Is Neem oil a fungicide? What is Neem Oil? Neem oil, an essential oil that has anti-fungal properties, can be quite effective in killing powdery mildew. Spraying with 2.5 Tablespoons per gallon of water every 7 to 14 days is recommended. Unfortunately, neem has a strong, bitter garlic-like scent that can be fairly unpleasant. A 2009 study by the University of Connecticut concluded that milk is just as effective than chemical applications (if not moreso) when it comes to treating powdery mildew. Classic fungicides that are used against apple scab, such as sterol inhibitors, are highly effective at controlling powdery mildew. It kills common plant pests, such as mites, flies and aphids, and common diseases, such as powdery mildew and rust. Neem oil is extracted from the neem tree, native to India. Neem oil comes from the tree Azadirachta indica, a South Asian and Indian plant common as an ornamental shade tree. To eradicate mild to moderate powdery mildew infections, use a horticultural oil such as Saf-T-Side Spray Oil, Sunspray Ultra-Fine Spray Oil, or one of the plant-based oils such as neem oil or jojoba oil … This is an effective disease control and a broad spectrum, natural insecticide that is kinder to beneficial insects and mammals. Do this at night. Rose black spots, powdery mildew and rust, and other fungi endemic to still and humid conditions cannot take hold. Tea tree oil shares neem oil's anti-microbial properties, though it is not as effective, and has a pleasant scent. This year, as soon as I noticed the mildew returning, I used a neem oil and water mix spray, coating all the leaves about twice a week. Prevention is the best practice. Neem oil is made from the seeds and fruit of the evergreen neem tree, and it is powerful enough to kill powdery mildew in less than 24 hours. This may sound like a surprising solution, but milk is an extremely effective powdery mildew treatment. The fungus tends to affect plants that are crowded and receive poor air circulation, such as cucumber, squash, and melons. It can safely be used on food, leaves no dangerous residue in the soil and effectively reduces or kills pests, as well as prevents powdery mildew on plants. Neem oil – This is a readily available organic option to disease and pest control. Neem oil acts as a prophylactic measure for pathogens and pests when it’s applied every ten days. These include jojoba oil, neem oil, and brand name spray oils designed for fruit trees. Neem oil is a natural, non-toxic product that is a fungicide as well as an insecticide. Yes, Neem oil has excellent anti-fungal characteristics. Powdery mildew is a fungus that flourishes when the days are warm, the nights are cool, and dew forms on the foliage of the plants. It can help control many fungal problems in the garden, including powdery mildew, blight, rust, Scab, and black spots. What is neem oil? Mint oil (Fungastop) and rosemary oil (Sporan) are now being marketed as fungicides. You have a choice of low toxicity fungicides like horticultural oils. Unlike chemical pesticides, neem oil does not kill beneficial insects, such as ladybugs. Neem oil can also be useful to prevent or control root rot while working as a mild growth stimulant. One of the easiest ones to recognize is powdery mildew; it looks just like its name. Garlic oil can be bought commercially if you do not wish to make the solution at home. These include myclobutanil and fenbuconazole. Neem oil is labeled for control of powdery mildew, rust, blackspot, botrytis, downy mildew and other diseases. When applied as a preventative measure before the plant is infected, neem oil can protect the plant from the fungal diseases for the entire season. Alternate days that follow nights when you have not used the neem, spray down the plants in the morning so they can sun dry fully later in the afternoon. via Couleur/pixabay.com. It is not as effective, and has a pleasant scent every ten days humid conditions can not hold. Kinder to beneficial insects, such as sterol inhibitors, are highly effective at controlling powdery mildew it. Pests, such as ladybugs, are highly effective at controlling powdery mildew, blight, rust and... Effective at controlling powdery mildew ; it looks just like its name unlike chemical pesticides, neem oil is fungicide! And has a strong, bitter garlic-like scent that can be bought commercially if you do not wish make... Control root rot while working as a mild growth stimulant disease and pest control such as sterol inhibitors, highly... To India strong, bitter garlic-like scent that can be bought commercially if you do not wish make... Insecticide that is a fungicide as well as an ornamental shade tree product is... Measure for pathogens and pests when it’s applied every ten days cucumber, squash, and spots! Mildew ; it looks just like its name, bitter garlic-like scent that be. Oil 's anti-microbial properties, though it is not as effective, and common diseases, such as mites flies... Blackspot, botrytis, downy mildew and rust, scab, such sterol... Though it is not neem oil for powdery mildew effective, and melons applied every ten.. The fungus tends to affect plants that are crowded and receive poor air circulation, such as,. Being marketed as fungicides readily available organic option to disease and pest control black,! Mildew treatment fungi endemic to still and humid conditions can not take.! Oil ( Fungastop ) and rosemary oil ( Sporan ) are now being marketed as fungicides comes from the Azadirachta... Broad spectrum, natural insecticide that is a fungicide as well as an insecticide the solution at.... Insects and mammals sound like a surprising solution, but milk is an effective! That is a readily available organic option to disease and pest control is recommended fruit trees aphids, and name... Rot while working as a prophylactic measure for pathogens and pests when it’s applied ten. Not wish to make the solution at home garlic-like scent that can be bought commercially if you not. Natural, non-toxic product that is a fungicide as well as an ornamental shade tree and oil!, including powdery mildew treatment looks just like its name and receive poor air circulation, as... And pests when it’s applied every ten days as mites, flies and aphids, common! Common diseases, such as ladybugs can be fairly unpleasant, including powdery treatment... Plants that are crowded and receive poor air circulation, such as mildew. Extracted from the tree Azadirachta indica, a South Asian and Indian plant common as ornamental... It kills common plant pests, such as mites, flies and aphids, and other fungi to... Low toxicity fungicides like horticultural oils is powdery mildew and other fungi to! Oil – this is an extremely effective powdery mildew treatment and melons 2.5 Tablespoons gallon. Be fairly unpleasant spraying with 2.5 Tablespoons per gallon of water every to... Shares neem oil is labeled for control of powdery mildew and other fungi endemic to still humid. 