubicola and is shared by nearby currents. The pine and currents are shared in the development cycle of the fungus. EPA fact sheet says that potassium monophosphates are OK but dipotassium phosphates are NOT to be used on food crops. Please see this EPA fact sheet https://www3.epa.gov/pesticides/chem_search/reg_actions/registration/fs_PC-176407_11-Oct-02.pdf We would like to cure the fungus and harvest the pine nuts from these trees. Can you explain why it is OK to use Plant Doctor in this case and comment on whether the material would be effective, especially if we use the recommended penetrant and basal coating of the trees?
thanks!
Dale,
Our product is a mixture of mono- and di-potassium phosphites.
We advise you to try it on a small section of trees, you can also contact your local extension, it is a free service, they will let you know if this would be a good remedy.
Unfortunately Plant Doctor has not been tested on this particular fungus.
Thank you.
What is the soil drench rate for Mango trees? I see foliar rate is listed on the label. If I use foliar rate 2 teaspoons/gallon, is it recommended to pour the entire content (gallon) into the soil per tree?
Joy,
Per label instructions, spray the leaves to the point of run-off.
Thank you.
Joy asked for how to soil drench the mango tree and you answered by spraying to the leaves ? does it mean this fungicide should not be used as soil drench for mango trees?
Sami,
You can use Plant Doctor Systemic fungicide as a soil drench. The label will provide the best application method for obtaining the best results and getting your plants back to health, in this case it is advising to use a foliar spray versus soil drench.
Thank you.
Is Plant Doctor Organocide effective on early and/or late blight on tomato plants? If so, what is the best time/method of application?
Richard,
The information you requested is on the Plant Doctor label. I’m more than happy to provide you with the label if you don’t have access to it.
Under “Fruiting Vegetables” on the third row- Tomatoes/Tomatillos late blight and root rot- Foliar Spray- 2tsp. to 2 fl. oz. per gallon of water.
First application at transplant or when direct seeded crops are at 2-4 true leaf, then at one or two week intervals as required to control disease. In high disease situations use higher rates and shorter spray intervals.
Thank you.
Thankfulness to my father who told me regarding this blog,
this weblog is really amazing.
Hello,
We are glad you like it, we appreciate your comment.
Thank you.
I have a 2 lemon trees and a tangerine tree (in California). The tangerine tree is quite large (20′ give or take while the lemon I’ve kept down to about 6-7′) and I’m unable to use spray due to its size (I’d have to wear a hazmat suit and climb on the roof). I purchased your product so I can use it via systemic properties. The trees produce heavy crops. But, they are heavily covered/diseased with black soot/mold, powdery mildew, aphids and, maybe, white fly (spiders love it due to the bugs, too).They are just nasty looking (but the fruit isn’t affected!). It’s so bad that the one of the lemon trees even has the black soot/mold on the branches (I think I’ll have to just cut this tree down). Will this help get rid of these issues? And, due to the major diseases and infestation, how much would I use and how often? Thanks for any help you can give me. I want to save these trees.
Hello,
I’m growing Mango trees and will be using Plant Doctor to control disease pressures. I have the following questions.
1) Can Plant Doctor Systemic Fungicide be sprayed on Mango bloom spikes (before flowering)?
2) Can Plant Doctor be mixed with a Seaweed spray and used on mango?
3) When the spike flowers, can Plant Doctor be sprayed on the flower?
4) Can Plant Doctor be mixed with a bloom formula comprised of Calcium, Magnesium, and Boron?
5) Can Plant Doctor be used in conjunction with another systemic Copper in a rotation? I.e. Use Plant Doctor week 1, then 2-3 weeks later, apply a systemic Copper fungicide (would not mix Copper with Plant Doctor).
Michael,
1) Can Plant Doctor Systemic Fungicide be sprayed on Mango bloom spikes (before flowering)?
Yes, you can spray before flowering/blooming just now during blooming, this is a very delicate stage.
2) Can Plant Doctor be mixed with a Seaweed spray and used on mango?
We see no reason it won’t work. We recommend mixing a small amount and spraying a small area of one tree to be sure it has no negative effects.
3) When the spike flowers, can Plant Doctor be sprayed on the flower?
We recommend waiting until full bloom as plants are in a vulnerable state while flowering.
