Composition for preventing and controlling plant powdery mildew and its preparation method and application

A powdery mildew and composition technology, applied in the field of plant powdery mildew prevention and control compositions and preparation fields, can solve the problems of low bactericidal activity, low drug resistance, safety, etc. high effect

Active Publication Date: 2022-03-01
山东科大创业生物有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the problems of low bactericidal activity, drug resistance and safety in the prior art, this patent provides a biological agent for preventing and treating plant powdery mildew to solve the above problems

Method used

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  • Composition for preventing and controlling plant powdery mildew and its preparation method and application
  • Composition for preventing and controlling plant powdery mildew and its preparation method and application
  • Composition for preventing and controlling plant powdery mildew and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0028] Example 1: Indoor virulence assay for strawberry powdery mildew

[0029] The target of the test is strawberry powdery mildew. The test uses the co-toxicity coefficient method to evaluate the joint toxicity of the compound preparations to clarify a more reasonable ratio.

[0030] The biological activity of the agents was determined by the spore suspension spray inoculation method. The laminarin and sea cucumber saponin were dissolved and diluted with water respectively to prepare a series of medicinal liquids, which were sprayed, and each treatment was repeated 4 times. After 24 hours, take the strawberry leaves covered with powdery mildew, gently wash the fresh spores on the back of the leaves with sterile water, filter them with double-layer gauze, make a suspension with a spore concentration of about 100,000 / mL, and spray inoculate (pressure 0.1 MPa). After inoculation, the test materials were air-dried naturally, and then moved to a constant temperature room under ...

Embodiment 1

[0045] The composition for preventing and treating powdery mildew of plants is prepared by the following method: first add laminarin and sea cucumber saponin to an appropriate amount (50%) of deionized water, then add sodium lauryl sulfate, phytic acid and sodium benzoate sequentially while stirring, and then Then add deionized water to make it up to 100%, stir and mix evenly, and you can get a sample of the plant powdery mildew control composition, which includes 0.5% laminarin, 0.5% sea cucumber saponin, and 3% sodium lauryl sulfate. , phytic acid 0.4%, sodium benzoate 0.5%, deionized water balance.

Embodiment 2

[0047] The preparation method of sample in the present embodiment is similar to embodiment 1, and difference is that the consumption of each component is different during preparation, specifically as follows:

[0048] A composition for preventing and treating powdery mildew of plants, comprising 1% laminarin, 0.2% sea cucumber saponin, 4% sodium lauryl sulfate, 0.8% phytic acid, 0.4% sodium benzoate, and the balance of deionized water.

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Abstract

The application discloses a composition for preventing and controlling plant powdery mildew, a preparation method and application thereof, and belongs to the technical field of compound medicaments for preventing and controlling plant powdery mildew. The composition for preventing and treating powdery mildew of plants includes active components, auxiliary components and solvents; the active components are laminarin and sea cucumber saponin; the mass percentage of the active components in the composition for preventing and controlling powdery mildew of plants The content is 1% to 2%. Laminarin and sea cucumber saponin produce synergistic effect, high bactericidal activity, and the composition is a green environmental protection product, will not cause harm to the environment and human health, safe and non-toxic, and can be developed as a potential biological control agent for powdery mildew .

Description

technical field [0001] The application relates to the technical field of a compound agent for preventing and treating plant powdery mildew, in particular to a composition for preventing and controlling plant powdery mildew, its preparation method and application. Background technique [0002] Powdery mildew is a serious disease of crops. Once the crops are infected with powdery mildew, the onset will be rapid, repeated outbreaks, difficult to cure, and even affect the next crop, causing serious consequences. At present, there are problems such as drug resistance, safety, low bactericidal activity and large dosage of chemical agents in the control of powdery mildew, which seriously restrict the production of crops and cause crop yield reduction. An effective biological agent control program is urgently needed. Contents of the invention [0003] Aiming at the problems of low bactericidal activity, drug resistance and safety in the prior art, this patent provides a biologica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/16A01N45/00A01P3/00A01G13/00
CPCA01N43/16A01N45/00A01G13/00
Inventor 宋晓军孙志锋
Owner 山东科大创业生物有限公司
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