Wheat aphids occur severely in our city every year. In particular, the ear mites suck and suck after the wheat heading, and excrete the dense, which seriously affects the plant's breathing and photosynthesis. The damage of the panicle caused the wheat to be insufficiently filled, the grain dried up, and the 1000-grain weight decreased, causing serious yield reduction. As the temperature rises, the sorghum will rapidly expand and expand. According to the prevention and control situation of the scorpion in the city in recent years, the following opinions are proposed:

Control indicators: 500 heads

Control method:

First, agricultural measures: 1, early spring pressure, clear the weeds in the field 2, protect the use of natural enemies

Second, the chemical control: bifenthrin 40-50 g / mu or pymetrozine 10-15 g / a 40-40 kg spray with water.