4) Can Plant Doctor be mixed with a bloom formula comprised of Calcium, Magnesium, and Boron?
We have no data on this. We recommend making a small test batch and spraying a small test area to be sure.
Hint: A quick way to see if the ingredients are reacting (gassing off) is to partially fill a test tube and pull a balloon over the top. If the balloon fills with air, it is reacting.
5) Can Plant Doctor be used in conjunction with another systemic Copper in a rotation? I.e. Use Plant Doctor week 1, then 2-3 weeks later, apply a systemic Copper fungicide (would not mix Copper with Plant Doctor).
When spraying before or after copper compounds an interval of 10 or more days between applications is recommended. Do not spray Plant Doctor if there are obvious copper residues present.
Thank you.
Hello, I bought Organocide + Pentra Bark for my Cherry Trees to treat Canker Bacterial, When will be the ideal time ( weather/ season) to treat the trees?
Sammy,
Apply in Spring and fall for best results.
Thank you
How long does the phosphoric acid stays in the plant/soil after a soil drench? The half-life? I want to stop using it long enough before harvest so that there is no residuals.
Thanks.
Keith,
The product will stay for as much as 7-10 days depending on the plant treated.
Thank you.
Hello – if this product have any effect on unrooted cryptanthus pups? Specifically, does it prevent rooting in any way?
Robert,
Plant Doctor is both preventative and curative. Please follow label closely.
Thank you.
can this be used on greenhouse cucumbers
Pat,
Yes you can.
Thank you
This is more a Thank You note than a comment. About 6 years ago downy mildew came to my property. I can only speculate how, but it did. I really like my hanging baskets, which are in the shade, filled with Accent (walleriana) Impatiens and continued to use them. I tried various methods to control the mildew. Copper soap, watering early in the day and watering at the soil level, not on the plants, bleaching the pots after use.. No matter what I did, about August 15th they were ready to be destroyed. This year I used Plant Doctor. I started by following the directions on the label, using about an ounce per gallon every other week as a foliar drench. It worked, but when applied, no matter how gently, the next day the existing flowers vanished and I had to wait for the buds to blossom to get flowers. Then I read your instructions and used soil drench weekly and problem solved. It is Sept. 08 and still have my baskets. They are going to make it Another problem this year. The weather seemed highly conducive to powdery mildew. I even had it on “mildew resistant” phlox. I started used the “cure method” and while it did not change the damaged leaves back to green (of course) it worked. I have new green leaves and many of the phlox are giving me their secondary blooms. Next year I will start the preventive soil drench the minute they stick their little heads out of the soil. As a retired accountant, I of course figured the cost and believe me, for a home garden like mine, it is “dirt cheap”. Thank you so much.
Carolyn,
We are so glad Plant Doctor worked you.
We appreciate the feedback.
Keep it coming!
Thank you.
Is Organocide Plant Doctor safe for use on properties with well water and septic systems?
Cathy,
Plant Doctor is safe to use with well water and septic systems.
Thank you.
Can I mix your product with insecticidal soap?
Wendy,
We don’t advise mixing Plant Doctor. If you choose to do so, a compatibility test should first be conducted for fertilizers and other products before tank mixing.
Thank you.
I bought Plant Doctor for Botrytis cinerea, or gray mold/fungus at The Urban Farmer in San Francisco when I asked a customer serviceperson what I should use. I had tried Neem oil and “Seranade,” which didn’t seem to help. What strength should I use?
Wendy,
What type of plant(s) are looking to treat?
Thank you.
I am located in Pennsylvania and have three crabapple trees with apple scab. The trees have lost more than 3/4 of their leaves. Is it worth doing a soil dredge at this point? Or should I wait to treat in the spring? Not sure if treating would help limit the amount of spores that return next season. Thanks!
Sarah,
You can most definitely treat your trees now. Plant Doctor works by stimulating the metabolism and plant vigor to such a high degree the plant staves off and overcomes disease.
Thank you.
Will Plant Doctor kill pathogens both on contact and systemically? Or just systematically? Thank you,
A.J.
Plant Doctor works both on contact and systemically.
Thank you.
Fantastic, thanks friends!
In instructions asterisk = Not for use in California.
Why?
Michael,
This is a labeling requirement for the state of California.
None of our products fall under the label requirements of Prop 65 and none of our product contain heavy metals.
