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Poplar pest control method in Huaibei area
In the Huaibei region, with the increase of poplar pure forests year after year, the common pests of poplars also show an upward trend. According to investigations, the rate of poplars 2 to 3 years old is generally 30%, and the height is 80% or even higher. There is a potential risk of widespread outbreaks. The prevention and control methods include: 1. Strengthen the quarantine of trees and prohibit the afforestation with pests (eggs). 2. Select afforestation with strong resistance to insects, such as southern resistance to Yang, Zhonglin 2001, Zhonglin 2025, 107, 108, and 110, and try to create a mixed forest. 3, physical and mechanical control. Sang Tianniu has a strong phototaxis, which can be trapped and killed by black light during the night. Anoplophora glabripennis is active both at night and day and its phototaxis is not strong enough to capture the adults manually. Trunk whitening can be avoided to avoid spawning adult beetles. The whitening agent formula is lime:sulfur:water=16:2:40. In addition, light trapping, food trapping, trapping and trapping can effectively kill moths such as moths and beetles. Found Tian Long's eggs marks were broken with a hammer. During the winter season, the pests are repaired and the damaged trees are severely damaged. They should be removed as much as possible to eradicate hidden dangers. 4, chemical control. Pests from poplars can be eaten for a long time from May to September. Drug control can use high-pressure sprayers to increase the efficiency of spraying. Adult worms and eggs are sprayed with diflubenzuron, especially in the eclosion phase spraying 1000 ~ 1500 times diflubenzuron, can reduce the harmful effects of stem and leaf pests, insecticidal effect of more than 90%. Can also be used 90% dipterex crystal 800 times, 50% dichlorvos EC 800 times, 50% phoxim 1000 times spray, the effect is also very good. 5. Prevention and control of entry into xylem larvae. The poison fumigation and fumigation control is to insert poisonous tags made of organophosphorus pesticides such as zinc phosphide into the wormholes, which can be used to kill the hidden larvae. After inserting the wormholes into the wormholes, the remaining parts were broken and the mortises were sealed with wet mud. The prevention and control effect was as high as 95%, and the cost was low and the environment was not polluted. The use of systemic pesticides such as phoxim, monocrotophos, and omethoate to perforate or inject perforation into the roots or roots of tree trunks can solve the problem of tall trees and insect pests. It also has good insecticidal effects on small larvae and leaf-feeding pests. The effect of the larvae on the depth of the xylem is not obvious. 50-300 times of organophosphorus pesticides are used to dilute the injection of wormholes or use cotton larvae to plug into the depth of the wormholes as far as possible to kill the larvae of the calf. The insect tract of Anoplophora glabripennis is located above the invading hole and it is best to block it with cotton wool. Sangtianni should be injected from the bottom two new defecation holes, the effect can reach 90%. 6, biological control. Among insects, 20% of species are predatory insects, and 2.4% of species are parasites of other animals in vitro or in vivo. Therefore, predatory and parasitic insects can be used to control pests, such as the use of microbial bacteria to control large-bag moths and moths. , using woodpeckers to control Tianni and so on.