Composition used for controlling plant diseases

A plant disease and composition technology, which is applied in the field of composition for preventing and controlling plant diseases, can solve problems such as crop loss, and achieve the effects of reducing production and use costs, reducing phytotoxicity, and reducing selection pressure

Inactive Publication Date: 2012-02-01
DONGGUAN RUIDEFENG BIO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Fusarium wilt is a very intractable disease on crops. It is caused by Fusarium

Method used

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  • Composition used for controlling plant diseases
  • Composition used for controlling plant diseases
  • Composition used for controlling plant diseases

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Example 1: 20.2% Iprodione·Mexazol suspension

[0038] Iprodione 20%, hymexazol 0.2%, nonylphenol polyoxyethylene ether phosphate 8%, carboxymethyl cellulose 1%, white carbon black 1%, glycerol 4%, water supplement to 100%.

[0039] This embodiment is applied to control tomato fusarium wilt. Dilute the 20.2% Iprodione·oxamethalin suspension with 900g·ai / ha (g·ai / ha refers to the amount of active ingredient per hectare, the same below) for root irrigation treatment, 15 days and 40 days after treatment The effects were 94.5% and 87.2% respectively. 25% iprodione suspension is 1000g·ai / ha and 10% hymexazol solution is 900g·ai / ha, used in the same way, the control effect of 25% iprodione suspension 15 and 40 days after administration Respectively 78.3%, 70.7%; 10% hymexazol solution 15 days and 40 days after the control effect was 65.4%, 52.3%. The synergistic effect of the combination of iprodione and hymexazol is obvious, and the control effect on tomato fusarium wilt is ob...

Example Embodiment

[0042] Example 2: 30% Iprodione·Xamycin suspension seed coating agent

[0043] Iprodione 20%, hymexazol 10%, nonylphenol polyoxyethylene ether phosphate 8%, carboxymethyl cellulose 1%, polyvinyl alcohol 2%, white carbon black 1%, glycerol 4%, Carbon black 1%, water make up to 100%.

[0044] This embodiment is applied to control eggplant fusarium wilt. The 30% iprodione·oxaquinone suspension seed coating agent was treated with seed dressing at a drug-to-species ratio of 1:100, and the control effects were 94.5% and 87.2% at 25 days and 50 days after application. 25% Iprodione suspension seed coating agent according to the drug species ratio 1:80 and 10% hymexazol seed dressing agent according to the drug species ratio 1:60, use the same method, 25% Iprodione suspension seed coating agent after 25% The control effect at day and 50 days were 76.3% and 71.7%, respectively; the control effect at 25 days and 50 days after 10% hymexazol was 63.4% and 50.3% respectively. The synergistic...

Example Embodiment

[0047] Example 3: 30% Iprodione·oxamethalin water emulsion

[0048] Iprodione 20%, hymexazol 10%, N-methylpyrrolidone 10%, calcium dodecylbenzene sulfonate 5%, Nongru 600#5%, water supplement to 100%.

[0049] This embodiment is applied to control cotton fusarium wilt. The 30% iprodione·oxamethalin water emulsion was diluted with water at 900g·a.i / ha to drench the ground, and the control effects were 95.7% and 91.3% at 20 days and 40 days after administration. 25% Iprodione wettable powder is 800g·a.i / ha and 10% hymexazol water is 1000g.a.i / ha, using the same method. The control effect of 25% Iprodione WP was 78.2% and 71.2% after 20 days and 40 days respectively; the control effect of 10% Hymexazol solution was 68.8% and 61.3% after 20 days and 40 days. . The synergistic effect of the combination of Iprodione and Hymexazol is obvious, and the control effect against cotton wilt is obviously better than that of single agent.

[0050] 4. Microemulsion processing and application exa...

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Abstract

The invention relates to a composition used for controlling plant diseases. The effective components of the composition are iprodione (A) and an active component hymexazol (B), wherein a mass ratio of A to B is 100:1-1:100. When A and B are combined, a synergistic effect is provided for fusarium wilt controlling. Also, the composition can be used for controlling plant threadworms. The composition can be used in disease controlling of plant living bodies such as fruit trees, vegetables, alimentary crops, oil crops, sugar crops, cotton and bast fiber crops, and gardening plants, or growth sites thereof. Especially, the composition is used for controlling nematodiasis, fusarium wilt, and root rot.

Description

technical field [0001] The invention relates to a composition for preventing and controlling plant diseases, in particular to a composition for preventing and controlling plant diseases containing iprodione. Background technique [0002] Fusarium wilt is a very refractory disease on crops, which is caused by the half-known fungus Fusarium oysporum. It occurs widely and often causes heavy losses of crops. [0003] Plant parasitic nematodes mainly include: Meloidogyne, Rotylenchulus, cyst nematodes (Heterodera), root spot nematodes (Pratykenchus). The direct feeding of nematodes can greatly reduce the absorption of nutrients and water by plants. The nematodes feed on plants and cause wounds, which also facilitate the invasion of plant pathogens. In 2001, Li Maosheng and others found that root-knot nematodes aggravated the occurrence of Fusarium wilt. [0004] Hymexazol has good activity against Fusarium fungus and can better control fusarium wilt, but is ineffective against ...

Claims

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Application Information

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IPC IPC(8): A01N47/38A01N43/80A01P3/00A01P5/00
Inventor 张洪曹明章唐彩乐曲哲王新军李广泽
Owner DONGGUAN RUIDEFENG BIO TECH
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