Bactericide composition containing coumoxystrobin with synergistic effect
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A syringate, synergistic technology, applied in the directions of fungicides, biocides, biocides, etc., can solve the problems of the expansion and spread of diseases, the single mechanism of action, and the reduction of fungal control effects, so as to reduce the generation of drug resistance and the control effect. Increases and decreases resistance effects
Inactive Publication Date: 2015-03-25
JILIN BADA PESTICIDE
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However, syringstrobin is a methoxyacrylate compound with a single mechanism of action. Long-term repeated use in field applications may lead to selectivity of fungal strains in many cases, and the strains form adapti
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[0045] Example 1
[0046] 1% (w / w) syringostrobin and wilkin suspensoid, the weight ratio of syringostrobin and wilkin is 1:1;
[0047]
[0048]
[0049] Mix the various components together, stir for 15 minutes, shear for 15 minutes, and then grind in a sand mill at 30°C for 150 minutes until the particle size of the active ingredient is less than 3 μm.
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[0050] Example 2
[0051] 90% (w / w) syringomycin and fenprofen wettable powder, the weight ratio of syringomycin and fenprofen is 40:1;
[0052]
[0053] Add various materials to the coulter mixer in turn, mix them evenly, and then pulverize with a jet mill until the particle size of the active ingredient is less than 45 μm, and it is ready.
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[0054] Example 3
[0055] 10% (w / w) water dispersible granules of syringostrobin and fluoxystrobin, the weight ratio of syringomycin to fluoxystrobin is 20:1;
[0056]
[0057] The preparation method of the water-dispersible granules of the composition of the present invention: take the above-mentioned raw materials according to the formula, mix them evenly in a coulter mixer, and pulverize into powder by an ultrafine jet mill to obtain a fine powder of 800 mesh to 1000 mesh. The aqueous solution of powder and binder is added to the mixer and mixed evenly, granulated by an extrusion granulator, and dried at a low temperature at 50℃-100℃ to obtain.
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Abstract
The invention provides a bactericide composition containing coumoxystrobin with a synergistic effect. The bactericide composition comprises a component A, coumoxystrobin, and components B such as carboxin, mepronil, flutotanil and benodanil, wherein a weight ratio of the component A to the components B is 1:40 to 40:1. Two types of bactericides with different action mechanisms are combined. According to the composition, the resistance of pathogenic fungi on coumoxystrobin is weakened or delayed, and the condition that the drug effect is reduced is avoided. Meanwhile, because the composition formed by different types of fungicides has a synergistic effect, the composition disclosed by the invention has the effect of obviously improving the disease control effect. The composition can be prepared into conventional dosage forms and is used for controlling apple tree canker, rice blast, wheat scab, wheat powdery mildew and the like. According to the composition disclosed by the invention, the observed effect of the composition is higher than the expected effect obtained by using a Colby formula by 137.37-181.80 percent, and is higher than that of a single dosage by one or more times.
Description
technical field [0001] The invention belongs to the field of agricultural chemical fungicides, and in particular relates to a composition containing syringstrobin and a synergistic effect, wherein the synergistic fungicides are wisterin, promethamine, flunamide, mistazol, One of mefuramide, boscalid, furamet, pethiamide and fluopyram. Background technique [0002] The chemical name of syringstrobin is (E)-2-(2-((3-butyl-4-methyl-coumarin-7-yloxy)methyl)phenyl)-3-methoxy Methyl acrylate, the structural formula is as follows: [0003] [0004] Syringstrobin is an efficient and broad-spectrum agricultural fungicide. Rapeseed sclerotinia, apple tree rot, rice blast, tomato leaf mold, wheat head blight, cucumber scab, tomato anthracnose, cucumber wilt, apple ring spot, rice sheath blight, rice bad seedlings Pathogens such as wheat powdery mildew, cucumber powdery mildew, cucumber downy mildew, wheat sheath blight, cucumber gray mold, and banana gray spot have very high anti...
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