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Composition and method for controlling root-knot nematodes, soil-borne pathogenic fungi and weeds

A technology of pathogenic fungi and root-knot nematodes, applied in the field of pesticides, can solve problems such as difficult to eradicate, and achieve the effects of cost saving, convenient application and excellent effect

Inactive Publication Date: 2013-09-18
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems that root-knot nematodes, soil-borne diseases and weeds are easy to take place and difficult to eradicate in economic crops such as flowers, melons, fruit trees, nurseries, and Chinese herbal medicines, and proposes a method for preventing and treating root-knot nematodes, soil-borne pathogenic fungi and weeds. composition of grass

Method used

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  • Composition and method for controlling root-knot nematodes, soil-borne pathogenic fungi and weeds
  • Composition and method for controlling root-knot nematodes, soil-borne pathogenic fungi and weeds
  • Composition and method for controlling root-knot nematodes, soil-borne pathogenic fungi and weeds

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The reagents used in this example are:

[0023] 99% dimethyl disulfide (Shanghai Yuanji Chemical Co., Ltd.), abbreviation: DMDS;

[0024] 42% Metabam water agent (Shenyang Fengshou Pesticide Co., Ltd., Liaoning Province), abbreviation: MS.

[0025] The soil samples for testing are:

[0026] The soil samples were collected from the cucumber seedling field in Shunyi, Beijing, where nematodes and diseases were serious all the year round. The soil from the plow layer was taken through a 2mm sieve and mixed well for later use. After analysis, the soil water content (water: dry soil) is 23.80%, pH6.87, soil organic matter content 32.0g / kg, NH 4+ -N3.2mg / kg, NO 3- -N53.6mg / kg, available phosphorus 578.0mg / kg, available potassium 1069.0mg / kg, belonging to sandy loam.

[0027] The evaluation indicators and methods are:

[0028] Meloidogyne incognita., by centrifugation;

[0029] Fusarium spp., isolated by Komada method;

[0030] Phytophthora spp., isolated by Masago metho...

Embodiment 2

[0073] Before the lettuce is planted, first the soil is deeply plowed 30cm, while ensuring that the soil has a certain humidity, and then the mixed 35% Vibram water agent (according to the active ingredient 25g / m 2 consumption) and 99% dimethyl disulfide (according to active ingredient 40g / m 2 The dosage) is evenly injected into the soil, and finally the "reverse burial method" is used to cover the film and fumigate for 2 weeks, then open the air for 3 days, and after the lettuce seed germination test qualitatively judges that there is no chemical residue, it can be planted.

Embodiment 3

[0075] Before planting cucumbers, firstly plow the soil 30cm deep, and at the same time ensure that the soil has a certain degree of humidity, and then mix 42% of Weibamu water agent (according to the active ingredient 20g / m 2 consumption) and 99% dimethyl disulfide (according to active ingredient 40g / m 2 The dosage) is evenly applied to the soil through the drip irrigation system (in order to increase the water solubility of dimethyl disulfide, Tween 80 can be added in an amount of 4%), and finally the "reverse burial method" is used for fumigation for 3 weeks, and the open After 7 days, after the cucumber seed germination test qualitatively judges that there is no pesticide residue, it can be planted.

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Abstract

The invention discloses a composition and a method for controlling root-knot nematodes, soil-borne pathogenic fungi and weeds in the technical field of pesticides. The composition comprises a metam-sodium preparation and a dimethyl disulfide preparation. When the composition is used, deep tillage is firstly performed on soil, then the metam-sodium preparation and the dimethyl disulfide preparation are mixed according to a certain proportion and then injected into the soil or applied into the soil through a drip irrigation system, the two medicaments can also be successively applied, a reverse burying method is finally adopted for film-covering fumigation for 2-4 weeks, then opening to the air is performed for 3-12 days, and the composition can be planted after a seed germination test of a crop to be cultivated qualitatively judges that no medicament residues exist. The composition is suitable for soil disinfection before planting of crop fields, such as vegetables, strawberries, flowers, melons, nurseries, orchards, tea gardens, vineyards, forests, Chinese herbal medicines and the like, and can effectively control meloidogyne incognita, main soil-borne pathogenic fungi and main grass and broadleaf weeds.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a composition for preventing and controlling root-knot nematodes, soil-borne pathogenic fungi and weeds and a method for using the same. Background technique [0002] In the past ten years, with the adjustment of agricultural planting structure, protected cultivation has developed rapidly in our country. The national protected area has exceeded 2 million hectares. As an important agricultural measure to increase farmers' income and transform from traditional agriculture to modern agriculture, protected cultivation in China will continue to develop in the future, and the crops cultivated will also change from the current vegetables and strawberries to flowers, melons, and fruit trees. , Nursery, Chinese herbal medicine and other directions. The development of protected areas also provides a suitable environment for the occurrence and development of root-knot nemat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/26A01P5/00A01P3/00A01P13/00
Inventor 毛连纲曹坳程颜冬冬马涛涛王秋霞郭美霞李园欧阳灿彬
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
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