Method for preventing and treating fall webworm larvae by spraying beauveria bassiana through plant protection machine

Abstract

The invention discloses a method for preventing and treating hyphantria cunea larvae by spraying beauveria bassiana on a plant protection machine, the hyphantria cunea larvae are third-generation hyphantria cunea larvae, and the method for preventing and treating hyphantria cunea larvae comprises the following steps: step 1, taking 300 grams of beauveria bassiana high sporopollen, adding the hyphantria bassiana high sporopollen into an oil phase of a beauveria bassiana dispersible oil suspending agent, uniformly stirring, filtering with gauze, and storing for later use; filtering to obtain filtrate; 2, 20-30 g of a bacterial preparation is added into the filtrate, and a mixed solution is obtained; step 3, adding clear water into the mixed solution obtained in the step 2; and 4, spraying is carried out by selecting a T20 plant protection unmanned aerial vehicle in Da Xinjiang as a carrier. The invention has the following advantages: 1, an insecticidal microorganism beauveria bassiana is adopted as a main component, and spores are dissolved in water and mixed with a bacterial preparation by using a spore dispersible oil suspending agent technology, so that the problem that a chemical agent is not environment-friendly is avoided; the plant protection unmanned aerial vehicle is high in spraying efficiency and labor-saving, the distance between the plant protection unmanned aerial vehicle and a tree crown is large, collision accidents are avoided, and pesticide application safety is guaranteed.

Description

technical field [0001] The invention relates to the technical field of preventing and treating white moth, specifically a method for plant protection machine spraying Beauveria bassiana to prevent and control white moth larvae. Background technique [0002] At present, UAVs are usually used to spray 1.8% abamectin EC and 1.0% abamectin respectively at a distance of 2.5-3.5 meters from the top of the canopy and at a flight speed of 1.5-3 m / s in the control method of American white moth. Bacterine benzoate EC is effective in controlling white moth. Although the application effect is good, the agent has a great impact on non-targets and the drone is too close to the tree crown, which is prone to accidents. Some use artificial backpack sprayers for spraying , this method is relatively laborious and uneven, and the onset of Beauveria bassiana alone is slow. Contents of the invention [0003] The technical problem to be solved in the present invention is the technical problem d...

AI Technical Summary

Problems solved by technology

[0002] At present, UAVs are usually used to spray 1.8% abamectin EC and 1.0% abamectin respectively at a distance of 2.5-3.5 meters from the top of the canopy and at a flight speed of 1.5-3 m / s in the control method of American white moth. Bacterine benzoate EC is effective in controlling white moth. Although the application effect is good, the agent has a great impact on non-targets and the drone is too close to the tree crown, which is prone to accidents. Some use artificial backpack sprayers for spraying , this method is laborious and uneven, and the effect of Beauveria bassiana alone is slow