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Nanopesticides for controlling Monochamus alternata and pine xylophilus

A nano-pesticide and nano-technology, applied in the fields of biological control chemicals, nematicides, applications, etc., can solve the problems of inability to kill the pests in the trunk, the pests are prone to drug resistance, and the controllability is poor. The effect of pesticide reduction, broad market application prospects, and low equipment requirements

Active Publication Date: 2021-03-30
SHANDONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned prior art, the object of the present invention is to provide a novel nano-pesticide for controlling Monochamus alternata and pine xylophilus, which effectively solves the problem of low efficacy, poor controllability and inability to kill pests in the trunk of traditional pesticide preparations. , Pests are prone to develop resistance and other problems

Method used

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  • Nanopesticides for controlling Monochamus alternata and pine xylophilus
  • Nanopesticides for controlling Monochamus alternata and pine xylophilus
  • Nanopesticides for controlling Monochamus alternata and pine xylophilus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Dissolve 0.72g copper acetate and 8g benzoic acid in 200mL n-butanol, stir at room temperature until dissolved, and obtain copper acetate-benzoic acid / n-butanol solution;

[0045] (2) Dissolve 1.6 g of trimesic acid in 40 mL of tetrahydrofuran, stir at room temperature until dissolved, and obtain a trimesic acid / tetrahydrofuran solution;

[0046] (3) Stir the trimesic acid / tetrahydrofuran solution prepared in step (2) dropwise into the copper acetate-benzoic acid / n-butanol solution of step (1), react at room temperature for 6 hours, and centrifuge at 8000 rpm A blue precipitate was obtained, which was washed several times with tetrahydrofuran, collected by centrifugation, and dried in vacuum to obtain nano-Cu-BTC; the yield of the obtained nano-Cu-BTC was 99.0%.

[0047] Yield of nano-Cu-BTC=(actual yield of nano-Cu-BTC / theoretical calculation yield of nano-Cu-BTC)×100%.

[0048] (4) Get the nano Cu-BTC prepared by step (3) and disperse it in tetrahydrofuran to obt...

Embodiment 2

[0056] (1) 1.44g of copper acetate and 4g of benzoic acid were dissolved in 400mL of n-butanol, stirred at room temperature until dissolved to obtain copper acetate-benzoic acid / n-butanol solution;

[0057] (2) Dissolve 0.8 g of trimesic acid in 80 mL of tetrahydrofuran, stir at room temperature until dissolved, and obtain a trimesic acid / tetrahydrofuran solution;

[0058] (3) Stir the trimesic acid / tetrahydrofuran solution prepared in step (2) dropwise into the copper acetate-benzoic acid / n-butanol solution of step (1), react at room temperature for 12 hours, and centrifuge at 8000 rpm A blue precipitate was obtained, which was washed several times with tetrahydrofuran, collected by centrifugation, and dried in vacuum to obtain nano-Cu-BTC; the yield of the obtained nano-Cu-BTC was 98.6%.

[0059] (4) Get the nano Cu-BTC prepared by step (3) and disperse it in tetrahydrofuran to obtain a concentration of nano Cu-BTC dispersion liquid of 0.04mg / mL; get Abamectin in addition an...

Embodiment 3

[0063] (1) Dissolve 3.6g copper acetate and 8g benzoic acid in 1000mL n-butanol, stir at room temperature until dissolved to obtain copper acetate-benzoic acid / n-butanol solution;

[0064] (2) Dissolve 8 g of trimesic acid in 200 mL of tetrahydrofuran, stir at room temperature until dissolved, and obtain a trimesic acid / tetrahydrofuran solution;

[0065] (3) Stir the trimesic acid / tetrahydrofuran solution in (2) dropwise into the copper acetate-benzoic acid / n-butanol solution, and react at room temperature for 24 hours. Washing for many times, centrifuging to collect the precipitate, and drying in vacuum to obtain nano-Cu-BTC; the yield of the obtained nano-Cu-BTC is 98.3%.

[0066] (4) Get the nano Cu-BTC prepared by step (3) and disperse in tetrahydrofuran to obtain a concentration of nano Cu-BTC dispersion liquid of 0.2mg / mL; get Abamectin in addition and dissolve it in tetrahydrofuran to obtain a concentration of 0.4mg / mL mL of abamectin solution.

[0067] Stir the Averm...

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Abstract

The invention discloses a novel nano pesticide for preventing and treating monochamus alternatus and pine wood nematodes. The novel nano pesticide is a nano pesticide preparation prepared by taking nano Cu-BTC as a carrier to load pesticide abamectin; the nano Cu-BTC serving as the carrier is uniform and stable in particle size and good in dispersity, and agglomeration is avoided; the interior ofthe nano Cu-BTC is of a porous structure, so that the nano Cu-BTC has a relatively large specific surface area, high drug loading capacity and a quite good sustained and controlled release effect. Theprepared nano pesticide preparation can penetrate through cell wall barriers of plants due to the nano size, and the pesticide is transported into barks and is used for preventing and treating monochamus alternatus and pine wood nematodes.

Description

technical field [0001] The invention relates to the technical field of pesticide preparations, in particular to a novel nano-pesticide for controlling Monochamus alternata and pine xylophilus and a control method thereof. Background technique [0002] Pine xylophilus is one of the most harmful invasive alien species in my country, and it is also the pathogen of pine wilt. After being infected by pine wood nematode, the water transport, photosynthesis, respiration and transpiration of pine trees will be inhibited, the bark will become dry, the needles will start to fade green, turn brown, and gradually wilt to death. Forestry causes huge economic losses. As the main vector of pine wood nematode, monochamus alternatus has also received extensive attention. The adult monochamus alternata can not only spread pine wood nematode during the feeding process, but also its larvae can eat the cortex and sapwood of weakened pine trees , resulting in irregular flat tunnels, which later...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/90A01N25/04A01N25/22A01P5/00
CPCA01N25/04A01N25/22A01N43/90
Inventor 周成刚季英超满虹宇王明宇刘彦雪李子坤曹晟涵
Owner SHANDONG AGRICULTURAL UNIVERSITY
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