Bactericidal composition containing triazole and thiram

A composition, the technology of thiram, is applied in the direction of fungicides, biocides, and biocides, which can solve the problems of cost reduction and improvement of wheat scab efficacy, and achieve high usage, excellent control effect, and simple preparation Effect

Inactive Publication Date: 2013-07-10
南京南农农药科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the combination of the above medicaments shows a synergistic effect compared with a single medicament, its efficacy against wheat head blight still needs to be improved, and the cost needs to be further reduced

Method used

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  • Bactericidal composition containing triazole and thiram
  • Bactericidal composition containing triazole and thiram
  • Bactericidal composition containing triazole and thiram

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A suspending agent containing tebuconazole and thiram, in terms of mass percentage, its raw material formula includes tebuconazole 10%, thiram 30%, polycarboxylate 3.5%, fatty alcohol ether wetting agent 2% and 54.5% Deionized water.

[0035] The preparation method of the above suspending agent is as follows: add the raw materials into the stirring tank according to the formula, stir evenly, pre-disperse with a high shear machine, then transfer to the sand mill for sanding, add the sanding medium zirconia beads, and start Sand milling to make 90% of the materials have a particle size below 3 μm, stop sand milling after 5 hours, filter to remove zirconia beads, and then prepare a bactericidal composition suspension containing tebuconazole and thiram.

Embodiment 2

[0037] A wettable powder containing tebuconazole and thiram, in terms of mass percentage, its raw material formula includes tebuconazole 5%, thiram 25%, polycarboxylate 8%, fatty alcohol ether wetting agent 2% and appropriate Of filler.

[0038] The preparation method of the above-mentioned wettable powder is as follows: pre-mix the raw materials according to the formula, coarsely pulverize, mix again, and pulverize by the jet mill, then add to the cone mixer, the fineness of the mixed material reaches 99% and passes 325 mesh A standard sieve is used to prepare a wettable powder containing tebuconazole and thiram.

Embodiment 3

[0040] A water dispersible granule containing tebuconazole and thiram, in terms of mass percentage, its raw material formula includes tebuconazole 10%, thiram 30%, polycarboxylate 10%, fatty alcohol ether wetting agent 3%, White carbon black 3%, sodium carboxymethyl cellulose 2%, ammonium sulfate 22%, fillers are added.

[0041] The preparation method of the above-mentioned water dispersible granules is as follows: pre-mix the raw materials according to the formula, coarsely pulverize, mix again, and pulverize by the jet mill, then add to the cone mixer, so that the fineness of the mixed material reaches 99%. The 325 mesh standard sieve is kneaded with water, extruded and granulated, and dried to obtain water dispersible granules of the sterilization composition containing tebuconazole and thiram.

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Abstract

The invention relates to a bactericidal composition of suspending agent form, wettable powder and water dispersible granules. The bactericidal composition mainly comprises the following raw materials in percentage by mass: 1%-3% of triazole fungicide, 10%-60% of thiram and 3%-15% of additive, wherein the triazole fungicide is one substance or a combination of multiple substances selected from epoxiconazole, tebuconazole, cyproconazole and difenoconazole, and the additive comprises a poly-carboxylate dispersing agent and a fatty alcohol ether wetting agent which are added according to a mass ratio of 1: (0.15-3). When the bactericidal composition is used, the good compound stability is always kept between the two active components. Compared with a single dosage for preventing and treating crop diseases, the bactericidal composition has the advantages that the range of preventing and treating diseases is widened, the generation of medicine resistance is delayed, the pesticide effect is obviously improved, the dosage of pesticide used in land per mu and the frequency of pesticide application are reduced, the safety production of agriculture is well ensured, and ecological environments are protected.

Description

Technical field [0001] The invention belongs to the field of pesticide fungicides, and specifically relates to a fungicidal composition containing triazoles and thiram. Background technique [0002] At present, according to the effect of medicaments on diseases, fungicides can generally be divided into three categories: [0003] 1. Protective fungicides: This type of fungicides can protect the application parts that are not infected by pathogens and prevent them from infecting. They need to be sprayed before the crops are not in contact with the disease or the disease occurs, such as Bordeaux. Liquid, lime sulfur mixture, mancozeb, thiram, etc. [0004] 2. Eradicating fungicides: This kind of agents can directly kill the germs before the invasion and treat the infested application parts. They are rarely used directly on crops. For example, formalin is used to disinfect the germ-carrying seeds, and Fenmeining is effective against wheat. Stripe rust and powdery mildew can be eradicat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/26A01N43/653A01N25/00A01P3/00
Inventor 宋海友张兵
Owner 南京南农农药科技发展有限公司
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