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Application of carvacrol and derivatives and analogues thereof in elimination or reduction of fosthiazate phytotoxicity

A technology of carvacrol and thiazophosphine, which is applied in the agricultural field, can solve the problems of thiazophosphine phytotoxicity and the like, and achieve the effects of enhanced inhibitory effect and environmental friendliness

Active Publication Date: 2021-04-02
SOUTH CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the existing thiazolylphosphine is harmful to plants, especially the inhibition of plant root growth, and a new solution is provided to eliminate or reduce the inhibitory effect of thiazolylphosphine on plant growth.

Method used

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  • Application of carvacrol and derivatives and analogues thereof in elimination or reduction of fosthiazate phytotoxicity
  • Application of carvacrol and derivatives and analogues thereof in elimination or reduction of fosthiazate phytotoxicity
  • Application of carvacrol and derivatives and analogues thereof in elimination or reduction of fosthiazate phytotoxicity

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Experimental program
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Effect test

Embodiment 1

[0037] 1. Experimental medicine and other materials

[0038] Preparation of carvacrol solution: Carvacrol was purchased from sigma (carvacrol, article number: W224511-100G-K, CAS number: 499-75-2), and 250 mg of carvacrol original drug was weighed with an electronic balance, and 1000 μL of koji was measured. Laton, 500 μL ethanol, and 3% Tween-20 solution were used to dissolve to 10 mL to obtain a 25 mg / mL carvacrol solution.

[0039] 10% thiazophosphine granules were purchased from the Pesticide Factory of the Institute of Plant Protection, Chinese Academy of Agricultural Sciences.

[0040] In this experiment, tomato seedlings were taken as an example. The variety of tomato was Hard Fen No. 8, which was purchased from the National Vegetable Engineering Technology Research Center.

[0041] 2. Experimental method

[0042] The experiment was divided into nine groups, as follows:

[0043] (1) CK group: no medicine was added;

[0044] (2) 2mg thiazophosphine group: Sprinkle in...

Embodiment 2

[0060] Based on the above results, we also investigated the dosage ratio range of carvacrol and thiazophosphine.

[0061] The results show that when using thiazophosphine, combined use of carvacrol can significantly reduce the inhibitory effect of thiazophosphine on plants; Ratio (carvacrol: thiazole phosphine = 1:500) can show the above effects.

[0062] It should be noted that the above data only represent the results of the direct experimental verification of the present invention, and are not used to limit the ratio of carvacrol and thiazophosphine. Those skilled in the art can reasonably predict the excess of carvacrol based on the results of the present invention: Thiazophosphine=1: (0.001-500) The scheme of this ratio range should also show the same or similar efficacy.

Embodiment 3

[0064] In embodiment 1, carvacrol is replaced by following five kinds of substances respectively: (1) p-mentan-2-alcohol, (2) 2-methyl-4-isopropyl phenol, (3) 4-methyl -2-isopropylphenol, (4) 3-methyl-4-isopropylphenol, (5) 4-methyl-3-isopropylphenol.

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Abstract

The invention discloses application of carvacrol and derivatives and analogues thereof in elimination or reduction of fosthiazate phytotoxicity. Researches show that when carvacrol and fosthiazate aremixed for use, the inhibition effect of fosthiazate on plant growth can be eliminated / reduced, the control effect of fosthiazate on plant pests is not influenced, and meanwhile, the inhibition effecton plant pests is also enhanced. Therefore, the carvacrol and the fosthiazate can be combined to be used for developing a new medicament for preventing and treating plant pests (such as plant nematodes), and the growth of plants is not influenced while plant insect pests and diseases are effectively prevented and treated. Moreover, carvacrol widely exists in thyme, origanum vulgare, winter mint and other aromatic plants, and is environmentally friendly and safe as a plant source component. Therefore, the scheme provided by the invention has important theoretical guidance significance and practical application value for preventing and treating plant diseases.

Description

technical field [0001] The invention belongs to the field of agricultural technology. More specifically, it relates to the application of carvacrol and its derivatives and analogs in eliminating or reducing thiazophosphine injury. Background technique [0002] Thiazophosphine is an organophosphorus pesticide, and its mechanism of action is to inhibit the action of the target organism, acetylcholinesterase, so as to achieve the effect of preventing and controlling harmful organisms such as root-knot nematodes. Especially as a nematicide, it is widely used. Plant parasitic nematodes are important plant pathogens. According to reports, the economic value of crops caused by plant nematode damage is more than 100 billion U.S. dollars every year in the world. The plant nematode species that cause the greatest losses to crops mainly include root-knot nematodes (Meloidogyne spp.), cyst nematodes (Heterodera spp.), spherical cyst nematodes (Globodera spp.), short-body nematodes (P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N57/32A01N31/08A01N25/32A01P5/00
CPCA01N57/32A01N31/08A01N25/32
Inventor 林柏荣卓侃刘倩廖金铃
Owner SOUTH CHINA AGRI UNIV