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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 oysporum, a semi-known fungus. It occurs widely and often causes heavy losses of crops.

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

Embodiment 1

[0037] Embodiment 1: 20.2% iprodione·hymexazol suspension concentrate

[0038] 20% iprodione, 0.2% hymexazol, 8% nonylphenol polyoxyethylene ether phosphate, 1% carboxymethyl cellulose, 1% white carbon black, 4% glycerol, and make up to 100% with water.

[0039] This embodiment is applied to control tomato wilt. Dilute 20.2% iprodione·hymexazol suspending agent with 900g·a.i / ha (g·a.i / ha refers to the amount of active ingredients per hectare, the same below) and dilute with water for root irrigation treatment. The effects were 94.5% and 87.2%, respectively. 1000g·a.i / ha for 25% iprodione suspension and 900g·a.i / ha for 10% hymexazol water solution, used in the same way, the control effect of 25% iprodione suspension for 15 days and 40 days They were 78.3% and 70.7% respectively; the control effects of 10% hymexazol aqueous solution were 65.4% and 52.3% after 15 days and 40 days respectively. The compounding of iprodione and hymexazol has obvious synergistic effect, and the c...

Embodiment 2

[0042] Embodiment 2: 30% iprodione·hymexazol suspension seed coating

[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 the prevention and treatment of blight of eggplant. The 30% iprodione·hymexazol suspension seed coating was treated according to the ratio of drug to species 1:100, and the control effects were 94.5% and 87.2% at 25 days and 50 days after spraying. 25% Iprodione Suspension Seed Coating Agent is used in the same way according to the drug species ratio of 1:80 and 10% Hymexazol Seed Dressing Agent is used in the same way. After 25% Iprodione Suspension Seed Coating Agent The control effects of 10 days and 50 days were 76.3% and 71.7% respectively; the control effects of 10% hymexazol seed dressing were 63.4% and 50.3% after 25 days and 50 days respectively. The...

Embodiment 3

[0047] Embodiment 3: 30% iprodione·hymexazol aqueous emulsion

[0048] Iprodione 20%, hymexazol 10%, N-methylpyrrolidone 10%, calcium dodecylbenzenesulfonate 5%, Nongru 600# 5%, water to make up to 100%.

[0049] This embodiment is applied to the prevention and treatment of cotton fusarium wilt. Dilute the 30% iprodione·hymexazol aqueous emulsion at 900g·a.i / ha with water to shower the ground, and the control effects are 95.7% and 91.3% at 20 days and 40 days after application. Use the same method for 25% iprodione wettable powder at 800 g.a.i / ha and 10% hymexazol water at 1000 g.a.i / ha. The control effects of 25% iprodione wettable powder were 78.2% and 71.2% after 20 days and 40 days respectively; the control effects of 10% hymexazol water were 68.8% and 61.3% after 20 days and 40 days respectively . The compounding of iprodione and hymexazol has obvious synergistic effect, and the control effect on cotton wilt is obviously better than that of single agent.

[0050] 4. M...

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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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