Insecticide containing furan compounds and application thereof

A technology of insecticides and compounds, applied in the field of insecticides, can solve the problems of no nematicide activity and other problems, and achieve the effects of strong poisonous killing effect, good environmental compatibility, and easy degradation

Inactive Publication Date: 2020-06-05
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 search shows that 2-furanoic acid, also known as furoic acid (Pyromucicacid), is a precursor of organic synthesis, which can be used to produce plasticizers, thermosetting resins, etc. in the plastics industry; it can be used as an antifungal agent and Preservatives; 2-tetrahydrofurancarboxylic acid is also a precursor of organic synthesis, but there are no public reports on the nematicidal activity of 2-furanic acid and 2-tetrahydrofurancarboxylic acid and their application in the preparation of nematicidal preparations

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: The poisonous activity of 2-furancarboxylic acid to root-knot nematode incognita

[0015] 1. Sample preparation

[0016] Dissolve 0.5 mg-1.5 mg of 2-furancarboxylic acid in methanol, dilute the concentration with sterile distilled water, and the final concentration of methanol should not exceed 5%.

[0017] 2. Preparation of nematodes for experiment

[0018] 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 incubation in the solution for 48 hours, the second-instar larvae were collected in a 1.5ml ...

Embodiment 2

[0028] Example 2: Toxic activity of mixtures of 2-tetrahydrofurancarboxylic acid and its isomers (R)-2-tetrahydrofurancarboxylic acid and (S)-2-tetrahydrofurancarboxylic acid against root-knot nematode northern

[0029] The experimental method used in this example is basically the same as in Example 1, except that the test compound 2-furan formic acid is replaced by 2-tetrahydrofuran formic acid and its isomers (R)-2-tetrahydrofuran formic acid, (S)-2-tetrahydrofuran A mixture of formic acid; the test nematodes were replaced by M. incognita. The obtained experimental results are as follows:

[0030] Table 2 The poisoning results of 2-tetrahydrofurancarboxylic acid and its isomer mixtures on root-knot nematodes (%)

[0031]

[0032] As can be seen from Table 2: the mixture of 400 µg / ml 2-furan formic acid and its isomers (R)-2-tetrahydrofuran formic acid and (S)-2-tetrahydrofuran formic acid is effective against root-knot nematode (Meloidogyne nematode) in 48 hours. hapla)...

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Abstract

The invention discloses an insecticide containing furan compounds and application of the insecticide, in particular to an insecticide prepared by taking 2-furancarboxylic acid, 2-tetrahydrofurancarboxylic acid and optical isomers thereof as active ingredients. The invention further relates to an application of the insecticide to poisoning and killing root-knot nematodes. The 2-furancarboxylic acidand the 2-tetrahydrofurancarboxylic acid are derived from microorganisms and plants, are also common industrial raw materials, and are easy to degrade in the environment, so that compared with othernematocides, the nematocide 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, and in particular relates to an insecticide containing furan compounds and an application thereof. 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, of which four kinds of root-knot nematodes (Meloidogyne incognita, Meloidogyne arenaria, northern root-knot nematode Nematodes (Meloidogyne hapla) and Javan root-knot nematodes (Meloidogyne javanica) are relatively common. At present, the control of nematodes is still dominated by chemical control, but most of the chemical nematicides are highly toxic and high-residue pesticides, causing serious harm to humans, animals and the environment. threat. Some chemical n...

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 赵沛基雷红梅李国红张克勤
Owner 赵沛基
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