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Application of benzofuran compounds in stimulating crops to induce insect resistance

A technology of benzofuran and compound is applied in the application field of benzofuran compound in stimulating crops to induce insect resistance, can solve problems such as no application in production, and achieve the effect of effective pest control and pest control

Active Publication Date: 2017-05-31
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 benzofuran compounds in stimulating crops to induce insect resistance
  • Application of benzofuran compounds in stimulating crops to induce insect resistance
  • Application of benzofuran compounds in stimulating crops to induce insect resistance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Absorption of benzofuran derivatives by rice roots reduces the survival rate of brown planthopper nymphs

[0026] In this embodiment, the concentration of the benzofuran derivatives used is 20 mg / L. The rice used is nutrient solution cultured rice, planted on a single plant; the treatment method is to add benzofuran derivatives to the rice nutrient solution to a final concentration of 20mg / L, and use the nutrient solution without adding benzofuran derivatives as a control . After benzofuran derivatives were treated for 24 hours, a special glass cover (4cm in diameter, 8cm in height, and 48 small holes with a diameter of 0.8mm evenly distributed on the wall of the tube) was placed on the stem of each rice plant, and the newly hatched brown planthopper was connected. There were 11 nymphs, and the top of the glass cover was sealed with a round sponge. The experiment was carried out in an artificial climate room with a temperature of 28±2°C, a humidity of 70-80...

Embodiment 2

[0028] Example 2: Benzofuran derivatives themselves have no effect on the survival of brown planthopper nymphs

[0029] In order to exclude the possible influence of these seven benzofuran derivatives on the survival rate of brown planthopper nymphs, the gastric poisoning and contact killing effects of different concentrations of benzofuran derivatives on rice planthopper nymphs were determined in this example. In the experiment of determining the gastric toxicity of benzofuran derivatives to brown planthopper, 11 newly hatched brown planthopper nymphs were placed in each glass double-way tube (diameter 4cm, height 8cm), and artificial feed was wrapped with parafilm at both ends of the double-way tube , adding the benzofuran derivatives with a concentration of 20 mg / L into the artificial diet; taking the artificial diet without the benzofuran derivatives as a control. The double-way tube was moved into an artificial climate box (temperature 28°C, light 12h), the artificial fee...

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PUM

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Abstract

The invention relates to an application of benzofuran compounds in stimulating crops to induce insect resistance. The application comprises a step of applying the benzofuran compounds to crops to stimulate insect resistance of the crops so as to obviously reduce the survival rate of insect pests of hemiptera on the crops, so that damage of insect pests to the crops is alleviated.

Description

technical field [0001] The invention relates to the field of plant-induced insect resistance, and specifically relates to the application of benzofuran compounds in stimulating crop-induced insect resistance. Background technique [0002] With the increase of the global population and the reduction of arable land, people are demanding higher and higher crop yields. The crop yield 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 crop yields is an urgent problem that people face. For example, on rice, the damage caused by pests such as the brown planthopper is enormous. The brown planthopper belongs to the order Hemiptera and lays eggs on the stems of rice. It is explosive and destructive. In recent years, it has broken out every year, causing serious harm to rice grain production in my country. [0003] As one of the most effective methods of control...

Claims

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Application Information

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IPC IPC(8): C07D307/79C07D493/04A01N43/12A01N43/90A01P7/04
Inventor 娄永根陈夏吴军何兴瑞
Owner ZHEJIANG UNIV