With the large-scale promotion of insect-resistant cotton, the amount of chemical insecticides used in cotton fields has been greatly reduced, and blind maggots, such as L. lucidum, have gradually risen as the main pests in cotton fields. In recent years, the cotton fields in our province have been severe. The period of damage is generally 6 Late in the month to mid-August. At present, the cotton production areas of our province have reached the critical period for the prevention and control of Lumbosacidae, and the majority of cotton farmers must choose their medicines and prevent them scientifically. Adults and nymphs sucked cotton sap from green-lipped nymphs, causing a large number of cotton buds to fall off, breaking the head leaves and branches. There was a small black spot on the victim's leaf. After 7-10 days, there was a crack or hole in the victim's place, and it became a broken leaf mad. The young bud was damaged and then changed from green to yellow, from yellow to black, falling off after 2-3 days; Zhang Weilei formed, and soon fell off; flower damage can not be normally open and fall off; young wounds wounds were water-stained black small spots, while the weight is rigid and fall off; the top of the heart or side of the heart damage is the formation of cotton broom. To effectively prevent and control Lumbosacosis, the following two points need to be done: First, choose a good agent and the appropriate dosage Due to the serious occurrence of cotton blind fields in our province throughout the year, there are many times of drug control, so it is necessary to pay attention to the rotation of various types of pesticides in order to prevent the emergence and development of drug resistance. Triflumacetamide is a new insecticidal active ingredient that is highly effective, rapid, and long-lasting and can effectively control resistance to nicotine, pyrethroid, organophosphorus, and carbamate pesticides. Sucking pests. Low toxicity to non-target arthropods is the preferred pest control agent. 50% water dispersible granules 3000-5000 times spray. Hexafluorourea: It is a new type of acylurea insecticide with high insecticidal activity, broad insecticidal spectrum, strong knockdown, and quick response. Hexaflubenzuron is highly effective against young nymphs of the green cricket, and is sprayed with 5% EC at 1000-1500 times before egg hatching and nymph damage. Emamectin benzoate: a low-toxicity microbe-derived insecticide with high activity, broad insecticidal spectrum, good compatibility, long duration, and safe use. Its mode of action is stomach toxicity. Mainly, both contact and killing. Emamectin benzoate can be used to control 20% EC 2000-3000 sprays when it is used to control cotton green locust in cotton fields. Imidacloprid: It is a neonicotinoid insecticide. It has broad-spectrum, high-efficiency, low-toxicity, low-residue, safe to humans, animals, plants, and natural enemies. It also has multiple effects such as contact, stomach poisoning, and systemic absorption. The systemic absorption is mainly transmitted from the roots to the plants. . Seedlings can be treated with seed dressing 70% seed dressing treatment, can also be used such as emulsifiable concentrate spraying method. Such as 10% wettable powder 1000-1500 times spray. Pyripidone: A pyridine insecticide, it is a brand-new non-biocidal insecticide, and its mode of action is very unique. When the sucking insect pests come into contact with pymetrozine, they produce a pin-needle obstruction effect, stop feeding, and finally Hunger is deadly, and for this reason, pymetrozine kills insects slower. Pymetrozine has a contact-killing effect against sucking pests, as well as systemic absorption activity. The drug is low-toxic, and it is safe for certain important natural enemies or beneficial insects, such as seven-spot ladybugs, grasshoppers, spiders, and other beneficial insects. When controlling the green loquat, you can choose 50% wettable powder 2000-3000 times spray. Second, master the science of pesticide application 1. When spraying, spray must be sprayed. This is because some medicaments have poor systemic absorption. Yancheng Rongtai Labware Co.,Ltd , https://www.rongtailab.com