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Application of aryloxy acetic acid and derivative thereof to crop insect control

A technology of aryloxycarboxylic acid and its derivatives, which can be used in application, insecticide, biocide, etc., can solve the problems of no application in production, and achieve the effects of effective pest control, increased sensitivity, and pest control

Active Publication Date: 2014-04-16
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is still little research in plant pest control, and there is no application in production.

Method used

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  • Application of aryloxy acetic acid and derivative thereof to crop insect control
  • Application of aryloxy acetic acid and derivative thereof to crop insect control
  • Application of aryloxy acetic acid and derivative thereof to crop insect control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: External treatment with aryloxycarboxylic acid and its derivatives can induce the release of rice volatiles

[0040] In this example, the aryloxycarboxylic acid derivative used was I-28 (Table 1). The rice volatiles of control, I-28 treatment, brown planthopper damage and brown planthopper damage plus I-28 treatment were measured indoors. The concentration of I-28 is 2mg / L, and the treatment method is to add I-28 to the rice nutrient solution to a final concentration of 2mg / L. Rice volatiles were captured 2 days after I-28 treatment. The capture and identification methods of volatiles refer to Lou Y, Ma B, Cheng J (2005) Attraction of the parasitoid Anagrus nilaparvatae Pang et Wang to rice volatiles induced by the rice brown planthopper Nilaparvata lugens Journal of Chemical Ecology, 31:2359-2374. The results showed that the exogenous application of I-28 could induce the release of rice volatiles: the total amount of volatiles was 1.39 times that of the ...

Embodiment 2

[0041] Embodiment 2: External application of aryloxycarboxylic acid and derivatives thereof can improve plant jasmonic acid and ethylene content

[0042] It has been mentioned in the background of the invention that signal molecules in plants, such as jasmonic acid and ethylene, play an active role in inducing resistance and can promote the production of plant defense substances. In this example, the aryloxycarboxylic acid derivative used was I-28 (Table 1). Used concentration is 2mg / L, and processing method is the same as embodiment 1. The results showed that I-28 treatment could significantly induce the content of endogenous JA after 24 hours, which increased by 46.7% compared with the control; at the same time, I-28 treatment also increased the content of jasmonic acid induced by feeding on C. The feeding induction of C. borer significantly increased by 33.7%. After I-28 treatment, the ethylene content increased significantly. After 12, 24, and 48 hours of I-28 treatment...

Embodiment 3

[0043] Example 3: External application of aryloxycarboxylic acid and its derivatives to induce resistance of rice to Chilo borer

[0044] In this example, the aryloxycarboxylic acid and its derivatives used are I-28 (Table 1). The concentration of I-28 adopted in the embodiment is 2mg / L, and the treatment method is the same as in Example 1. Nutrient solution was used as a control. A second-instar Chilo borer larvae of the same size and weighed were inserted into each treated or untreated rice stalk, stripped out after 10 days, weighed again, and repeated 60 times. Trypsin inhibitors (TrypPIs) are an important anti-insect substance synthesized by plants. The experiment also measured the TrypPIs content in plants after I-28 treatment for 3 days and the effect on TrypPIs produced by SSB feeding. See Zhou G, Qi J, Ren N, Cheng J, Erb M, Mao B, Lou Y(2009) Silencing OsHI-LOX makes rice more susceptible to chewing herbivores, but enhances resistance to a phloem feeder.Plant Journ...

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Abstract

The invention discloses application of an aryloxy acetic acid and derivative thereof to crop insect control, so as to protect plant from insect harms or control insect harms by using plant as an insect inducing plant. The aryloxy acetic acid and derivative thereof can be used in plant body, so that target plan generates systematic direct resistance to lepidoptera pests and systematic sensitivity to hemiptera pests, while indirect resistances of the plant to the two insects are enhanced.

Description

technical field [0001] The present invention relates to the field of inducing insect resistance or insect susceptibility of plants, specifically, relates to a method for inducing insect resistance or insect susceptibility of plants through a preparation containing aryloxycarboxylic acid and its derivatives. Background technique [0002] With the increase of the global population and the reduction of arable land, people's requirements for grain yield are getting higher and higher. The grain loss caused by insect pests accounts for about 10-30% of the total output, and there is no harvest in severe disaster years. Therefore, how to reduce insect pests to increase the total grain output is an urgent problem that people face. For example, on rice, the damage caused by the stem borer and the brown planthopper is huge. Chilo borer is one of the main pests of rice. Its larvae penetrate into the leaf sheath to cause damage, and then transfer to the stem, causing symptoms such as ri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N39/04A01N43/40A01P7/04
Inventor 娄永根吴军辛肇军蒋少杰宇兆男
Owner ZHEJIANG UNIV
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