Corn borer seriously harms the growth of corn, wheat, sorghum, and rice. How does corn borer? The study found that timely removal of weeds in the field can effectively control corn borers. If corn borers occur, how to prevent it? When is the most effective? 1. In the corn heart stage, when the rate of sorghum is 50%, and the amount of sputum in the stalk is more than 2000, the method of chemical control 1, 50% anti-èšœå¨ 3000 times solution, 2, 40% omethoate 1500 times solution, 3, 50% dichlorvos 1000 times liquid, 4, 2.5% of the enemy killed 3000 times the liquid evenly sprayed, can also use the above liquid medicine, The stem can also be coated with 40% omethoate 50-100 times solution. Second, when the number of corn glutinous rice is 4,000, and the rate of sorghum is more than 50%, the price control method 1, 10% imidacloprid wettable powder 1000 times 2, 20% Kangfu Duo concentrated solvent 8000 times, 3, 70% Emerald water dispersing agent 20000 ~ 25000 times, 0.36% green plant matrine water agent 500 times, 4, 10% beta-cypermethrin EC 2000 times, 2.5% cyhalothrin 2500 times, 5, 50% anti-Converse WP 2000 times. Tips: For the control of mites, you need to master the interval between different pesticides. If you want to know more about pesticides, please pay attention to China Pesticide Network.
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When is the most effective way to control corn borers?