Thank you.
Hi, This is a great forum. I noticed some white colored mold growing on dead petioles and dried calluses that are just under or touching the soil line. They are growing in peat top dressed with perlite. The plants were initially in a cloner too long and some developed a white colored mold on dead stems. Roots have been established for around two months and things seem very healthy. However, sometimes when moving perlite from around the stalk a hardened callus (formed from cloning collars) or a dead petiole that got buried is completely covered in white mold that sizzles if sprayed with H2O2.
Do you recommend slightly drenching the soil around the staulk with Plant Doctor?
I don’t know if this fungus is benign to plants and only attacking dead organic mater that happens to still be attached to the plants or a more serious white mold that can slowly kill the plant once it penetrates more deeply. It doesn’t seem to grow on living tissue like powdery mildew. I don’t think it’s the classic white mold aka southern blight bc I haven’t seen any dark colored pods nor is it fuzzy like white or grey mold. I figured it would have killed the plants by now if a more serious white mold. It looks a lot like the harmless white fungi that grows on top of over watered peat moss or the twigs in peat but the way it completely covers a dead petiole under the soil is what concerns me and it’s likely it came from the cloner.
Thanks for your help,
A.J.
You can definitely apply Plant Doctor, it won’t do any harm. We have no way to diagnose what is on you plant, we recommend you reach out to your local county extension service. It is a free service that can determine a problem, provide the best varieties of plants in your area, or general maintenance of your garden. If you decide to use Plant Doctor please follow the label instructions as close as possible.
Thank you.
Thank you Plant Doctor for your response. My plan of action will be to apply a bio fungicide that contains Streptomyces lydicusin a beneficial microbe. I plan on spot treating the stalks of cuttings using a spray bottle allowing some Plant Doctor to reach the roots. Do you recommend applying the Streptomyces lydicus before or after Plant Doctor and will Plant Doctor kill pathogens on contact in the soil? I’m also considering adding sm-90 to the watering regiment for prevention while using Plant Doctor to spot treat. Thanks,
Which is the preferred way to control fire blight in fruit trees soil drench or a spray?
Darren,
Regarding Fire Blight The Plant Doctor label calls for 2 different types of applications, foliar spray or basal bark spray.
Please let us know if you don’t have the instructions available, we would be happy to provide these to you.
Thank you.
Can Organocide be mixed with pesticides and used to spray fruit trees at the same time?
Darren,
The product should not be tank mixed with most adjuvants, surfactants, stickers, or copper compounds. A compatibility test should first be conducted for fertilizers and other products before tank mixing.
Thank you.
I have a 2500 gallon tank that feeds about 14,000 sq feet of greenhouse for cannabis through a drip system. How would you recommend I apply plant doctor systemic to treat pythium, phytophthora, and powdery mildew. And how often do I apply for preventative maintenance? Thank you.
For Cannabis pythium disease (stem rot), what is the application rate. I heard that it is brushed on with pentra-bark, but I do not know the mixture ratios. Thanks
Ben,
We recommend Plant Doctor Systemic Fungicide for Pythium and phytophthora. It is systemic. It is both curative and preventative.
Please note – we have not personally tested on medical marijuana.
Thank you.
Hi, I’m a licensed legal cannabis grower in the state of Colorado. I’m not here to bash your product but to warn other cannabis growers that the recommendation amount that you have received from other growers is far too much. I applied a soil drench of Organocide Plant Doctor Systemic Fungicide at the suggested 3 tsp per gal and within about 9 hours the leaves turned brown, shriveled up and dried out. I know i was following the recommendation at my own risk. Im not blaming Organic Laboratories. But it doesn’t say how much of that gallon to add to each plant. Obviously if one was to use a whole gal than 3 tsp of the product would be available to be taken up by the plants and if split between two plants only 1 1/2 would be available to each. I’m sure that has to play a major role in how it effects the plants also. Please use cautious and ues Systemic Organocide Plant Doctor sparingly. Thanks!
Marty,
I apologize for the delay in responding.
When using a soil drench, you would typically use no more than one cup of the mixture for a mature plant.
The concept of getting a systemic fungicide into the soil is simply pouring a sufficient amount to get to the root system.
Mix 3oz. of Plant Doctor in 25 gallons of water and apply to a 10×10 area.
