How to control corn aphids?

What harm does corn aphid have? How to control corn aphids? Please help introduce netizens The harm of corn aphid: corn aphid, mainly harm corn, sorghum, wheat, millet and other crops, into, nymph piercing plant juice, seedling aphid cluster in the back of the leaves and heart leaves caused harm, light caused by poor growth of corn, serious damage, plant growth stagnation, or even dead seedlings. In addition, it can also spread maize dwarf mosaic virus, resulting in different degrees of yield reduction. Corn aphid control methods: method 1 protection aphid natural enemy method: Pay attention to avoid chemical control or choose harmless pesticides for natural enemies when the number of ladybugs, aphids and chrysoppers among weeds in corn seedling stage is large. Method 2: Using chemical control method: It is mainly necessary to control aphids before they bloom: 1. Spray, 10- 15g of 10% imidacloprid wettable powder per 667 square meters, add 30kg of water;2. Apply in root zone, 100- 150ml of 40% phoxim emulsifiable concentrate per 667 square meters, mix with 10- 15kg of fine soil, and bury in furrows around the root zone of corn aphids at the initial stage. Click for more corn growing technology Click for more food crop growing technology