The melon larvae mainly harm the cucumber, melon, loofah, bitter gourd and other cucurbitaceae vegetables and the leaves of eggplant, tomato and potato. In severe cases, only the veins are left, and the fruit and stem vines can be invaded. After the 3rd instar, the melon is hidden in the young leaves, young shoots or into the melon for feeding.
Before the 3rd instar larvae, 10% cypermethrin 1000 times solution, 2.5% cypermethrin EC 2000-4000 times solution, bt emulsifiable concentrate 500 times solution, 0.3% Baicao No. 800-1000 times solution, 25% insecticidal double water agent 500 times liquid, 90% crystal trichlorfon 800-1000 times liquid, 52.25% agricultural land emulsifiable oil 800-1000 times liquid spray control.
Before the 3rd instar larvae, 10% cypermethrin 1000 times solution, 2.5% cypermethrin EC 2000-4000 times solution, bt emulsifiable concentrate 500 times solution, 0.3% Baicao No. 800-1000 times solution, 25% insecticidal double water agent 500 times liquid, 90% crystal trichlorfon 800-1000 times liquid, 52.25% agricultural land emulsifiable oil 800-1000 times liquid spray control.
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