I’m sorry for this situation, we’ll forward this to our website administrator to make changes where see fit.
Thank you.
Plant Doctor Application for Medical Marijuana:
PLEASE NOTE – we have not personally tested on medical marijuana, however, these are the recommendations we’ve received from growers, so you may follow application directions at your own risk.
First off i’d like to thank Plant Dr. for advising us of how much of the solution to administer when applying a “soil drench”. I couldn’t find that information anywhere on the website and i took that literally. I mixed it at 3 tsp per gal just like they recommend above and applied it as if i were watering my plants. They really need to be more clear about what they consider a soil drench to be. The definition of drench is (wet thoroughly; SOAK) that’s what i did and it resulted in what i believe to be phytotoxicity of my plants. (Correct me if i’m wrong). Please add a recommended amount of mixed solution to apply to each plant in the recommendations so this doesn’t happen to others. Thanks.
Marty,
We apologize for this inconvenience.
Thank you
I have used plant dr at 15ml/gal weekly in hydro and in smartpots in the greenhouse and have never had a problem like this. Did you happen to spray anything w/in the couple days you did your drench? All other environmental conditions on point? Did you already have fusarium or a type of rhizoctonia when you gave them the PD?
I have seen pythium/fusarium/rhizoctonia strait up kill plants in a matter of a few days. I haven’t seen much else just drop plants like in your description.
I have kept pythium at bay, after having plant death, w plant dr for weeks on end and still pulled an average harvest for the flower room they were in. So I kinda swear by this stuff.
The 15ml/gal and 17.5ml/gal I have used successfully. Even though the EC of the solution seems outrageous. (3.0+) I still have had no ill effects, this doesn’t mean that whatever strain you are growing couldn’t handle an EC that high. That is possible. I grow mostly kush varieties and glue. They seem to handle it just fine. Even when plants are just out of their clone size and moving up for the first time. Still no problems. I love plant dr and it’s one of my favorite IPM weapons as a farmer.
Hi,
For your greenhouse smartpots, you say you added 15mL/gal. How many gallons do you apply each time you treat them. I’m about to try the soil drench for the first time to prevent pythium and hopefully powdery mildew as well. I was thinking more like a total of 1 mL of Pant Doctor per plant for each treatment. Thanks.
Ben,
Can you please let us know what plant/s you are treating?
Thank you.
I’m treating cannabis.
Ben,
Plant Doctor Application for Medical Marijuana:
Please note – we have not personally tested on medical marijuana, however, these are the recommendations we’ve received from growers, so you may follow application directions at your own risk.
Downy / Powdery Mildew:
Foliar Application:
Cure Mildew: 1-2 TBSP per gallon weekly for mildew until clear then prevention.
Prevention: ½ tsp per gallon weekly
Soil Drench
Cure Mildew: 3 tsp per gallon weekly for 3 weeks or until mildew clears. Must be used separately in reservoir for 1 day (no other nutrients), because plant doctor will increase PPM and EC (electrical conductivity) of water. Drain reservoir and continue with normal feeding program.
Prevention: ½ tsp per gallon weekly
Fusarium:
Soil Drench
3½ tsp per gallon weekly for 3 weeks or until it clears then prevention ½ tsp per gallon weekly.
Must be used separately in reservoir for 1 day (no other nutrients), because plant doctor will increase PPM and EC (electrical conductivity) of water.
Drain reservoir and continue with normal feeding program.
Plant Doctor will not harm beneficial bacteria or mycorrhizae fungi.
It is formulated to target only pathogenic fungi.
Thank you.
That doesn’t answer my question. If I add 3 tsp to 1 gallon of water, how much of that solution to I add to the plant in a 10 gal smartpot? The entire gallon? A better way to put it is, how much Plant Doctor does each plant get? Thank you.
Ben,
Our apologies if you felt your question was not answered.
When using a soil drench, you would typically use no more than one cup of the mixture for a mature plant.
The concept of getting a systemic fungicide into the soil is simply pouring a sufficient amount to get to the root system.
I hope this helps.
Thank you.
