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Method for slowly releasing pest sex pheromones by using sustained release agent and carrier double-sustained release technology

A double-sustained-release technology of sex pheromones of pear borer worm, applied in botany equipment and methods, chemicals for biological control, applications, etc., can solve the problems of inability to effectively control pests, low release of sex pheromones, Prevention and treatment of effects such as discounts, to achieve the effect of saving the cost of the original drug, less dosage, and simple and easy to use methods

Inactive Publication Date: 2019-06-14
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, chemical pesticides have been the main method of controlling pear borer moths in agricultural production, but their drug resistance has developed rapidly, which has greatly reduced the control effect. At the same time, the problem of chemical pesticide residues has always troubled farmers.
Existing sex tropism products have a relatively short duration, and sometimes need to be used twice in one growing season of fruit trees, and the labor cost is relatively high
However, the release of sex pheromones is too low and cannot effectively control pests.
If excessive use of sex pheromones, although the control effect is guaranteed, the cost of the product is obviously high, which is not conducive to popularization and application

Method used

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  • Method for slowly releasing pest sex pheromones by using sustained release agent and carrier double-sustained release technology
  • Method for slowly releasing pest sex pheromones by using sustained release agent and carrier double-sustained release technology
  • Method for slowly releasing pest sex pheromones by using sustained release agent and carrier double-sustained release technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Put the sex pheromone component (200mg) of the pear borer worm into a 2mL open centrifuge tube, place it at room temperature for free release, record the change of the total weight every other week, continue to observe for four weeks, and calculate the concentration of the pear borer sex pheromone. Release amount, and through the labyrinthine test statistics persistence time and labyrinth rate (see Table 1).

[0015] Wherein: the pear borer sex pheromone is calculated by mass percentage: 89.9% of Z-8-dodecene-1-acetate, 6.9% of E-8-dodecene-1-acetate, Z-8-dodecen-1-ol 0.99%, the rest are other inactive ingredients.

[0016] Among them, the maze experimental design:

[0017] Choose an orchard in a certain city where peach trees and pear trees are mixed, plant 48 fruit trees per mu on average, and the trees are 9 years old. Select 50 mu as the pheromone misdirection treatment area, and the other 10 mu as the routine control control area. In the fascination area, arrang...

Embodiment 2

[0022] Mix the sex pheromone component (200mg) of Example 1 pear borer moth with corn oil at a weight ratio of 1:1, and then put it into an open centrifuge tube. Place at room temperature, record the change of the total weight every other week, continue to observe for four weeks, calculate the release amount of the pear borer sex pheromone, and count the duration of effect and the tropism rate by the tropism test (see Table 1),

Embodiment 3

[0024] Other conditions were the same as in Example 2, except that the weight ratio of the sex pheromone component (200 mg) of the pear borer moth and corn oil was changed to 1:3 for mixing, and then packed into an open centrifuge tube. Place at room temperature, record the change of the total weight every other week, continue to observe for four weeks, calculate the release amount of the sex pheromone of the pear borer, and count the persistence time and the tropism rate through the tropism test (see Table 1).

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Abstract

The invention discloses a method for slowly releasing pest sex pheromones by using a sustained release agent and carrier double-sustained release technology. The method is used for biologically controlling fruit tree pest Grapholitha molesta Busck. Grapholitha molesta Busck sex pheromones are mixed with a sustained release agent to prepare a sex pheromone solution, and a plastic tube is selected as a sex pheromone release carrier to obtain a Grapholitha molesta Busck sex attractant. The double-sustained release sex attractant can realize the sustained release of the sex pheromones, and solvesthe problems of short persistent period, too fast release of pheromone components, and unsatisfactory control effect brought by too low pheromone release amount of Grapholitha molesta Busck sex attractants on the current market.

Description

technical field [0001] The invention relates to a slow-release technology for the sex pheromone of the small pear borer, and belongs to the field of biological control of the fruit tree pest, the small pear borer. Background technique [0002] The small pear borer has become the main pest that endangers the main pear and peach production areas in my country, seriously affecting the quality of the fruit and the yield of the pear fruit. For a long time, chemical pesticides have been the main method of controlling pear borer moth in agricultural production, but its drug resistance develops rapidly, which greatly reduces the control effect. At the same time, the problem of chemical pesticide residues has always troubled farmers. In recent years, sex pheromone technology has shown good application effects in monitoring and controlling pear borer moth. Insect sex pheromones are chemical substances produced by insects and released outside the body that can lure or arouse insects o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N37/02A01N31/02A01N25/18A01N25/10A01P19/00
Inventor 何佳怡夏冉陈珂吴林盛胡曦文金欣雨李媛邱琳陈新
Owner CHANGZHOU UNIV
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