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Application of alpha-trithiophene in control of pine wood nematode disease

A technology of pine wood nematode and trithiophene, which is applied in the field of α-trithiophene and can solve problems such as inability to function

Inactive Publication Date: 2006-02-22
赵昕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is generally believed that: 1. α-T only acts as a poison to the Lepidoptera pests in sanitary pests and agricultural and forestry pests; nematodes, but photoactivatable toxins that depend on light conditions are not effective here

Method used

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  • Application of alpha-trithiophene in control of pine wood nematode disease
  • Application of alpha-trithiophene in control of pine wood nematode disease
  • Application of alpha-trithiophene in control of pine wood nematode disease

Examples

Experimental program
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Effect test

Embodiment 1

[0078] Example 1: Purchase α-trithiophene from Sigma Company, dissolve it with a small amount of acetone, add water to make a solution with a concentration of 100g / L, and use the high-pressure and large-capacity tree injection dryer 6HZ-0503 produced by Jiangsu Bohua Biotechnology Co., Ltd. The type injection dryer injects at the base of the trunk (within 15cm from the ground), and applies to the pine forest before the end of June every year. The injection amount is calculated according to the volume of the tree, and the actual injection amount is >100g / m 3 . Pine tree nematodes will not develop in the year after application.

Embodiment 2

[0080] Use α-trithiophene with a purity of >95% produced by Sigma Company, dissolve it with a small amount of acetone, add water to make a solution with a concentration of 100g / L, and use a knapsack punching machine in the ground below 10cm from May to June every year. Holes are evenly drilled around the trunk (one more hole is drilled for every 3cm increase in diameter at breast height), the holes are inclined downward about 45°, and the depth is 1.0-1.2cm. Each hole is injected with α-T solution. The total injection volume is based on the quality of the tree and the solute in the solution. Calculating the quality of α-trithiophene, the mass of injected α-trithiophene per gram of quality tree is greater than 10 -4 g. Plug the holes with slime. Pine tree nematodes will not develop in the year after application.

Embodiment 3

[0082] Use α-trithiophene with a purity >95% produced by Sigma Company, dissolve it with a small amount of acetone, add water to make a solution with a concentration of 100g / L, and apply the drug by wrapping the trunk in May-June every year. The specific method is to use a machete to scrape off the rough bark at the chest height of the trunk to the cambium (the cambium cannot be damaged), and the scraping area is 100cm 2 , and then absorb the α-T aqueous solution with cotton wool and stick it on the scraped skin, and then wrap it tightly with plastic cloth. If the DBH is below 10cm, the dosage should be 30ml. For every 3cm increase in the DBH, the dosage should be increased by 10ml. If the DBH is above 20cm, the dosage should be 250ml or more. In the year after the application of the pesticide, pine wood nematodes will not occur in pine trees.

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PUM

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Abstract

The invention relates to the use of alpha-terthiophene, in particular the use for the control of pine wilt disease, experimental investigation has shown that, when the when the concentration of the alpha-terthiophene is higher than 10-4g / L, the pine wilts can be poisoned within short period of time. The alpha-terthiophene can be applied to pine trees directly or with the compositions containing the alpha-terthiophene.

Description

(1) Technical field [0001] The present invention relates to the use of α-terthienyl (α-terthienyl, hereinafter referred to as α-T), especially the application for preventing and treating pine wood nematode disease. (2) Background technology [0002] Pine wood nematode (Bursaphelenchus xylophilus (Steiner & Buhrer) Nickle), also known as pine wilt disease, is a devastating epidemic of pine trees. Pine xylophilus is mainly transmitted by Monochamus alternatus. The pine xylophilus enters the xylem of pine trees through the nutrient-supplemented wound of Monochamus alternata, and parasitizes in the resin canal. It is generally believed that the light penetration here is very poor, especially for pine trees with a larger diameter at breast height, and the older the tree, the thicker the skin. Pine wood nematodes move while multiplying in large numbers, gradually spread throughout the whole plant, and cause the destruction and death of parenchyma cells and epithelial cells in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/10
Inventor 赵博光
Owner 赵昕
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