How to control the corn leaf moth.

Two o'clock, to be exact. The prevention and control methods mainly include:

1, ridging control. Remove wheat orange accumulated in corn root, improve ventilation and light transmission conditions of corn roots, and eliminate that habitat environment of Spodoptera litura.

2. Poison bait control. Use 150ml of 48% chlorpyrifos emulsifiable concentrate or 200ml of 30% acephate emulsifiable concentrate +200ml of 80% dichlorvos emulsifiable concentrate +4kg of chopped Chinese cabbage leaves (or weeds)+10kg of fried wheat bran, add water until it can be held into a ball, and place a small pile along the ridge in the evening (3.

3. Prevention and control of toxic soil. The toxic soil made of methyl isofenphos EC and chlorpyrifos EC according to the ratio of 1: 100 (medicine: soil) should be evenly spread around the roots of corn after ridge cleaning, but a certain distance should be kept from the corn seedlings.

4. Root irrigation control. 1500 times of methyl isofenphos emulsion, remove the sprayer nozzle, and directly aim the spray rod at the base of corn to directly poison the mature larvae.

5. Combined water irrigation. The plots that need to be watered can be prevented by whole field irrigation. Use 40% phoxim EC 1250ml+48% chlorpyrifos EC 250ml per mu, and irrigate the field with water by ridge head drip irrigation.

When controlling Spodoptera litura in corn fields sprayed with herbicides, if organophosphorus pesticides are used, the interval should be more than 7 days to prevent phytotoxicity.