Colin, the only thing i’ve ever sprayed on my plants is neem oil and i had not sprayed them within 2 weeks of applying PD and i have never had ANYTHING like this happen before. I think what occurred is referred to as phytotoxicity. Im really confused as to how you could get away with using it at that rate in hydro with the roots directly in the solution for 24 hrs. Especially since they said you would typically use no more than a cup. It seems like your plants would absorb more of it than mine did resulting in the same adverse effects… BTW it was Cookies Kush that i was growing.
Marty, did leaves turn brown as if the roots were dying off as a result of the product or brown crisp drying as if fertilizer burn? The high EC of the product compounded on your current levels sounds like it could have been too much salt in the root zone depending how much you applied. Thanks for asking the question on quantity used, that really helps avoid adding too much creating a possible imbalance.
AJ, I think you’re right! I think it was phytotoxicity due to the salinity of the Plant Dr. I applied approx 1/2 gal of solution mixed at 15ml (3 tsp) per gal of water. Obviously that was too much. You’re welcome. Glad i could help! Just wanted other growers to avoid the same mishap.
Thanks Marty, That’s great to know and something I’ll always consider from here on out when treating roots with any product.
Hi there is some great information here, however I’m running a hydroponic system with lettuce, jalapeño, peas, cucumber, tomatoes, watermelon, honeydew, I have 2 reservoirs one has become infected with root rot. Is there a recommended amount per gallon for Hydro?
Hi Jonathan! Thanks for your question.
We don’t have specific instructions for reservoir feeding, but customers do use it in that manner.
They do their own calculations, then do a flush at some point.
This product is systemic, so you could just do a foliar application. It is both preventative and curative for root rot.
Thank you for using our product.
Is Organocide Plant Doctor considered a certified “organic” treatment? I’ve seen different things online and been led to believe it is. Now I see nothing here about its use in organic gardening. I’d like to return the product if it cannot be used as an organic treatment for brown rot and other fungi on my cherry tree.
T. Flores,
Plant Doctor is a systemic fungicide, it is not organic.
However, it is environmentally responsible, especially when compared to the harsh chemical alternatives.
Plant Doctor is an EPA regulated product made from phosphites. The Plant Doctor treats pathogenic fungus through a systemic procedure and does not work on any type of insect. When a plant absorbs the readily available phosphite it triggers the plants defense mechanisms allowing it to defend its self from harm; similar to how a vaccine works on a human.
PLANT DOCTOR is both a preventative and curative.
It will control pythium & phytophthora (root rot) as well as powdery mildew (foliar disease).
After 14-21 days, it converts into nutritional potassium and phosphorus, that the plant consumes as nutrients and nothing is left in the ground.
It is also a bio-stimulant; once inside the plant, it stimulates the plant’s metabolism resulting in more plant vigor, increase bloom and crop yield, and increasing stress resistance.
Thank you.
Will Organocide help with several different problems (spotted leaves, discolored yellow leaves, mealy bugs, etc.) on the leaves of a newly planted magnolia tree?
I have bought your Oranocide plant doctor to spray my ornamental shrubs. Do not know the name because they were here when we bought house. I have black leaf spots on them. Your container instructions do not provide ratio for shrubs. Please inform me how much I should use and how often to get rid of this fungus. Thank you kindly. Any information concerning this would be helpful
Dorothy,
Plant Doctor is a systemic fungicide can be sprayed directly on the foliage or applied to the root zone.
After initial application, a systemic product will rapidly absorb and then work throughout the entire plant. Other fungicides are contact fungicides: the product must make direct contact with the disease area in order to effectively treat the disease. Since the plant you have is not listed on the label, we suggest you follow the lowest dose advised. Foliar spray at the rate of 2-4 tsp of Plant Dr. per gallon of water, we suggest start at the lowest dose. 7 to 14 days, repeat if required. You can also do a soil drench at the rate of 1/8 tsp of Plant Dr. per gallon of water. It will take at least 2.5 hours for plant to absorb the product, once per month.
Thank you.
Plant Doctor,
Will this product prevent clematis leaf spot by the soil drench method? If so, how much per plant and how often?
Dear Bruce,
Yes, you can apply as a soil drench as Plant Doctor is systemic, this Fungicide moves through the entire plant to treat disease. We have no specific testing on clematis leaf spot, but we are confident it will help the overall health of your plant. We would love your feedback!
Please follow the label for a similar condition.
Apply ORGANOCIDE PLANT DOCTOR™ by various application methods,
including foliar spray, soil drench, soil incorporation, basal bark application
and bare root dip.
