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A composition for preventing and treating powdery mildew of crops and its application

A technology for crops and powdery mildew, applied in the field of compositions for preventing and treating powdery mildew of crops, can solve the problems of polluting the environment, excessive pesticide residues, and increasing production costs, and achieves simple components, improved resistance and growth, and reduced harm. Effect

Active Publication Date: 2020-12-04
HENAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Farmers often reduce the harm by increasing the dosage of pesticides and increasing the frequency of spraying, which not only increases the production cost, but also seriously pollutes the environment due to the excessive use of pesticides, resulting in excessive pesticide residues

Method used

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  • A composition for preventing and treating powdery mildew of crops and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The composition for preventing and treating powdery mildew of agricultural crops in this example consists of 8 mL of trisiloxane and the following components: 2.16 g of 2,6-dichloroisonicotinic acid, 0.3 g of β-cyclodextrin, heme 0.15g and glutamic acid 15g.

[0025] The application of the composition for preventing and treating crop powdery mildew of the present embodiment in the prevention and control of crop powdery mildew, specifically the application in the control of cucumber powdery mildew, comprises the following steps:

[0026] 1) Take the components of the formula amount, add 2,6-dichloroisonicotinic acid, β-cyclodextrin, heme and glutamic acid into 15L water and mix evenly, then add trisiloxane and mix evenly to obtain spray liquid;

[0027] 2) At the initial stage of cucumber powdery mildew in the greenhouse, spray the spray solution obtained in step 1) on the surface of cucumber leaves in the morning until it is wet.

Embodiment 2

[0029] The composition for preventing and treating powdery mildew of crops in this example consists of 6mL castor oil polyoxyethylene ether and the following components: 1.44g of 2,6-dichloroisonicotinic acid, 0.2g of β-cyclodextrin, Heme 0.12g and glutamic acid 10g.

[0030] The application of the composition for preventing and treating crop powdery mildew of the present embodiment in preventing and controlling crop powdery mildew is specifically the application in controlling zucchini powdery mildew, comprising the following steps:

[0031] 1) Take the components of the formula, add 2,6-dichloroisonicotinic acid, β-cyclodextrin, heme and glutamic acid into 15L water and mix well, then add castor oil polyoxyethylene ether and mix well, Prepare the spray liquid;

[0032] 2) In the initial stage of the occurrence of zucchini powdery mildew in the greenhouse, spray the spray solution obtained in step 1) on the surface of the zucchini leaves in the morning until it is wet.

Embodiment 3

[0034] The composition for preventing and treating powdery mildew of crops in this example consists of 7 mL of methylphenylpolysiloxane and the following components: 1.80 g of 2,6-dichloroisonicotinic acid, 0.2 g of β-cyclodextrin g, heme 0.1g and glutamic acid 13g.

[0035] The application of the composition for preventing and treating crop powdery mildew of the present embodiment in preventing and controlling crop powdery mildew, specifically the application in preventing and treating strawberry powdery mildew, comprises the following steps:

[0036] 1) Take the ingredients in the formula, add 2,6-dichloroisonicotinic acid, β-cyclodextrin, heme and glutamic acid into 15L water and mix evenly, then add methylphenylpolysiloxane and mix Evenly, the spray liquid is prepared;

[0037] 2) In the early stage of strawberry powdery mildew, spray the spray liquid obtained in step 1) on the surface of strawberry leaves in the evening until it is wet.

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Abstract

The invention relates to a composition for preventing crop powdery mildew and application of the composition, which belongs to the technical field of plant protection. The composition for preventing the crop powdery mildew mainly is prepared from the following components in parts by weight: 1.44 to 2.16 parts of 2,6-dichloroisonicotinic acid, 0.2 to 0.3 part of beta-cyclodextrin, 0.1 to 0.15 partof heme, and 10 to 15 parts of glutamic acid. By adopting the composition for preventing the crop powdery mildew, the function of the immunity system of animals and plants is relocated to resist the invasion of pathogenic bacteria, the systemic acquired resistance is produced, the powdery mildew is inhibited, the preventive and curative effect are improved, and the harm of the powdery mildew on the field vegetable crop can be finally reduced.

Description

technical field [0001] The invention relates to a composition for preventing and treating powdery mildew of crops and an application thereof, belonging to the technical field of plant protection. Background technique [0002] Powdery mildew, commonly known as white hair, is a widespread worldwide disease. Cucumbers in protected areas in early spring and in open areas in summer and autumn in my country cause a lot of losses every year due to the occurrence of powdery mildew. The pathogen is mainly transmitted through the airflow, which has the characteristics of short incubation period, frequent re-infection, and strong epidemic. The pathogen can parasitize zucchini, cucumber, Pumpkin, melon, watermelon, loofah, winter melon and other vegetable crops. The relative humidity of the air is high, and when the temperature is 20-24°C, powdery mildew is prone to occur. Studies have shown that the optimum germination temperature for conidia of the powdery mildew pathogen is 20-25°C ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/90A01N43/40A01N37/44A01P3/00A01P21/00
CPCA01N37/44A01N43/40A01N43/90
Inventor 陈双臣刘爱荣韩利娟李贺郑会晓陈祎斐王向丽纪雪洁
Owner HENAN UNIV OF SCI & TECH
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