Biological insecticide for preventing longicorn insect pest and preparation method thereof

Abstract

The invention discloses a biological insecticide for preventing the longicorn insect pest which can safely and effectively kill longicorn, has no drug resistance, and can avoid the environmental pollution as well as a preparation method of the biological insecticide. The biological insecticide for preventing the longicorn insect pest is prepared from the following components in parts by weight: 75to 85 parts of beauveria bassiana culture solution, 40 to 50 parts of 500-times diluted solution of azadirachtin solution, 2 to 4 parts of emulsifier, and 1 to 3 parts of absolute ethyl alcohol. Thepreparation method comprises the following step: uniformly mixing the beauveria bassiana culture solution, the 500-times diluted solution of azadirachtin solution, the emulsifier, and the absolute ethyl alcohol. The biological insecticide can be widely applied to the fruit tree pest insect prevention field.

Description

technical field [0001] The invention relates to a biopesticide for preventing and controlling beetle pests. In addition, the invention also relates to a preparation method of a biopesticide for controlling long beetle pests. Background technique [0002] Longitudinus is the general term for insects of the polyphagous suborder Cyperididae. It is the main pest in forestry production, crop cultivation and building timber, and it is also one of the main pests that harm orchards. Beetles have chewing mouthparts, strong palate, and strong gnawing ability. Adults gnaw on new branches, bark, branches, young fruits, and fruits. After being gnawed, strip-shaped scars will be left. Seriously, the bark of the branches is gnawed off, causing the fruit-bearing branches to break and die. And the adults will lay eggs in the gaps of the branches and in the bark. After the eggs hatch, the larvae will eat down along the xylem and pith and reach the roots, which can lead to poor plant growth,...

AI Technical Summary

Problems solved by technology

Seriously, the bark of the branches is gnawed off, causing the fruit-hanging branches to break and die

And the adults will lay eggs in the gaps of the branches and in the bark. After the eggs hatch, the larvae will eat down along the xylem and pith and reach the roots, which can lead to poor plant growth, premature tree vigor, and seriously affect the yield of fruits. In severe cases, the whole plant may die

Adults gnaw around and lay eggs, and larvae live inside trees, so it is difficult to control

At present, the main control method is chemical control. Although the killing rate is high and the control effect is good, it is easy to pollute the soil, air, and fruit, and the large amount of chemical residues affects the health of eating. At the same time, it is easy to make the beetle develop resistance

There is another method of trapping with bait wood, which requires planting bait wood, but the workload is heavy and the effect is not obvious