Trunk injection agent for preventing and controlling pine wood nematode disease and monochamus alternatus

Abstract

The invention discloses a trunk injection agent for preventing and controlling pine wood nematode disease and monochamus alternatus. The trunk injection agent is prepared from the following componentsin percentage by mass: 1-12% of fluopyram, 1-12% of imidacloprid, 1-3% of ethylene glycol monoundecyl ether, 1-10% of diethylene glycol monobutyl ether, 30-80% of dimethyl sulfoxide and 20-40% of ethyl acetate. Fluopyram has a systemic conduction function, can spread all over a tree body in a short time, efficiently kills pine wood nematodes invading pine trees, and protects the pine trees from being damaged by pine wood nematode diseases; ethylene glycol monoundecyl ether is monochamus alternatus aggregation pheromone, and can attract monochamus alternatus adults to be aggregated under the combined action of monochamus alternatus aggregation pheromone and pine volatile matter, and the monochamus alternatus adults are killed in a centralized mode in cooperation with imidacloprid; and diethylene glycol monobutyl ether, dimethyl sulfoxide and ethyl acetate are used as auxiliaries, all the components can be mutually dissolved, rosin secreted by a pine trunk injection wound is prevented from being oxidized and caked to block conveying of effective components, and efficient conduction of a trunk injection agent in a tree body is promoted.

Description

technical field [0001] The invention relates to a desiccating agent for preventing and controlling pine wood nematode and monochamus alternatus, belonging to the technical field of pesticide compounding. Background technique [0002] Pine wood nematode ( Bursaphelenehus xylophilius ), also known as pine wilt disease, is a destructive epidemic disease of pine forests. It has the characteristics of rapid spread, difficult control, rapid onset, and severe damage. In my country, pine wood nematode disease is mainly caused by Monochamus alternatus ( Monochamus alternatus ) adults carry B. xylophilus and spread diseases through activities such as feeding, supplementing nutrition and laying eggs. The pine xylophilus that invades the pine tree reproduces and moves in the tree, the number grows rapidly and in large numbers, and gradually distributes to the whole tree, secretes cellulase and other toxic substances, destroys the parenchyma cells and epithelial cells of the resin duc...

AI Technical Summary

Problems solved by technology

However, in southern China, such as Fujian, Guangdong, etc., due to the high annual average temperature and the strong secretion of masson pine pine resin, when using emamectin emamectin emamectin emulsifiable concentrate as a dry injection, the injection hole of the injector will be blocked. The phenomenon that the pine resin is blocked and the liquid cannot be injected into the tree occurs, so that the active ingredients cannot enter the tree trunk smoothly, resulting in the inability of the dried medicinal liquid to fully exert the medicinal effect, and the ideal control effect cannot be achieved

[0005] At present, in the commonly used pesticides for the control of pine wood nematode disease, the active ingredients are mostly non-systemic compounds, which cannot be efficiently transmitted inside the trunk; and the commercially available desiccants for the control of pine wood nematode disease are not miscible with pine resin. Blockage is prone to occur during the injection process, which affects the conduction of the line killing compound and cannot fully inject the preventive effect of the desiccant

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