Hello, powdery mildew, epidemic disease will make green jujube young fruit blackened fruit drop. No picture can not see, give you two disease prevention and treatment methods, decide for yourself. Green jujube disease mainly harms jujube fruit, rain will occur, mainly with allylmorpholine, flumorpholine, fine methomyl, cyanofenazole, ank manganese zinc prevention and control, at the same time with methomyl or fumicarb flush a mu of land 1 a 2 kilograms can be. The powdery mildew is generally controlled by triazoles. The best preventive effect of pyrimethanil, treatment can be used phenyl ether metronidazole, has been azole, ether fungicide, serpentine, sulfur water dispersant, etc. can be sprayed in turn

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