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Prevention and control are mainly based on chemical control. According to the characteristics that the mites are born in the heart leaves and back folds, the spraying should be meticulous and thoughtful, and use the medicines with the three functions of contact, internal suction and fumigation. In the stage of field plotting, prevention and control were strengthened. Applicable agents: 50% anti-inferiority WP 1500 ~ 2000 times liquid, this agent has special effects on aphids, and is safe for bee stings and flies; 2.5% Uranus EC 3000 times, 21% killing 800 ~ 1000 times liquid, 50% phoxim EC 800 ~ 1000 times, Kangfu more solvent 7000 ~ 8000 times, the effect is satisfactory, 20 days after the drug control efficiency is still up to 85% or more; 70% Amy music Water dispersant 20000～25000 times liquid, 12.5% ​​Binglin solvent 2500～3000 times liquid, drug interval interval mastered in 20～25 days; 10% high efficiency eradicating 2000 times liquid, 20% Mobilan 4000 ~ 5000 times liquid, 0.36% Bai Cao No. 1 1000 ~ 1200 times liquid, medication interval of about 10 days.
The prevention of cotton aphid
Cotton aphids cluster harm to the leaves and buds of host plants such as cotton and vegetables, causing leaf atrophy, malformation, growth decline, or premature death. Compared with other aphids, cotton aphid prefers a high-temperature and dry environment, which takes more weight in greenhouse vegetables than in exposed vegetables and occurs in large quantities. Moreover, cotton aphids are more resistant to pharmaceuticals than other aphids. The body color of cotton aphid changes a lot and is generally dark green.