Method for improving repelling of tea trees to tea geometrid adults

Abstract

The invention discloses a method for improving repelling of tea trees to tea geometrid adults, and belongs to the technical field of green control of tea tree pests. The method comprises the following steps: firstly, establishing an experimental model for simulating plant-to-plant signal communication; then, selecting tea geometrid to induce volatile matters to enhance the repellency of adjacent tea trees to copulated female insects; using a Y-shaped tube olfactometer to measure the behavior reaction of the tea geometrid adult to tea volatile matters, and then collecting and analyzing the volatile matters; using a Y-shaped tube olfaction experiment for researching a behavior reaction of the tea geometrid adult with different sex and one day age before and after mating; and finally, carrying out a volatile compound exposure experiment. The repelling method provided by the invention further proves that the healthy tea tree has the capability of repelling the copulated female ectropis oblique prout, the plant-source volatile matters for providing the healthy tea tree to repelling the copulated female ectropis oblique prout are beta-ocimene and (E)-nerolidol, and the plant-source volatile matters serving as the exciting agent are (Z)-3-hexenol, linalool, alpha-farnesene and DMNT.

Description

technical field [0001] The invention belongs to the technical field of green prevention and control of tea tree pests, and relates to a volatile substance for avoiding tea tree pests and an application thereof. Background technique [0002] Tea originated in my country and is one of the most commonly consumed beverages in the world. Its consumption is second only to water and higher than coffee, beer, wine and carbonated drinks. Generally speaking, tea contains tea polyphenols, tea polysaccharides, caffeine, proteins, amino acids, vitamins, minerals and other nutritional and pharmacological components, which are the material basis for the biological activity of tea. substances, vitamins, amino acids and other nutrients, and can take in antioxidant active substances such as tea polyphenols, which have a comprehensive physiological regulation effect on the body. [0003] At present, the cultivation of tea is mainly in the south of the Yangtze River, which is the main producti...

AI Technical Summary

Problems solved by technology

However, the repeated use of chemical pesticides not only easily causes pesticide residues in tea leaves and pollutes the environment, kills a large number of natural enemies, thereby destroying the original ecological balance of the tea garden, but also makes target pests resistant to pesticides, which leads to the re-emergence of pests

The use of plant-derived pesticides such as matrine water to control tea inchworms can protect natural enemies, but the duration of the effect is short, requiring multiple sprays, and the control cost is too high

Viral preparations are restricted by certain temperature and humidity factors, and it is often difficult to achieve the expected effect in actual prevention and control

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