Sorghum aphids are generally colony on the back of leaves, mostly in the lower part of the plant, and gradually spread to the middle, upper or panicles. If the conditions are right, there will be an embarrassing situation in the short term. 1.40% Dimethoate EC 50 grams per acre, fine soil 10 kg sprinkled on the plants, or 1500 ~ 2000 times liquid spray. 2.1.5% Dimethoate powder sprays 1 to 1.5 kg per acre. 3.50% Isopropyl Phosphorus EC 50 grams per acre mixed fine soil 10 kg, every 5 to 6 lines evenly spread 1 line. This method has little effect on natural enemies and has a good effect. The drug is highly toxic and should be taken care of safely. 4.1.5% 1605 powder sprayed 2 kg per mu. 5.40% omethoate EC 1500 to 2000 times liquid spray. 6.20% of Pyrethroids EC is sprayed with 15-20 grams of water per mu and 50-60 kg of water. 7.2.5% deltamethrin EC is sprayed with 20-40 grams of water per mu and 50-60 kg of water. 8.20% methionin EC can be added to 20 grams of water per mu, and 50 to 60 kg of water can be sprayed. Sorghum is very sensitive to many kinds of drugs such as 666, trichlorfon, dichlorvos, lime sulfur, and camphor pine. Pay more attention when spraying so as not to cause phytotoxicity.
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