Organocide® Plant Doctor® Systemic Fungicide FAQs

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?
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 3oz 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 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.

26 Comments

  1. 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.

  2. 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.

  3. Will plant doctor organicide harm mycorrhizae?

    • Plant Doctor will not harm beneficial bacteria or mycorrhizae fungi.
      It is formulated to target only pathogenic fungi.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. 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.

  9. 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

  10. 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.

  11. 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.

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