Apple pre-harvest spray should be cautious

The banned pesticides are 1605, methyl 1605, chlorpyrifos, monocrotophos, methamidophos, trisulfide, omethoate, zinc phosphide, aluminum phosphide, carbofuran, thiram, insecticide, annihilation Wei, Lin Dan and other pesticides. Dicofol cannot be used on fruit trees because it contains high residual DDT.
Pay attention to the pesticides in the last period of the safety period that the spraying time is not less than 7 days: 50% dichlorvos emulsifiable concentrate, 40% dimethoate emulsifiable concentrate, 50% carbendazim WP, 50% chlorhexidine WP, 50% 20% powder rust WP, 50% malathion emulsion; pesticides not less than 10 days before harvest: 25% imipenem emulsion, 25% chlorfenapyr suspension; no less than before harvesting The pesticides in 15 days are: 10% deltamethrin EC, 40% chlorpyrifos EC, 10% permethrin, 25% carbaryl wettable powder; no less than 20 days before harvesting The pesticides are: 10% cypermethrin EC, 75% chlorothalonil wettable powder and 25% diflubenzuron wettable powder; spray pesticides not less than 30 days before harvest: 73% gram emulsion, 20 % 甲甲脒乳油杀剂, 5% phoxim emulsifiable insecticide and 75% chlorothalonil WP bactericide.
The pesticide to be used should be used 10 to 15 days before the fruit is matured. It is advisable to use polymycin, cerulein, Jinggangmycin, huaguangmycin, bacteriophage, matrine, rotification, and green milk. A fungicide such as copper. The pest control insecticides such as Qiqisu, Aweidiqing, Bt emulsion, imidacloprid, and Paulian are used.
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