Chemical agent for controlling trunk damage by dendroctonus and preparation method thereof

Abstract

The invention discloses a chemical agent for controlling trunk damage by dendroctonus. The chemical agent is prepared by mixing the following components in parts by weight by stirring: 3-5 parts of verbenone, 12-17 parts of imidacloprid, 2-5 parts of omethoate, 1-8 parts of an emulsifying agent, 1-5 parts of a synergistic agent and 55-70 parts of a solvent. The chemical agent is a pollution-free agent, is non-toxic, pollution-free, stable in chemical properties and safe for humans and animals, has a very strong internally-absorbed insecticidal effect, can be absorbed into plants through stemsand leaves, can be transferred to unsprayed parts, and poisons the dendroctonus to cause death, and the effect of a mixed chemical agent is significantly better than the using effect of a single chemical agent; when the chemical agent is used for controlling the trunk damage by the dendroctonus, the chemical agent has very ideal environmental compatibility, avoids pollution to the environment andinfluence of the geographical environment on the control effect, has an obvious effect of repelling the dendroctonus, not only can repel the dendroctonus on a damaged tree, but also can prevent invasion of the dendroctonus into healthy pinus armandi.

Description

technical field [0001] The invention relates to an insecticide and a preparation method thereof, in particular to a dry injection agent for preventing and controlling beetles and a preparation method thereof, and belongs to the field of plant protection. Background technique [0002] Huashan pine is one of the unique tree species in my country's forest ecosystem. It is widely distributed in Shaanxi, Sichuan, Gansu, Henan and other places in my country. It is mainly distributed in the middle mountain area of ​​the Qinba forest area at an altitude of 1600-2200m. It is the main forest tree species in this area. , has a strong water conservation, environmental purification, soil and water conservation, prevent sand and other ecological functions. The Huashan pine beetle is a pest in the pioneer forest of Huashan pine in the Qinling forest area. It mainly invades the healthy Huashan pine for more than 30 years and causes a large number of deaths. It has caused great damage to the ...

AI Technical Summary

Problems solved by technology

[0003] In recent years, chemical control, biological control and pheromone application have been mainly adopted around the Huashan pine beetle. Chemical control usually chooses emamectin benzoate, omethoate, dichlorvos, imidacloprid and dinotefuran, etc. The method is to mix a variety of pesticides to enhance the control effect. Sometimes it is necessary to plan the bark and spray or cut the damaged wood and then spray the bark. It is limited by the climate and geographical factors in the area where the Huashan pine beetle occurs. There are many disadvantages in chemical spraying, which not only consumes a lot of manpower and material resources, but also pollutes the environment. At the same time, the environment will also have a huge impact on the control; biological control is to choose to spray Beauveria bassiana, Metarhizium anisopliae, etc. , but need to carry facilities for spraying, it is extremely inconvenient to carry in the mountain forest environment, and the efficiency is low, once it rains, the Beauveria bassiana sprayed on the trunk will be washed away by the rain, and it will not work at all; pheromone At present, methods such as trapping with attractants and isolation with repellants are widely used, but the number of bark beetles cannot be completely controlled by attracting and preventing, so the damage in the affected area is still serious.

Therefore, any single prevention and treatment is not obviously effective at present, and it is necessary to use high-efficiency agents to implement comprehensive prevention and control in combination with the actual situation in the prevention and control area.