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Method for preventing and controlling warehouse callosobruchus chinensis by using low temperature

A technology for storing mung beans and mung beans, which is applied in the fields of application, seed and rhizome treatment, agriculture, etc., can solve the problems of loss, secondary damage, pesticide residues, etc., and achieve the effects of safe use, strong operability, and simple method.

Inactive Publication Date: 2013-10-23
INST OF FOOD CROPS HUBEI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In one generation of mung bean weevil, it can cause a loss of more than 30% of the output of stored mung beans. After adult emergence, they continue to lay eggs on mung beans, causing secondary damage. In severe cases, the entire warehouse of mung beans can be damaged and the loss is heavy
Currently, aluminum phosphide fumigation is the main method for preventing and controlling the damage of mung bean weevils in production. However, the long-term use of aluminum phosphide can easily increase the resistance of pests rapidly, resulting in a sharp increase in the amount of pesticides when pests reoccur (Valmas and Ebert, 2006). , which not only increases the cost of mung bean storage, but also easily leads to pesticide residues, causing food pollution and affecting the health of eaters

Method used

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  • Method for preventing and controlling warehouse callosobruchus chinensis by using low temperature

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Low temperature control storage mung bean elephant test, the steps are as follows:

[0017] (1) Determination of the ability of the four stages of mung bean weevil to tolerate low temperature at a certain low temperature: When testing the cold resistance of different stages of mung bean weevil, the temperature of -5 ℃ was selected as the test temperature. At -5 ℃, the treatment times for the four stages were 4, 8, 16, 32, 64, 128, and 256 h.

[0018] The breeding conditions of mung bean elephant: temperature (30±1) ℃, relative humidity (70±5) %, 24 h total darkness. Whole mung beans with a water content of (14±2)% and frozen at -20°C to disinfect and kill insects were used as feed for feeding;

[0019] Insect stage selection: Mung beans on the 2nd to 3rd day after being laid eggs were used as eggs, mung beans on the 12th to 13th day were used as larvae, mung beans on the 18th to 19th day were used as pupae, and adults within 2 days after eclosion were used as experimen...

Embodiment 2

[0031] Example 2: Using low temperature to prevent and control mung bean weevil in storage, mung bean seeds or commodities were stored at 0°C for 2 days; the mortality rate of the tested insects was 15.1%.

Embodiment 3

[0032] Example 3: Utilizing low temperature to prevent and control mung bean weevil in storage, mung bean seeds or commodities were stored at -5°C for 2 days; the mortality rate of the tested insects was 51%.

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PUM

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Abstract

The invention discloses a method for preventing and controlling warehouse callosobruchus chinensis by using a low temperature. The method comprises the following steps of: (1) storing mung bean seeds or a commodity for 24 to 48 hours at the temperature between 0 and 5 DEG C below zero; and (2) treating the mung bean seeds or the commodity treated in the (1) for 2 to 4 hours at the temperature between 15 DEG C below zero and 20 DEG C below zero. The method capable of preventing and controlling the warehouse callosobruchus chinensis by using the low temperature has important guidance value and theoretical significance for ensuring food safety, promoting green grain storage and the like.

Description

technical field [0001] The invention relates to a method for controlling storage mung bean weevil by using low temperature, and belongs to the field of physical control of agricultural pests. Background technique [0002] green beans( Vigna radiata (L.) Wilczek) is an important edible bean crop, rich in protein, vitamins, minerals and other nutrients, and has medicinal effects. The most serious pest during its storage is the mung bean weevil ( Callosobruchus chinensis L.). The weight, nutritional value and germination rate of mung beans are seriously reduced after being damaged by mung bean elephants in the warehouse. In one generation of the mung bean weevil, it can cause a loss of more than 30% of the output of stored mung beans. After the adults emerge, they continue to lay eggs on the mung beans, causing secondary damage. In severe cases, the entire warehouse of mung beans can be damaged and the loss is heavy. Currently, aluminum phosphide fumigation is the main meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C1/00
Inventor 万正煌仲建锋李莉刘良军陈宏伟伍广洪
Owner INST OF FOOD CROPS HUBEI ACAD OF AGRI SCI
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