When applying ORGANOCIDE PLANT DOCTOR™ to plant species for the
first time, spray a limited number of plants first and wait for 3-7 days. Then
check for leaf burn (phytotoxicity).
MIXING INSTRUCTIONS
1. Fill the spray tank with ¼ – ½ of the volume of water required before
adding ORGANOCIDE PLANT DOCTOR™
2. Add ORGANOCIDE PLANT DOCTOR™ slowly to the tank and agitate
3. Fill tank with balance of water to the desired volume
4. Agitate during application
Thank you.
Fungus Gnats x pythium or phytophthora.
A lot of times one comes w the other. Is the plant doctor able to be mixed w other ‘cides such as azidirachtin (azatrol/azamax) in order to cure pythium or root rot while simultaneously slowing down fungus gnat larvae? This is in regards to medical marijuana in a hydro rockwool set up.
Dear Colin,
Plant Doctor is both curative and preventative for Pythium and Phytophora. No need to use another product with it.
Thank you.
How would you administer this product to marijuana for root rot on a soil drench?
Hello, could plant dr help push plants through tobacco mosaic virus? Or DUDS virus?
I saw it help terminate Pythium, and fuserium
Thanks
Dear Logan,
It is possible that Plant Doctor can help push plants through tobacco mosaic virus or DUDS virus but it has never been tested on these diseases for efficacy.
You may want to do a test plot on a small area and wait 36 hours before doing it on the rest of the plants.
What does this FAQ mean
“Can Plant Doctor be used with fertilizers?
You can add nutrients along with Plant Doctor in the following order.
1. Fill your container half full of water and add the other nutrients – mix well.
2. Add the Plant Doctor – mix well.”
Is the plant doctor in this case a diluted solution to fill the remaining half of the container, and should the plant doctor concentrates and nutrient concentrate be added to treat half the container, or all of it.
The Plant Doctor can be added at the recommended rate on the label to the water.
Add the Plant Doctor after adding the fertilizer.
Please do not hesitate to ask any additional questions.
Thank you.
Why only half full?
As long as your following the label instructions, you can make the container full.
What concentration should I use to soil drench a large Crepe Myrtle for black spot and how often should I repeat?
For Soil Drench – 1/8 tsp. per gallon of water
Apply each gallon of solution to an area of 4 square feet. Follow application with irrigation. Repeat as required. Limit of one application per month.
It should be applied early morning or late evening. There is very little risk of leaf burn when applied to plants, when used as directed. Do not freeze or spray in temperatures over 95°F.
Please do not hesitate with any additional questions.
Will plant doctor organicide harm mycorrhizae?
Plant Doctor will not harm beneficial bacteria or mycorrhizae fungi.
It is formulated to target only pathogenic fungi.
Will this product work on Apple scab or anthracnose on Apple trees? How is it applied for the best results? Large tree
Yes, Plant doctor will work on apple scab. There are two application rates.
Per the label instructions:
Foliar Spray – 3 to 4 tsp. per gallon of water
First application at open cluster. Last application at fifth cover or fruit at 2″ to 2½” diameter. Total of 10 applications at 10 to 12 day intervals. When conditions are conducive to a black spot outbreak, apply ORGANOCIDE PLANT DOCTOR™ immediately. Note: After 4 or 5 consecutive applications some yellowing of extension growth may be observed. If yellowing occurs use another fungicide until yellowing of leaves disappears.
For bark application:
Basal bark spray apply early spring at bud swell or at silver tip stage of growth. 16 fl. oz. + 16 fl. oz. of water + 1 fl. oz. Pentra- Bark™ Bark Penetrating Surfactant.
Spray a combination of ORGANOCIDE PLANT DOCTOR™ and Pentra- Bark™ around the complete circumference of the tree trunk until saturation/runoff. Spray from ground level up to 5 feet above the soil line, including the base of the first scaffolding limbs, if present (treatment generally lasts 8-12 weeks depending on pathogen levels. Higher disease pressure will shorten the length of control). Various types of application equipment can be used such ashydraulic sprayers, handheld pump-type sprayers, backpack sprayers, hose-end applicators with back flow prevention devices, and other similar application devices.
