Application of pesticide composition with synergism and decrement effect in prevention and treatment of fusarium blight

A pesticide composition and technology of scab, which is applied in the field of pesticides, can solve problems such as decline in use effect, aggravation of drug resistance, environmental pollution of pesticide residues and food safety problems, aggravation of wheat scab hazards and food safety risks, etc.

Active Publication Date: 2016-06-29
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] With the long-term and extensive use of these selective fungicides with a single mechanism of action, drug resistance has emerged in the natural pathogenic fungal population, and the use effect has declined year by year
Through nearly 30 years of drug resistance monitoring, the inventor found that Fusarium fungi resistant to carbendazim and other benzimidazole fungicides in East China have formed a dominant group, and commonly used benzimidazoles such as carbendazim and thiophanate Fungicides have basically lost their value in the control of wheat head blight
At the same time, because the ability of drug-resistant bacteria to produce DON toxin is more than 5 times that of sensitive strains, it has increasingly aggravated the harm of wheat head blight and the risk of food safety in China.
In order to reduce yield loss, farmers often double the use of fungicides such as carbendazim, which further exacerbates resistance, pesticide residues, environmental pollution and food safety problems

Method used

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  • Application of pesticide composition with synergism and decrement effect in prevention and treatment of fusarium blight
  • Application of pesticide composition with synergism and decrement effect in prevention and treatment of fusarium blight
  • Application of pesticide composition with synergism and decrement effect in prevention and treatment of fusarium blight

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0125] Embodiment 1: 42% Jinggangmycin and prothioconazole agricultural fungicide suspension concentrate control wheat disease test

[0126] Test time and place: April 2015, Jiangsu Xinyang Farm

[0127] Test material: wheat, variety: Huaimai No. 33.

[0128] experiment method:

[0129] Sample preparation method: Prothioconazole and Jinggangmycin original drug are mixed according to the weight ratio of 1:20, 1:6, 5:16, 5:2 and 6:1, and then processed according to the research method V described in this application manual A test sample of the agricultural fungicide suspension concentrate of the present invention with a content of 42% by weight was obtained. Every mu uses 25 milliliters, 50 milliliters, 100 milliliters of agricultural fungicide suspending agents of the present invention. Spray with water in the early stage of wheat flowering, spray the second medicine every 5 days, and spray 50 kg of water per mu. At the same time, we used a single dose of wettable powder (p...

Embodiment 2

[0135] Embodiment 2: the effect of 64% agricultural fungicide wettable powder of the present invention to prevent and treat wheat diseases

[0136] Test time and place: April 2015, Jiangsu Yanjiang Agricultural Science Institute (Rugao)

[0137] Test material: wheat. Variety: Yangmai No.4.

[0138] Test method: According to the weight ratio of prothioconazole and Jinggangmycin original drug of 1:1, according to the research method VII described in the specification of this application, the wettable powder test sample of the agricultural fungicide of the present invention with a content of 64% by weight was prepared. The agricultural fungicide wettable powder of the present invention whose active ingredient content of Jinggangmycin and prothioconazole is 4-20 grams is used respectively per mu. Spray water at the early flowering stage of Yangmai No. 4 wheat, and spray the second medicine every 5 days, with a water spray volume of 45 kg per mu. Simultaneously use the content o...

Embodiment 3

[0143] Embodiment 3: 20% agricultural fungicide wettable powder of the present invention prevents and treats wheat disease and reduces the effect of toxin pollution

[0144] Test time and place: In April 2015, Jiangsu Yanjiang Agricultural Science Institute (Rugao), the test was arranged in the same field as Example 2.

[0145] Test material: wheat. Variety: Yangmai No.4.

[0146] Test method: After mixing prothioconazole and Jinggangmycin original drug at a weight ratio of 1:1, add 10% kaolin carrier by weight, 2% sodium lignosulfonate additive, 2% carboxymethyl cellulose, 1 % alkylphenol polyoxyethylene ether phosphate and 2% polyvinyl alcohol, and finally add light calcium carbonate carrier to supplement to 100%, pulverize through a sand mill and pass through a 300-mesh sieve. Prepare a wettable powder test sample with a content of 20% by weight of an agricultural fungicide. The active ingredient amounts of Jinggangmycin and prothioconazole were 20, 15, and 6 grams of ag...

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PUM

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Abstract

The invention relates to a new application of a pesticide composition for preventing and treating fusarium blight. 1-150 parts by weight of validamycin and 1-20 parts by weight of prothioconazole are used for preventing and treating fusarium blight per mu and have obvious synergism, the effect of preventing and treating the fusarium blight can be improved remarkably, and abilities of human in prevention and control of the fusarium blight of triticeae crops are improved; and the validamycin and prothioconazole composition is used for preventing and treating the fusarium blight of the triticeae crops, pollution level of grain DON toxin can further be reduced remarkably, pesticide dosage is reduced, cost is lowered, environmental pollution and pesticide residue are reduced, and development of pesticide resistance of pathogenic fungi of wheat is delayed; meanwhile, the new application of the pesticide composition for preventing and treating fusarium blight has the advantages that the lasting period of the validamycin is prolonged, using frequency of pesticide is reduced, powdery mildew of cereals, rust disease, leaf blight and sheath blight can also be treated, and pesticide use cost and labor cost are reduced; and use dosage of chemical pesticide is greatly reduced, and the pesticide composition is environmentally friendly.

Description

【Technical field】 [0001] The invention belongs to the technical field of pesticides. More specifically, the present invention relates to the use of a synergistic and reduced-volume pesticide composition in the control of wheat scab, and also relates to the use of an agricultural fungicide in the control of wheat scab. 【Background technique】 [0002] Wheat and barley are the most important cultivated cereal crops in the world and one of the main food crops in China. Cereal crops are often threatened by fungal diseases such as scab, powdery mildew, sheath blight, rust and leaf blight. These diseases occur in the cereal growing areas of the world, seriously affecting the yield and quality of cereal agricultural products, especially the wheat head blight caused by Fusarium can not only cause devastating yield loss, but also in infected grains Produces toxins such as deoxynivalenol (Trichothecenes, DON) and zearalenone (Zearalenon), which seriously affects the quality of food s...

Claims

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Application Information

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IPC IPC(8): A01N43/653A01N43/16A01P3/00
CPCA01N43/16A01N43/653A01N2300/00
Inventor 周明国王建新段亚冰蔡义强李雁军
Owner NANJING AGRICULTURAL UNIVERSITY
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