Aphids are the most common pests in vegetable cultivation and have the longest hazard. The harm of aphids to vegetables is not only to directly suck the plant juice, but also to excrete honeydew to induce coal pollution, affect leaf photosynthesis, and spread a variety of vegetable virus diseases. At present, the pesticides recommended by the Ministry of Agriculture to replace high-toxic pesticides against vegetable aphids are imidacloprid and acetamiprid.
The main dosage form of imidacloprid is 10% imidacloprid wettable powder, 5% imidacloprid emulsifiable concentrate and the like. Control vegetable aphids, use 10% imidacloprid wettable powder 10-20 grams per acre or 20-40 ml of 5% imidacloprid EC in the initial stage of aphids, and add 30-40 kg of water to spray.
The main dosage form of acetamiprid is 3% acetamiprid emulsifiable concentrate, 5% acetamiprid WP and the like. Control vegetable aphids, use 15 to 20 ml of 3% acetamiprid emulsifiable concentrate or 9 to 12 g of 5% acetamiprid WP in acre of the aphid, and add 30 kg of water to spray.

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