Biological control method for bursaphelenchus?xylophilus

Abstract

The invention discloses a biological control method for bursaphelenchus?xylophilus. The biological control method comprises the following steps: firstly, taking a manually set device for trapping dastarcus helophoroide eggs to collect eggs of dastarcus helophoroides so as to obtain egg cards; placing part of the egg cards in a culture box, and performing cultivation to obtain chrysalises; and after the chrysalises emerge into bursaphelenchus xylophilus imagoes in 20-30 days, collecting the imagoes into a container to obtain imagoes. Pine disease wood piles are arranged in each bursaphelenchus xylophilus affected area, the egg cards or imagoes are put into the pine disease wood piles in March and April every year and the pine disease wood piles are enwrapped by an isolation material for isolation. Compared with the prior art, according to the biological control method disclosed by the invention, epidemic situations are controlled on the spot, and an affected area is changed into a place for naturally breeding dastarcus helophoroides, so that the labor intensity of epidemic prevention is greatly reduced, the epidemic prevention efficiency is improved, the epidemic prevention effect can be ensured for many years after the residence of the dastarcus helophoroides, and the biological control method is suitable for controlling bursaphelenchus xylophilus in mountain woods and forests.

Description

technical field [0001] The invention relates to the field of biological control, in particular to a biological control method suitable for mountain wood and forest pine thread disease. Background technique [0002] A forest is a biological community with trees as the main body. It is a totality of ecosystems formed by the interdependence and mutual restriction between concentrated trees, other plants, animals, microorganisms and soil, and the interaction with the environment. Forests are rich in species, complex in structure and diverse in function, which are of great significance to human survival and are known as the "lungs of the earth". There are many pine trees in the subtropical regions of my country. Pine wood nematode is a destructive epidemic of pine trees. When it occurs, pine forests are often damaged continuously and die in patches. Serious damage to the ecological balance. Since pine forests are mostly distributed in high mountains and tall pine trees, once pes...

AI Technical Summary

Problems solved by technology

This patent utilizes natural enemy insects to control pests, and can control monochamus and pine wood nematode diseases under the premise of not polluting the environment, maintaining ecological balance and maintaining biodiversity, but the parasitic rate of monochamus is low (56.3%) ), the eggs or adults of the velvet beetle are directly released on the damaged plants, and the damaged plants are not isolated from the healthy plants, so the control effect is poor

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