The onion thrips are bred by adults and nymphs. They suck the juice of the crops with a sucking mouthpart. After sucking green onion leaves, they produce 1-2 mm gray or yellow-brown markings. When they are severe, the stripes are concatenated and the onion leaves are distorted and brown. Affect the growth of green onions. Onion thrips occur 8-10 generations a year, adults are active, can use the wind to spread, fear of light, mainly to eat sooner or later, mostly in the shade and leafhoppers feeding damage. The suitable temperature for its occurrence on green onions is 23-28°C and relative humidity 40%-70%. Control methods for onion thrips are: 1, clean the garden in a timely manner to remove the dead leaves and surrounding weeds in the field, concentrated burning, reducing the number of insects. 2. Strengthen the management of fertilizer and water. The heavy land is heavy. Therefore, it should be watered in high temperature season. High temperature and high humidity are not conducive to its damage. 3, chemical control can be used 10% imidacloprid 1500 times, 5% acetamiprid 1000 times, 50% phoxim EC 1500 times, 1.8% avermectin 2000 times or 4.5% beta cypermethrin EC 1000 times Spray control. Because the green onion leaves are relatively smooth, appropriate additives or neutral laundry detergent may be added during spraying to enhance the adhesion of the liquid and improve the spraying effect. Note alternate medication. Logo Customization Mask,Logo Customized Mask,Disposable Non-Woven Mask,Non Medical Disposable Mask Puyang Degren Medical Equipment Co., Ltd. , https://www.degrenyuwei.com