The flourishing period of pod beans is when the temperature is high and the rain is heavy. Insect pests occur seriously. If management does not keep up, the quality can be reduced and the yield can be reduced. The prevention and control measures should be based on agricultural control, with both physical and chemical control.

First, pods

Soybean meal is the larvae damage period from June to October every year. Adult phototaxis, eggs scattered in tender horns, flowers and petioles, the newly hatched larvae into the tender horn or flower feeding, resulting in flowers, horns off, older larvae into the beans feeding, damaged beans often caused after the rain rot. The larvae have the habit of nocturnal emission and backlighting. They hide in flower, beans, or leaves during the day and they excrete insect excrement to plug the boreholes. In addition to sporadic activities during the rainy days and daytime, they generally start crawling from the wormhole in the evening. Come out and stop to go out in the early morning of the next day.

Control measures: 1. Clear the falling corners of the field, and remove the wounded leaves and beans to reduce the source of insects. 2. Set up black light lamps, use adult phototaxis habits, and seduce and kill. 3. The agent used 5% Ruijinte 2000 times solution, 40% fenvalerate 6000 times solution, 2.5% deltamethrin 3000 times solution, and sprayed once every 10 days.

Second, leaf miner

The larvae invade the leaves and damage them. The leaves of the larvae only leave the upper and lower epidermis to form a tortuous tunnel and affect plant growth. Leaf miners mainly damage peas, beans, cowpeas, cabbage, broccoli, cabbage, rapeseed, radish, lettuce, tomatoes, eggplant, and potatoes.

Control measures: 1. Use adult armyworm board to trap adult insects. 2. Adults lay their eggs on the back of the leaf, spraying the liquid on the back of the leaf. At the beginning of the larvae damage, insecticides with both internal absorption and contact toxicity were selected, such as 48% of Le Siben EC 800 to 1000 times, and sprayed continuously for 2 to 3 times.

Three, red spider

The red spider on the beans is also known as the bean leafhopper. The period from August to September is the peak period. When the young leaves are sucked into the leaves, they can be easily defoliated after being damaged. In the early stage of development, the leaves lose their green color and become red and white, and the thin wire mesh on the back of the leaf can directly recognize the range and area of ​​occurrence. Immediately after the occurrence of a pesticide spray ring sprayer, the scope of the scope of the accident is slightly greater than the scope, then the plants in the encircled circle thoroughly sprayed to prevent the spread of spider mites.

Control measures: 1. Pay attention to pest monitoring, and find that a small amount of damage should be promptly removed from the leaves and burned. In case of drought, timely irrigation and fertilization should be paid attention to, to promote plant growth and inhibit the proliferation of leafhoppers. 2. The use of selective acaricides for general treatment was carried out before the scab phase and after the soybean meal was harvested, with the focus on uniform spraying on the back of the leaves. Can be sprayed with 20% compound Liuyangmycin EC 1000 times, 1.8% avermectin EC 1500-2000 times, 15% Dailing EC 3000 times, 20% EC 2000 times, pay attention to rotation It advocates the use of highly effective and low-toxic biological pesticides.

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