Insecticide containing furan compounds and application thereof

A technology of pesticides and compounds, applied in the field of pesticides, to achieve the effect of good compatibility and easy degradation

Active Publication Date: 2020-10-02
赵沛基
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Domestic and foreign literature searches show that 2-furanoic acid, also known as furoic acid (Pyromucic acid), is a precursor of organic synthesis, and can be used in the production of plasticizers, thermosetting resins, etc. in the plastics industry; it can be used as an antifungal agent in the food industry and preservatives; 3-furoic acid, also known as 3-furoic acid (3-Pyromucic acid), is a precursor for the synthesis of drugs and spices, 3-furoic acid can be detected in some fungi and plants; 2-tetrahydrofuranic acid and 3 -Tetrahydrofurancarboxylic acid is also a precursor of organic synthesis, but there are no public reports on the nematicidal activity of 2-furancarboxylic acid, 2-tetrahydrofurancarboxylic acid, 3-furancarboxylic acid and 3-tetrahydrofurancarboxylic acid and the application of nematicidal preparations

Method used

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  • Insecticide containing furan compounds and application thereof
  • Insecticide containing furan compounds and application thereof
  • Insecticide containing furan compounds and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Study on the poisonous activity of 2-furancarboxylic acid against Meloidogyne incognita

[0016] (1) Sample preparation

[0017] Dissolve 0.5mg-1.5mg of 2-furancarboxylic acid in methanol, dilute the concentration with sterile distilled water, and prepare five concentration gradients of 25-400μg / ml, and the final concentration of methanol is no more than 5%.

[0018] (2) Preparation of nematodes for testing

[0019] Wash the tomato roots with Meloidogyne incognita cultivated in the greenhouse with sterile water, pick out the oocysts of the root-knot nematode with a dissecting needle and place them in 0.4M KCl solution, and use 4ml of no Bacteria water (three times), 1ml of sterile penicillin-streptomycin double antibody solution, 3ml of 10.1% NaClO solution for washing and disinfection, each step was briefly centrifuged (8000 rpm for 30 seconds) to remove the supernatant. The washed eggs were placed in 0.4M ZnCl 2 After hatching in the solution for 48 hours, the seco...

Embodiment 2

[0031] Study on the Toxic Activity of 2-Tetrahydrofurancarboxylic Acid and Its Isomers (R)-2-Tetrahydrofurancarboxylic Acid and (S)-2-Tetrahydrofurancarboxylic Acid Mixtures Against Meloidogyne japonicum

[0032] This example is basically the same as the experimental method used in Example 1, except that the test compound is replaced by 2-tetrahydrofuran formic acid and its isomers (R)-2-tetrahydrofuran formic acid, (S)-2- A mixture of tetrahydrofurancarboxylic acid; the nematodes used in the experiment were replaced by Meloidogyne incognita derived from tomato roots and Meloidogyne incognita derived from Nicotiana nicotianae. The obtained experimental results are as follows:

[0033] Table 2 The poisoning results of 2-tetrahydrofurancarboxylic acid and its isomer mixture to root-knot nematode northern root-knot nematode (%)

[0034]

[0035]

[0036] As can be seen from Table 2: the mixture of 2-furan formic acid and its isomer (R)-2-tetrahydrofuran formic acid and (S)...

Embodiment 3

[0038] Study on the Toxic Activity of 3-Furancarboxylic Acid to Meloidogyne javanica

[0039] (1) Sample preparation

[0040] Dissolve 3-furancarboxylic acid in methanol, dilute the concentration with sterile distilled water, prepare five concentration gradients of 50-800 μg / ml, and the final concentration of methanol does not exceed 5%.

[0041] (2) Preparation of nematodes for testing

[0042] Meloidogyne javanica was collected from cucumbers planted by farmers, and the root nodules infected with root-knot nematodes were taken, washed with sterile water, and the oocysts on the root nodules were picked with a dissecting needle and placed in 0.4M KCl solution, and placed in a 5ml centrifuge tube Wash and disinfect with 4ml sterile water (three times), 1ml sterile penicillin-streptomycin double antibody solution, and 3ml 0.1% NaClO solution, and remove the supernatant by brief centrifugation (8000 rpm for 30 seconds) in each step. The washed eggs were placed in 0.4M ZnCl 2 T...

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Abstract

The invention discloses an insecticide containing furan compounds and application thereof. The invention discloses an insecticide prepared by taking at least one of 2-furancarboxylic acid, 2-tetrahydrofurancarboxylic acid, (R)-2-tetrahydrofurancarboxylic acid, (S)-2-tetrahydrofurancarboxylic acid, 3-furancarboxylic acid, 3-tetrahydrofurancarboxylic acid, (R)-3-tetrahydrofurancarboxylic acid and (S)-3-tetrahydrofurancarboxylic acid as an active ingredient, and application of the insecticide in killing root-knot nematodes. The active ingredients of the nematicide are derived from microorganismsand plants, are also common industrial raw materials and are easy to degrade in the environment, so that compared with other nematicides, the nematicide has the advantages of high efficiency, low toxicity, low residue and better environmental compatibility, and meets the requirements of green plant protection and sustainable agricultural production and development.

Description

technical field [0001] The invention belongs to the technical field of insecticides, in particular to an insecticide containing furan compounds and its application. Background technique [0002] Plant root-knot nematode is a serious hazard. It not only brings serious diseases to humans and animals, but also causes losses equivalent to 104.4 billion US dollars to crops every year. Among the common plant pathogenic nematodes, the root-knot nematode (Meloidogyne) ranks first in the damage to plants, and four kinds of root-knot nematodes (Meloidogyne incognita, Meloidogyne arenaria, northern root-knot nematode Nematode (Meloidogyne hapla) and root-knot nematode (Meloidogyne javanica) are relatively common. At present, the control of nematodes is still based on chemical control, but most of the chemical nematicides are highly toxic and high-residual pesticides, which cause serious damage to humans, animals and the environment. threat. Some chemical nematicides, such as methyl br...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/08A01P5/00
CPCA01N43/08
Inventor 赵沛基雷红梅莫明和李国红张克勤
Owner 赵沛基
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