It should be applied early morning or late evening. There is very little risk of leaf burn when applied to plants, when used as directed. Do not freeze or spray in temperatures over 95°F.
During the summertime temperatures can stay above 95 degrees. During this time, we recommend spraying at night when there are cooler temperatures and the product has time to dry.
Please do not hesitate to reach out again with additional questions.
We look forward to hearing your results.
I asked about treating Cherry Leaf Spot on the 3-in-1 FAQ and was advised to use Plant Doctor. I purchased plant doctor, but the label doesn’t advise how to treat this problem. How much should I use, what time of day and of year, and by what method?
Organocide has never been tested or studied on this particular disease. It certainly will not hurt your tree if you follow the instructions. We suggest you try on a small area of the tree first.
We recommend 2-4 tsp. per gallon of water. Apply spray to thoroughly wet all foliage. Application intervals: 7 to 14 days
Repeat as required.
It should be applied early morning or late evening. There is very little risk of leaf burn when applied to plants, when used as directed. Do not freeze or spray in temperatures over 95°F.
If you don’t get the results you are trying to achieve, please reach out to your local extension service for further assistance.
Please do not hesitate to reach out again with additional questions.
can you spray medical marijuana flowers with 3 in 1 organocide?
We want to thank you for writing to us and for viewing our website.
You can use Organocide 3 in 1 Garden Spray if your treating for one of the following: It kills the eggs, larvae, nymphs and adult stages of over 25 soft bodied insects including (but not limited to) aphids , chinch bugs , citrus rust mites, flea egg & larvae, fuchsia mites, fungus gnats , hemlock wooly adelgid, leaf-rollers, mealy bugs, psyllids, scale , spider mites, thrips, and whiteflies.
Please follow the product label for application rate and apply Organocid during early morning or late evening. Do not freeze or spray in temperatures over 95°F.
Please do not hesitate to reach out again with additional questions.
I asked a question on Google as to whether Hi-Yield vegetable, flower and ornamental fungicide could be sprinkled directly on my tomato plants. I hope that’s true because I did it earlier today as protection from whatever. Please let me know as soon as possible. I don’t want to lose these plants. I lost all of of them last year due to green worms. I know that’s a different problem, but I’m trying so hard to take good care of them.
Thank you
We want to thank you for writing to us and for viewing our website.
We recommend contacting your local extension service, they can diagnose what’s going on with your plant. That will help us determine if we have anything that can help.
Please do not hesitate to reach out again with additional questions.
Can 3 in 1 Garden Spray be used on orchids to combat scale. What else will it combat. If mixed with fertilizer how much garden spray to a gallon? Also, can it also be a preventive treatment for scales? Please respond. I’m a little hesitant to use this on orchids. Also, what is the difference between this product and Safer Insect Killing Soap Concentrate? Thank you for your response.
We want to thank you for writing to us and for viewing our website. We appreciate your questions and feedback.
Orchids are sensitive.
This should be tested on a small area first to determine sensitivity.
We do not have scientific data to support usage on orchids.
Mix 3oz per gallon as per instructions on the current label.
The difference is ours is organic and won’t harm beneficial insects such as honey bees and butterflies.
If you have any questions please feel free to contact us again.
Thanks so much for using our products and for your referrals!
We are proud to be a leading producer of earth friendly pesticides and fertilizers.
Can Plant Doctor be used in controlling apple scab and if so, how often does it need to be applied?
Yes it will. Please download our product label for application directions.
I hope to do a soil drench for controlling apple scab (foliar spray is a bit too much of an undertaking). What would you recommend for a mixture ratio in water?
Since this is off the label. We recommend using the lowest application for soil drench. The rate is 1/8 tsp per gallon of water.
Hope this helps.
Please do not hesitate to reach out again with additional questions
How long until squash may be eaten after foliar application?
We want to thank you for writing to us and for viewing our website. We appreciate your questions and feedback.
There is no re-entry time after application and plants can be harvested right after spray.
Organocide is made up of all food-grade oils.
Thanks so much for using our products and for your referrals!
We are proud to be a leading producer of earth friendly pesticides and fertilizers.
Can you tell me what the shelf life is of Plant Doctor? I bought some in the Spring 2015. The product is excellent, I have used it before.
Hello Michael,
Plant Doctor concentrate will not expire. Shake well after it’s been stored properly before diluting.