Metconazole and tebuconazole containing bactericidal composition and application thereof
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A technology of tebuconazole and metconazole, which is applied in the field of pesticides, can solve the problems of increased disease prevalence and failure of wheat scab prevention and control, and achieves the effects of controlling drug resistance, reducing the risk level of drug resistance, and improving bactericidal activity.
Inactive Publication Date: 2016-12-07
NANJING AGRICULTURAL UNIVERSITY
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[0013] Purpose of the invention: In order to overcome the existing problems in the prior art that the frequency of resistance to the agents for the prevention and treatment of wheat crop scab is increasing continuously, and the range of resistance is expanding year by year, which often leads to the failure of wheat scab control and the aggravation of disease prevalence. The present invention proposes a method that has a good synergistic effect on the prevention and control of wheat scab, greatly reduces the amount of pesticide application, reduces environmental pollution and residues of agricultural products, has a long duration and improves wheat stress resistance. Bactericidal composition containing metconazole and tebuconazole and application thereof
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Embodiment 1
[0038] A bactericidal composition containing metconazole and tebuconazole, the dosage form is wettable powder, and the specific composition ratio of each component is as follows: metconazole 8%, tebuconazole 32%, sodium lignosulfonate 1%, laundry detergent powder 2%, sodium lauryl sulfate 2%, diatomaceous earth 20%, and the rest is kaolin to supplement to 100%.
[0039] The preparation method is as follows: thoroughly mix the above components, pulverize through a sand mill and pass through a 300-mesh sieve to obtain a 40% metconazole·tebuconazole wettable powder.
Embodiment 2
[0041] A bactericidal composition containing metconazole and tebuconazole, the dosage form is wettable powder, and the specific proportion of each component is as follows: 6% metconazole, 10% tebuconazole, 1% sodium lignosulfonate, laundry detergent powder 2%, sodium lauryl sulfate 2%, diatomaceous earth 20%, and the rest is kaolin to supplement to 100%.
[0042] The preparation method is as follows: thoroughly mix the above components, pulverize with a sand mill and pass through a 300-mesh sieve to obtain 16% metconazole·tebuconazole wettable powder.
Embodiment 3
[0044] A bactericidal composition containing metconazole and tebuconazole, the dosage form is wettable powder, and the specific proportion of each component is as follows: 24% metconazole, 6% tebuconazole, 1% sodium lignosulfonate, laundry detergent powder 2%, sodium lauryl sulfate 2%, diatomaceous earth 20%, and the rest is kaolin to supplement to 100%.
[0045] The preparation method is as follows: thoroughly mix the above components, pulverize through a sand mill and pass through a 300-mesh sieve to obtain a 30% metconazole-tebuconazole wettable powder.
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Abstract
The invention discloses a metconazole and tebuconazole containing bactericidal composition and application thereof. Main ingredients include metconazole and tebuconazole according to the ratio of 1: 40 to 20:1, and a proper auxiliary and a carrier are used in cooperation for prevention and treatment of diseases of wheat. Compared with traditional chemical agents, the composition has the advantages that the two main ingredients are compatible, the synergistic effect is remarkable, bactericidal activity is improved, the dosage of single fungicide is reduced, and pesticide cost is reduced; the composition is efficient, low in toxicity, low in residue quantity, good in fast-acting property, long in lasting period and environmentally friendly; the chemical resistance risk level of pathogenic bacteria to chemical agents is lowered, maintenance of sensitivity of the pathogenic bacteria is benefited, and meanwhile chemical resistance of bacteria to a single dosage in the formula can be delayed; the bactericidal effect is remarkable, wheat scabs are effectively prevented and treated, wheat powdery mildews, wheat rust, wheat sharp eyespots and wheat leaf blotches are treated at the same time, chemical resistance of the pathogenic bacteria to carbendazim is governed, harm caused by diseases to crop production is reduced, the yield of agricultural products is raised, and the quality of agricultural products is improved.
Description
technical field [0001] The invention relates to the technical field of pesticides, in particular to a fungicidal composition containing metconazole and tebuconazole and an application thereof. Background technique [0002] Wheat is the most important cereal cultivated crop in the world, and it is also an important food crop in my country. Scab, powdery mildew, sheath blight, rust and leaf blight are important fungal diseases that threaten wheat production, seriously affecting the yield and quality of wheat. In particular, wheat head blight caused by Fusarium not only causes devastating yield loss, but also produces large amounts of deoxynivalenol (DON) and zearalenes in the infected kernels. Toxins such as ketone (Zearalenone) seriously affect food security and threaten the health of humans and animals. [0003] Wheat scab is an ascomycete disease of bud rot, seedling dieback and ear rot / ear dieback that can be caused by a variety of Fusarium fungi or Fusarium spp. Its pa...
Claims
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Application Information
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