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Screening method and application of a penetrating agent for the prevention and control of Chilo borer

A technology of penetrating agent and stem borer, which is applied in the field of pesticides, can solve the problems of high cost and achieve the effect of improving control effect, easy operation, and simple method

Active Publication Date: 2021-11-09
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are many types of adjuvants, and complex or direct control experiments will lead to high costs. How to use a simple screening method to screen adjuvants, and the screening results have a reliable correlation with the real results, is the key to be solved question

Method used

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  • Screening method and application of a penetrating agent for the prevention and control of Chilo borer
  • Screening method and application of a penetrating agent for the prevention and control of Chilo borer
  • Screening method and application of a penetrating agent for the prevention and control of Chilo borer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1 Rice stalk penetration rate method to screen penetration aids

[0018] 1. Preparation of Colored Penetrant Liquid

[0019] Use ultrapure water to prepare red ink and penetrant to be selected into a coloring solution. The final concentration of red ink is 1%, and the final concentration of different penetrants is 0.8% (the recommended concentration of most penetrants). Take an appropriate amount of prepared colored penetrant liquid in a 10ml centrifuge tube for later use.

[0020] 2. Install the measurement device

[0021] First, take the rice seedlings that have been cultivated for about 10 days, cut off the 10cm long rice stalks, trim the rice leaves, and only keep the heart leaves, and wrap a circle of paper towels in the middle of the outer circle of the stalks (to prevent the coloring liquid from flowing down the outside of the stems), And put the stem base under the liquid surface of ultrapure water.

[0022] Then, place the prepared colored penetrant ...

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Abstract

The invention discloses a method for screening penetrants used for the prevention and control of Chilo borer. Colorants are added to different penetrant liquids with the same concentration, and the time for each penetrant to penetrate through a rice stem of a specific length is measured. The penetration effect of penetrant liquid is better than that of penetrant liquid with long penetration time. The method of the present invention is to screen the penetrant that has a synergistic effect on the medicament for preventing and treating the rice stem borer by measuring the penetrant's penetrating ability to the rice stem sheath, so as to obtain an auxiliary agent that has better penetrating ability on the rice leaf sheath and the heart leaf, for It is possible to improve the control effect of chemical agents on Chilo borer and reduce the dosage of chemical agents.

Description

technical field [0001] The invention relates to the field of pesticides, in particular to a screening method for a penetrant for preventing and controlling the rice borer and an application of the penetrant. Background technique [0002] Chlio suppressalis (walker) is an important pest of rice, and its larvae feed on stems. At present, chemical control is an important measure to control the stem borer, but the pesticide solution usually cannot penetrate into the pest damage inside the rice stem, resulting in waste of pesticide application and low control effect. In the prior art, the drug efficacy is usually improved by increasing the adhesion of the medicament on the plant surface, but this method has no effect on the borer larvae of Chilo suppressalis. Therefore, if some kind of adjuvant can be added to the control agent, the adjuvant can increase the dose of the chemical agent entering the habitat of the larvae of the rice stem borer (in the rice leaf sheath and heart le...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N25/30A01N41/02A01N43/90A01N57/30A01N57/16A01P7/04G01N33/15
CPCA01N25/30A01N41/02A01N43/90A01N57/16A01N57/30G01N33/15
Inventor 吴敏韩召军沈子涵黄水金
Owner NANJING AGRICULTURAL UNIVERSITY