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Illicium simonsii nematicide as well as preparation method and application thereof

A technology of nematicide and wild star anise, applied in the field of preparation and wild star anise nematicide, can solve the problems of unexplored system agricultural activity, can not be applied in agricultural production, no product formed, etc. Significant activity and low cost effect

Inactive Publication Date: 2022-07-08
NORTHWEST A & F UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above are only the test results in the laboratory, and so far there has been no systematic research on its agricultural activity, no product has been formed, and it cannot be applied to agricultural production

Method used

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  • Illicium simonsii nematicide as well as preparation method and application thereof
  • Illicium simonsii nematicide as well as preparation method and application thereof
  • Illicium simonsii nematicide as well as preparation method and application thereof

Examples

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preparation example Construction

[0039] Application of wild star anise extract for the preparation of nematicides. The nematicide contains 10% to 30% of the wild star anise extract by mass. The preparation method of the wild star anise extract comprises: the wild star anise extract is pulverized by the wild star anise fruit and then extracted with an organic solvent to obtain a concentrated solution equivalent to 1kg dry powder / kg; the organic solvent extraction method is ultrasonic extraction, and the extraction temperature is 30° C., the leaching time is 0.5 to 1 hour, and the mass ratio of wild star anise to the organic solvent is 1:(5 to 10). The particle size of the pulverized star anise fruit is 1-5 mm; the organic solvent is methanol.

[0040] A wild star anise nematicide, the nematicide is mainly composed of a wild star anise extract, and the mass percentage of the wild star extract is 10% to 30%.

[0041] The preparation form of the nematicide is an emulsifiable concentrate, and the auxiliaries of ...

Embodiment 1

[0063] Example 1 Preparation of 20% Illicium anise extract microemulsion

[0064] Weigh 20kg of wild star anise concentrate, dissolve in 30kg methanol, add 15kg calcium dodecylbenzenesulfonate, 5kg styrene acid polyoxyethylene ether, 5kg ethylene glycol, mix under high-speed stirring, and heat to 40°C about; add 25kg of deionized water dropwise under high-speed stirring, control the dripping speed of water, and keep the temperature at about 40°C; after the addition of water dropwise, heat up to 50°C and stir for 1 hour to obtain 100kg of 20% anise extract microemulsion . The stability and appearance of the preparation meet the requirements of commercial preparations.

Embodiment 2

[0065] Example 2 The preparation of 20% wild star anise extract soluble liquid

[0066] Take by weighing 20kg of wild star anise concentrate, dissolve in 30kg methanol, add 15kg sodium dodecyl benzene sulfonate, 4kg ethylene glycol, 0.3kg polyvinyl alcohol under stirring, make up to 100kg with deionized water, after mixing, Stirring at a stirring speed of 800-1000 r / min for 10-30 minutes can prepare 100kg of the soluble liquid preparation of the anise extract. The stability and appearance of the preparation meet the requirements of commercial preparations.

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Abstract

The invention discloses an illicium simonsii nematocide, a preparation method and application thereof, the preparation method comprises the following steps: crushing illicium simonsii fruits, and preparing illicium simonsii extract nematocide soluble liquid, microemulsion and fumigant through a certain processing process, and the illicium simonsii extract nematocide soluble liquid, microemulsion and fumigant can be used for preventing and controlling Meloidogyne incognita on crops such as tomatoes, pumpkins and cucumbers; white) Chitwood, and can also be used for preventing and treating potato stem nematode Ditylenchus destructor on crops such as potatoes, sweet potatoes and the like, and also can be used for preventing and treating potato stem nematode Ditylenchus destructor. The preparation contains 10-30% of illicium simonsii extract and the balance of auxiliaries. The nematicide disclosed by the invention not only has a good nematicidal effect, but also is safe to the environment, people, livestock, natural enemies of pests and other beneficial organisms. The nematicide is simple in preparation process, low in cost and suitable for popularization and application.

Description

technical field [0001] The invention belongs to the field of plants and applications thereof, in particular to a wild star anise nematicide, a preparation method and applications thereof. Background technique [0002] Meloidogyne incognita (Kofold&White) Chitwood is an important parasitic nematode with a wide host range and can harm hundreds of plants. When the incidence of root-knot nematode is mild, there is no obvious change in the aerial part of the plant, so it is not easy to detect. When the disease is serious, the leaves of the plant turn yellow, wilt, the plant is dwarfed, the fruit yield decreases, the quality decreases, and even the plant dies. The control of root-knot nematodes is very difficult due to the characteristics of adaptability, fecundity, concealment and chemical resistance. According to statistics, plant diseases caused by M. incognita each year will directly or indirectly cause economic losses of about 50 billion in different industries around the wo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/08A01P5/00
CPCA01N65/00A01N65/08Y02A50/30
Inventor 吴华闫合陈光友蔡崇林王永宏冯俊涛马志卿
Owner NORTHWEST A & F UNIV
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