How to control red spiders by planting mung beans?

How to control red spiders by planting mung beans? Please introduce the method that both adults and nymphs of mung bean red spiders can harm mung beans, spinning and netting on the back of mung bean leaves and sucking leaf juice with piercing mouthparts, the damaged bean leaves initially appear yellow-white spots, and then with the increase of red spiders, there are slightly red patches and a large number of red spiders latent, resulting in local or even all of the damaged leaves curling, scorching, yellowing or reddish brown, leaves falling off and even light culms. In severe cases, the whole plant dies. The mung bean red spider first harms the lower leaves of mung bean, and then gradually spreads to the middle and upper parts. There are many weeds or sparse plants in mung bean field, and the occurrence is more serious. The following methods can be taken for control: according to the occurrence characteristics of mung bean red spider in the field, the control should begin at the initial stage of its occurrence, and when it is found that the field red spider is in the point and piece occurrence stage, and the plant rate of mung bean leaf rolls reaches 10%, it should be sprayed for control. The best agent to control mung bean red spider is avermectins. 1.8% avermectin EC is recommended to spray 20-30 ml per mu, 48% chlorpyrifos EC 100 ml per mu, or 73% grams of mites 40-70 ml per mu. Spraying in the field should be carried out at 16: 00 in the afternoon and 19: 00 in the afternoon, with emphasis on the back of mung bean leaves. Spray should be uniform and thoughtful, the front and back of the leaves should be sprayed, in order to get a good control effect. Click to get more mung bean planting technology click to get more food crop planting technology