Whitefly, commonly known as the white moth, is a serious threat to spicy sweet peppers and other eggplants, melons, and beans. The adult colony sucks sap from the back of the leaf and secretes honeydew to induce mildew disease. The victim's leaf turns green and yellow, causing the plant to grow weak and even wilting to death. It can also infect certain virus diseases. Prevention and control of whitefly should be planned and implemented earlier, with emphasis on prevention and adopting comprehensive measures to minimize the occurrence of hazards. 1. Agricultural control 1 Cultivation of insect-free seedlings is a key prevention and control measure. Before nursery, weeds should be removed from indoor and outdoor nursery sheds, and the remaining adults should be smoked with pesticides to avoid seedlings in the greenhouse with whitefly. In the breeding nursery room air outlet hanging pest network, can prevent the outside adults from moving in. At the same time, yellow plates coated with organic oil were hung on the bed to trap and kill the whitefly. 2 Reasonable layout, clean up the field environment, prevent whitefly parasitism and spread to each other. Avoid mixing with melons, beans, and tomatoes to prevent transmission. At the same time, weeds should be removed from the field to avoid parasitic eggs and nymphs. 3 Remove old leaves with insects and incinerate them. 2, after the emergence of biological control whitefly, can release the larva wasp "black wolfberry", once every 10 days, a total of 3 to 4 times, can effectively control the occurrence of whitefly. 3, physical control 1 detergent powder. Washing powder has a strong contact effect on the pests. The detergent solution can relieve the waxy layer of the surface of the whitefly and infiltrate into the insect body, blocking the pores of the insect's body surface and causing it to suffocate. The dosage is 600-800 times. 2 yellow traps. According to the characteristics of strong yellowing of greenhouse whitefly adults, a yellow cardboard can be used to coat sticky oil, petrolatum oil or other adhesives, and the insects are stuck when they fly. This method is very effective in controlling adult insects. 4. Chemical control It is of utmost importance to spray the drug when the whitefly occurs early and when the density is low. 1 Aerosol method: When the whitefly occurrence in the shed is heavy, use 0.5% of the 22% dichlorvos smoke agent per mu. Close the smoke in the protected area before the end of the evening and kill the adult insects. You can also sprinkle 80% dichlorvos on the sawdust. Use 0.3 to 0.4 kg per acre, then pack it into small packets with old newspapers, and light it in a closed shed to blow out the open fire and smoke. 2 spray method: 25% bufalin or rice bran net wettable powder 1000 to 1300 times, or 1.8% etopo EC 1600 to 2000 times, or 10% imidacloprid WP 1000 to 1200 times, or 40 % Dimethoate EC 1000 times, or vegetable worms net 1500 times, etc. are all valid. We're professional Others Gynecology Surgery manufacturers and suppliers in China, specialized in providing high quality medical instruments with reasonable price. We warmly welcome you to buy or wholesale bulk Others Gynecology Surgery for sale here and get quotation from our factory. Gynecology Forceps,Uterine Biopsy Forceps,Gynecology Suture Needle,Gynecology Surgery Instruments Tonglu WANHE Medical Instrument Co., Ltd , https://www.tlvanhurhealth.com