Imidacloprid and avermectin are two major insecticides in China. Due to homogenization of products, overcapacity and foreign patent products represented by Kangkuan, the imidacloprid enterprises are struggling. The situation has been more serious since. There are more than 30 original pharmaceutical companies with three imidacloprid certificates, and only five are currently in normal production. The domestic raw drug yield of avermectin is about 3,600 tons, while the actual demand is only 2,800 tons. The slow-moving of the product caused the price of avermectin powder to drop from the previous 700 yuan/kg to 500 yuan/kg, a drop of 28.6%. The main production companies of imidacloprid Red Sun Group, Sanonda shares, Jiangsu Changqing agrochemical performance also showed varying degrees of decline. Imidacloprid is a high-efficiency insecticide of nicotine. It has broad-spectrum, high-efficiency, low toxicity, low residue, pests are not easy to produce resistance, and it is safe for humans, animals, plants and natural enemies. It has contact, stomach poison and systemic absorption. Wait for multiple effects. After the pests are exposed to the agent, the normal conduction of the central nervous system is blocked, causing paralysis to die. The product has good quick-acting effect, and has high control effect 1 day after the medicine, and the residual period is as long as about 25 days. The drug effect and temperature are positively correlated, the temperature is high, and the insecticidal effect is good. Mainly used to control sucking mouthparts pests. It is mainly used to control sucking mouthparts pests such as aphids, planthoppers, whiteflies, leafhoppers and thrips; certain pests of coleoptera, diptera and lepidoptera, such as rice weevil and rice negative mudworm Rice locusts, leaf miners, etc. are also effective. But not effective against nematodes and red spiders. Can be used in rice, wheat, corn, cotton, potatoes, vegetables, beets, fruit trees and other crops. Due to its excellent systemic properties, it is particularly suitable for application by seed treatment and granulation. Generally, the active ingredient is 3~10 grams, sprayed with water or seeded. The safety interval is 20 days. Pay attention to the protection when applying the medicine, prevent contact with the skin and inhaled powder, liquid medicine, and wash the exposed parts with water in time. Do not mix with alkaline pesticides . It is not advisable to spray under strong sunlight to avoid reducing the efficacy. Control pests such as Spiraea japonica, apple mites, peach aphid, pear hibiscus, leaf roller moth, whitefly, and leafminer, spray with 10% imidacloprid 4000-6000 times, or spray with 5% imidacloprid EC 2000-3000 times . Prevention and control: You can choose Shennong 2.1% cockroach gel bait The continuous use in recent years has caused high resistance and has been banned in countries on rice. Avermectin is an insecticide, acaricide , and macrolide disaccharide compound for agricultural veterinary use. Abamectin has contact and stomach toxicity to insects and acarids and has a weak fumigating effect, and the lethal effect is slower. However, there is less residue on the surface of the plant. Touch, stomach poison, strong penetration. It is a macrolide disaccharide compound. It is a natural product isolated from soil microorganisms. It has a contact and stomach toxicity effect on insects and acarids, and has a weak fumigation effect, and has no systemic action. However, it has a strong osmotic effect on the leaves, which can kill the pests under the epidermis and has a long residual effect. It does not kill eggs. Its mechanism of action differs from that of general insecticides in that it interferes with neurophysiological activities and stimulates the release of r-aminobutyric acid, while r-aminobutyric acid inhibits the nerve conduction of arthropods, such as mites, mites and insects. The larvae appear paralyzed after contact with the agent, inactive and do not feed, and die after 2-4 days. It does not cause rapid dehydration of insects, so its lethal effect is slower. Although it has direct killing effect on predatory and parasitic natural enemies, it has less damage to beneficial insects due to less residual surface of plants. It has obvious effects on root-knot nematodes. More pesticide knowledge , please pay attention to China Pesticide Network Expanded Ptfe Tensile Strength,Expanded Ptfe Roll,Teadit Expanded Ptfe,Ptfe Lacing Cord Cixi Congfeng Fluorine Plastic Co.,Ltd , https://www.cfptfeseal.com