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Pesticide composition and method for curing cruciferae crop clubroot

A technology for cruciferous crops and pesticide compositions is applied in the directions of botanical equipment and methods, fertilizer mixtures, chemicals for biological control, etc., and can solve problems such as inability to cure club root disease on crops, and achieve low cost. , Enhanced resistance to stress, a wide range of effects

Active Publication Date: 2014-08-06
江西威敌生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The main purpose of this application is to provide a pesticide composition and method for preventing and treating clubroot of cruciferous crops, so as to solve the problem that pesticide reagents cannot radically cure clubroot damage to crops

Method used

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  • Pesticide composition and method for curing cruciferae crop clubroot
  • Pesticide composition and method for curing cruciferae crop clubroot
  • Pesticide composition and method for curing cruciferae crop clubroot

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] In this embodiment, the Brassica napus seed is used as the test material, and the test method is as follows:

[0046] First dilute the test agent to five different concentrations of 0.01, 0.05, 0.1, 0.15 and 0.2mg / L, then put the rapeseed in the diluted solution, soak for 6 hours, remove it, wash and dry. After that, put it in a petri dish. Put two layers of qualitative filter paper under the seeds in each petri dish, add 10ml of water to make the filter paper repeatedly wet, and then place it in an artificial climate box for cultivation. During the test, observe from time to time, add clean water in time to prevent water loss, and ensure the same amount of water added for each treatment.

[0047] Each test concentration is set to 4 repetitions, each repetition is 100 seeds, and a total of 400 seeds are required. Choose clean rapeseeds, mix them thoroughly, and flatten them into a thin layer. Then randomly and accurately count 400 seeds. Set clear water control.

[0048] D...

Embodiment 2

[0054] In this example, the field efficacy test for preventing and treating root swelling of Chinese cabbage is taken as an example. The test method is as follows:

[0055] The soil acidification of the experimental field of Chinese cabbage is serious. After years of continuous planting, the disease of root swelling is serious (incidence rate is over 95%, disease index is 76). There are 3 treatments in the experiment, and each treatment is repeated 3 times.

[0056] The first experiment started with 2 leaves and 1 heart stage of Chinese cabbage. The stems and leaves were sprayed with brassinolide at a concentration of 0.15 mg / L, and sprayed every 10 days for 5 times. The control agent was irrigated with 75% carbendazim wettable powder 500 times liquid, 250ml per plant, and irrigated every 10 days for 4 consecutive times.

[0057] The data for the above-mentioned experiments were obtained when the Chinese cabbage was harvested, and 10 plants were randomly surveyed according to the pr...

Embodiment 3

[0071] In this example, the field efficacy test for preventing and treating root swelling of rape is taken as an example, and the test method is as follows:

[0072] The root swelling disease in the test rape field is severe (incidence rate is over 87%, disease index is 65.1). The first stubble of the test field was rice, and the test field was flat and typical loam. The soil moisture was relatively high during application, about 60%. There are 3 treatments in the experiment, and each treatment is repeated 3 times.

[0073] Firstly, the rape seeds were soaked with a drug solution at a concentration of 0.05 mg / L. After 6 hours, they were taken out and air-dried, and they were dried until semi-dry and then sowed. When the two cotyledons of the rape seedlings are fully expanded, spray the stems and leaves with a chemical solution with a concentration of 0.15 mg / L, and spray them every 7 days for 5 consecutive times.

[0074] The control agents were 10% cyanoxazol suspension and 50% fl...

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Abstract

The application discloses a pesticide composition and method for curing the cruciferae crop clubroot. The pesticide composition adopts brassinolide or the mixture of brassinolide and other pesticides as an effective constituent, and comprises auxiliaries or fertilizers, wherein the brassinolide comprises one or all of natural brassinolide, 24-epibrassinolide, 22,23,24-epibrassinolide, 28-epibrassinolide, 28-homobrassinolide, 25-methyl-brassinolide and 14-hydroxy-brasinosteroidy; the content of the brassinolide is 0.001 percent to 0.4 percent. According to the application, brassinolide serves as a phytohormone for curing the cruciferae crop clubroot, so as to efficiently prevent the disoperation of the clubroot on a crop.

Description

Technical field [0001] This application relates to the field of pesticide compositions, in particular to a pesticide composition and method for preventing and curing root edema of cruciferous crops. Background technique [0002] Crucifer root disease is caused by Plasmodiophorabrassicae (Plasmodiophorabrassicae) infection. It is a soil-borne and seed-borne disease, commonly known as "large root disease" and "cancer disease". It is one of the devastating diseases in the world. Clubroot disease is an obligate parasitic bacteria, which is highly contagious, spreads quickly, and has many routes, making it difficult to prevent. The pathogen of root swelling is Rhizoctonia brassicae of the subphylum Flagellum, which is a low-grade fungus. The pathogen survives the winter as dormant sporangia and remains with the diseased remains in the soil, and its vitality can be maintained for more than 10 years. Pathogenic spores can be spread in the field with diseased bodies, seeds (seedlings), ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/22A01P3/00C05G3/00
Inventor 吴通
Owner 江西威敌生物科技有限公司
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