1, the production of poisonous grains, poisonous bait with 40% Rogaine emulsifiable concentrate or 90% crystal trichlorfon 0.7 kg, plus 50 liters of water, mixed with 50 kg of bait fried into a paste incense (soybean cake, wheat bran, cottonseed cake, etc.). Dig a bowl-sized pit every 3-5 meters, put in a handful of bait and then cover it with soil, and use 30-45 kg of bait per hectare. You can also use 75 kilograms of bait per hectare and spread it in the evening on cornfields and surrounding areas. Agricultural measures, seed mixing and poisonous soil method:
①Precise plowing and harrowing to kill the source of insects, but also crop rotation or drought rotation.
②The adults set up a black light in the field to trap the adults.
③Seed mixing can be used 50% phoxim emulsifiable concentrate 500 ml, or 40% methyl isothion emulsifiable concentrate 500 ml, add 20 liters of water, mix 200 kg of corn seed, seedling retention rate of up to 80%. If the agent is mixed with seeds and then apply granules (40% of methyl isothionophos l, 100 water, 500 carrier ratio preparation, 625 kg per hectare and seed mixing), seedling protection effect can reach more than 98%.
2, seed mixing can also be used 40% Lecithin emulsifiable concentrate, or 50% methamidophos emulsifiable concentrate, or 50% parathion emulsifiable concentrate 7500 milliliters, 300 liters of water, mixing maize seed 50-300 kg. For poisonous soil method, use 40% methamidophos 1500 ml per hectare or 25% parathion slow-release agent 1500 ml per hectare, add 15 liters of water, spray and mix with 300 kg of fine moist soil, and sprinkle in corn rows when sowing. During the growing period, use 50% phoxim emulsion 3000-4500 ml per hectare, dilute it and apply it to water. It can also be sprayed with 1.5% Rogaine powder or 2,5% trichlorfon powder 30 kg per hectare to prevent and control.