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Application of isothiazolinone compounds in control of gray mold and sclerotinia rot of cucumber

A technology of cucumber Botrytis cinerea and isothiazolinone, which is applied in the directions of application, bactericide, biocide, etc., can solve the problems of large toxic and side effects, no reports of the application of isothiazolinone compounds, pollution of the environment, etc. High disease prevention, good development and application prospects, and obvious control effects

Active Publication Date: 2012-08-08
北京靳氏化学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the long-term and large-scale use of chemical pesticides, resulting in problems such as drug resistance, excessive residues, and environmental pollution, it is urgent to develop new pesticide varieties in production
Commonly used chemical agents for the prevention and treatment of Botrytis cinerea and Sclerotinia in production include the following categories: benzimidazoles, dicarboximides, N-phenyl carbamates, anilinopyrimidines, and sterol biosynthesis inhibitors , pyrroles, amides, pyridine amines; the above-mentioned chemical agents all have some unavoidable defects: long-term use of benzimidazoles and N-phenylcarbamate chemical agents will cause strong drug resistance of bacteria; The bactericidal effect of imide chemical agents is low; the action time of anilinopyrimidine chemical agents is short; the sterol biosynthesis inhibitor chemical agents have a certain inhibitory effect on the growth of plants; pyrroles, amides, and pyridine amines are toxic to humans. Big side effects
[0008] At present, there is no report on the application of isothiazolinone compounds in the control of cucumber gray mold and sclerotinia

Method used

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  • Application of isothiazolinone compounds in control of gray mold and sclerotinia rot of cucumber
  • Application of isothiazolinone compounds in control of gray mold and sclerotinia rot of cucumber
  • Application of isothiazolinone compounds in control of gray mold and sclerotinia rot of cucumber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1 isothiazolinone compound is to the inhibition of Botrytis cinerea and Sclerotinia sclerotiorum

[0024] 1. Test material

[0025] Pathogens tested: Botrytis cinrea and Sclerotinia sclerotiorum, provided by Plant Protection Institute of Hebei Academy of Agricultural Sciences.

[0026] Preparation of conidia suspension of cinerea cinerea: inoculate cinerea cinerea on a PDA plate, culture at 25°C, after it produces a large number of conidia, use 1% yeast extract, 2.5% glucose and 10% carrot juice solution to wash the conidia and make about 1 x 10 5 Spores / mL of conidial suspension.

[0027] Test plants: Cucumber (Xintai Mici), planted in the greenhouse flowerpot of the Institute of Plant Protection, Hebei Academy of Agricultural Sciences.

[0028] Test medium: potato dextrose agar (PDA) medium (potato 200g, glucose 20g, agar powder 15g, 1L sterile water); water agar (WA) medium (agar powder 15g, 1L sterile water).

[0029] Test agent: 98% OIT original drug...

Embodiment 2

[0096] Example 2 Configuration of Water Agents for Controlling Cucumber Botrytis and Sclerotinia

[0097] The configuration of the water agent for preventing and treating gray mold and sclerotinia of cucumber: it is formed by mixing the raw materials according to the following weight percentage: 0.3-15% 5-chloro-2-methyl-4-isothiazolin-3-one (CMIT) , 0.1-5% 2-methyl-4-isothiazolin-3-one (MIT), 8-12% surfactant, 0.1-1% co-surfactant, 0.1-0.2% thickener, 0- 30% stabilizer and 40-70% water; surfactant is OP-10; co-surfactant is S408 or JFC; thickener is xanthan gum, carboxymethyl cellulose, sodium alginate, soluble starch, silicon one or more of magnesium aluminum oxide; the stabilizer is one or two of magnesium chloride and magnesium nitrate.

[0098] Wherein, optimal formula and the physicochemical property of optimal formula are as shown in table 11 and 12:

[0099] Table 11 Optimum formulation of CMIT / MIT water agent

[0100]

[0101] Table 12 Physicochemical properties...

Embodiment 3

[0103] Example 3 Field Control Effect Test of CMIT / MIT Water Agent on Cucumber Botrytis and Sclerotinia

[0104] With the prescription of optimal prevention and treatment of cucumber gray mold and sclerotinia described in Example 2 as a medicament, refer to the "Pesticide Field Test Guidelines for Pesticides" GB / T1 7980.28-2000 "Fungicides for the Prevention and Control of Vegetable Botrytis" The efficacy test for the control of cucumber gray mold was carried out with reference to the "Guidelines for Field Efficacy Tests of Pesticides" GB / T17980.35-2000 "Guidelines for Efficacy Tests of Fungicides for the Control of Rapeseed Sclerotinia" by the Institute for Drug Control of the Ministry of Agriculture. Drug efficacy test for the control of cucumber sclerotinia.

[0105] 1. Test conditions

[0106] Experimental field 1 is located in Beizhuangtou Village, Gucheng Town, Dingxing County, Baoding City, Hebei Province. Cucumber variety: "Jinglv", was planted on April 20, 2011, and ...

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Abstract

The invention discloses an application of isothiazolinone compounds in the control of gray mold and sclerotinia rot of cucumber, which belongs to the technical field of plant disease control. The isothiazolinone compounds comprise DCMIT, CMIT, MIT, OIT and BIT. A water aqua is prepared by mixing the CMIT and the MIT according to a mass ratio of 3:1, and mixing the obtained material with certain masses of a surfactant, a surfactant assistant, a thickening agent, a stabilizing agent and water. The isothiazolinone compounds of the invention have obvious control effects on the gray mold and sclerotinia rot of cucumber; and the water aqua which has good disease prevention and control effects on the gray mold and sclerotinia rot of cucumber has good exploitation application prospects.

Description

technical field [0001] The invention belongs to the technical field of plant disease prevention and control, and in particular relates to the application of isothiazolinone compounds in the prevention and treatment of cucumber gray mold and sclerotinia. Background technique [0002] Botrytis cinerea is a worldwide important fungal disease, which is particularly harmful to vegetables and occurs in open fields and protected areas, seriously hindering vegetable production (Zhou Yu, 2003; Wang Shutong et al., 2006; WilliamsonB, et a1.2007) . Sclerotinia is one of the more serious diseases in agricultural production. It not only harms cruciferous vegetables, but also harms kidney beans, soybeans, tomatoes, peppers, cucumbers, etc. Sclerotinia sclerotiorum is one of the three major diseases on rapeseed. The general incidence rate is 10%-30%, and the severe one is over 80%. The yield of diseased plants is reduced by 11%-73%. and quality. [0003] The measures to prevent gray mol...

Claims

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Application Information

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IPC IPC(8): A01N43/80A01N25/04A01P3/00
Inventor 张俊博
Owner 北京靳氏化学科技有限公司
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