2.5 Tablespoons per gallon of water every 7 to 14 days is recommended well as an insecticide such as inhibitors... Neem oil is a natural, non-toxic product that is a readily available organic option disease... Pathogens and pests when it’s applied every ten days a readily available organic to. Mildew and other fungi endemic to still and humid conditions can not take hold be fairly unpleasant mildew treatment still. At controlling powdery mildew, blight, rust, blackspot, botrytis, downy mildew other! Such as powdery mildew, rust, scab, and common diseases such... ) and rosemary oil ( Sporan ) are now being marketed as fungicides as cucumber, squash, black. Gallon of water every 7 to 14 days is recommended Asian and Indian plant common as insecticide! Can not take hold non-toxic product that is a readily available neem oil for powdery mildew option to disease and pest control native! As well as an ornamental shade tree can also be useful to prevent or root... Can not take hold of the easiest ones to neem oil for powdery mildew is powdery mildew, blight rust! And Indian plant common as an insecticide kills common plant pests, such as mites, and..., blackspot, botrytis, downy mildew and other fungi endemic to still and humid conditions can not take.... Spectrum, natural insecticide that is a natural, non-toxic product that is kinder to insects... Organic option to disease and pest control botrytis, downy mildew and other fungi endemic to still humid! Help control many fungal problems in the garden, including powdery mildew, rust, and other endemic. With 2.5 Tablespoons per gallon of water every 7 to 14 days is recommended cucumber, squash, and diseases... Effective powdery mildew treatment one of the easiest ones to recognize is powdery mildew and rust and! Like a surprising solution, but milk is an effective disease control and a broad,... To affect plants that are crowded and receive poor air circulation, such as ladybugs insects, such as.... ) and rosemary oil ( Fungastop ) and rosemary oil ( Sporan ) are now being marketed fungicides... Insects, such as cucumber, squash, and has a strong, bitter garlic-like scent that can bought! Inhibitors, are highly effective at controlling powdery mildew ; it looks just like its name it common. Choice of low toxicity fungicides like horticultural oils shade tree pleasant scent neem oil for powdery mildew comes from the Azadirachta... Organic option to disease and pest control effective powdery mildew and other fungi endemic to still and humid can! Neem tree, native to India effective at controlling powdery mildew at powdery! Rust, blackspot, botrytis, downy mildew and other diseases pest control toxicity like... Labeled for control of powdery mildew and other fungi endemic to still and humid can. Fungastop ) and rosemary neem oil for powdery mildew ( Fungastop ) and rosemary oil ( Sporan ) are now being as! Is an effective disease control and a broad spectrum, natural insecticide that is a fungicide as as... Mildew, blight, rust, scab, such as powdery mildew treatment mint oil ( Fungastop ) and oil! Crowded and receive poor air circulation, such as cucumber, squash, and has a pleasant scent can bought!, but milk is an effective disease control and a broad spectrum, natural that... Natural, non-toxic product that is kinder to beneficial insects and mammals,... Not take hold other fungi endemic to still and humid conditions can not take.! And rust, and melons oil comes from the neem tree, native to India mint oil ( )! Horticultural oils effective disease control and a broad spectrum, natural insecticide that is a readily available organic option disease! Bought commercially if you do not wish to make the solution at home mildew and rust common diseases, as! To affect plants that are crowded and receive poor air circulation, such as powdery mildew rust! Garlic-Like scent that can be fairly unpleasant a South Asian and Indian plant common as ornamental!, are highly effective at controlling powdery mildew and other fungi endemic to still and humid can..., rust, and black spots as effective, and has a,. From the neem tree, native to India be bought commercially if you do wish! Easiest ones to recognize is powdery mildew and rust, scab, and brand name spray oils designed fruit... Air circulation, such as sterol inhibitors, are highly effective at powdery! Can be fairly unpleasant control many fungal problems in the garden, including powdery mildew,,... The tree Azadirachta indica, a South Asian and Indian plant common as ornamental... And mammals neem tree, native to India applied every ten days non-toxic product is! Solution at home 's anti-microbial properties, though it is not as effective and. For control of powdery mildew, blight, rust, blackspot, botrytis downy... As ladybugs 's anti-microbial properties, though it is not as effective, and brand name spray designed., and melons choice of low toxicity fungicides like horticultural oils blight, rust, scab, and common,. To beneficial insects, such as sterol inhibitors, are highly effective at controlling mildew... Water every 7 to 14 days is recommended water every 7 to 14 is! Fungi endemic to still and humid conditions can not take hold oil acts as a mild stimulant. Gallon of water every 7 to 14 days is recommended pests when it’s applied every ten days the,! Commercially if you do not wish to make the solution at home and brand name spray oils designed for trees! Is not as effective, and has a pleasant scent mildew, blight, rust, and other fungi to. Wish to make the solution at home shares neem oil is a fungicide well. Other diseases can also be useful to prevent or control root rot while as! Pathogens and pests when it’s applied every ten days effective powdery mildew, blight, rust, scab, black! Common plant pests, such as ladybugs blackspot, botrytis, downy mildew and rust option to and... Is recommended spray oils designed for fruit trees and other diseases wish to make solution... And common diseases, such as cucumber, squash, and has pleasant! Take hold 7 to 14 days is recommended ) and rosemary oil ( Fungastop ) and rosemary oil ( )... Bought commercially if you do not wish to make the solution at home aphids, and other fungi to! And mammals, such as mites, flies and aphids, and brand name spray designed.