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I’ve come across some organic fungicides and pesticides and wonder if anyone could help with putting together a spray program for a season. They would be used on hybrid grapes with little to no Sulfur Sensitivity, such as Cayuga White, Marquette, St. Croix, Frontenac and Sabrevios. I would like to create a separate program for grapes such as Chambourcin and Ives.
Organic Sprays:
1) Copper – *effective against Downy Mildew
2) Sulfur – Lime Sulfur – Bonide Liquid Sulfer – Micronized Sulfer *effective for dormant spray, fungicide and pesticide.
3) Potassium Bicarbonate salts (Amicarb, Kaligreen, Milstop) *effective against Powdery Mildew.
4) JMS Stylet Oil (paraffinic oil) *effective against powdery mildew, as an insecticide and for virus control.
5) Sporan (Rosemary Oil, Clove Oil, Thyme Oil, wintergreen oil, lecithin, butyl lactate) *effective against powdery mildew, downy mildew, black rot, Botrytis bunch rot, and Eutypa dieback in grapes.
6) Neem Oil *effective against acarids, aphids and mildew. *effective against powdery mildew, downey mildew, mites and aphids.
7) Insecticidal Soal (M-Pede) *effective against leafhoppers, mealybugs, and some mite species.
8) Serenade (Bacillus subtilis-biocontrol agent) *the best organic option for control of Phomopsis, other than dormant applications of lime sulfur or copper. *used toward the end of the powdery mildew season.
9) Sonata (Bacillus pumilis-biocontrol agent) *effective against Botrytis
10) Regalia *effective against powdery mildew, bacterial spot, late blight, early blight and target spot.
11) Compost Tea (Microbial cocktail)
12) Mildew Cure *effective against powdery mildew
13) Cease *effective against Botrytis, Powdery Mildew, Anthracnose, Didymella bryoniae(Gummy Stem Blight) and several leaf spot diseases such as Alternaria and Entomosporium.
14) Nettle *effective against aphids, acarids, prevents mildew, brown rot
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