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Pesticide composition with sclerotin and azoxystrobin as active ingredients

A technique of pesticide composition and active ingredient, which is applied in the field of pesticides, can solve the problems that have not been reported, and achieve the effect of low drug cost, reasonable components and good safety

Inactive Publication Date: 2011-12-21
TOBACCO RES INST CHIN AGRI SCI ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, there is no report about the combination of sclerotin and azoxystrobin and its application in the prevention and treatment of tobacco red spot disease

Method used

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  • Pesticide composition with sclerotin and azoxystrobin as active ingredients
  • Pesticide composition with sclerotin and azoxystrobin as active ingredients
  • Pesticide composition with sclerotin and azoxystrobin as active ingredients

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1 Research on compound synergy of sclerotin and azoxystrobin

[0020] The inventor has carried out mutual compensation and synergistic research with sclerotin and azoxystrobin as active ingredients, and the test takes tobacco Alternaria Alternaria as the test object.

[0021] Test drug: Sclerotin is provided by Beijing Dongwang Pharmaceutical Factory, and azoxystrobin is provided by Plant Protection Institute of Chinese Academy of Agricultural Sciences.

[0022] Preparation of the strains to be tested: Get the bacterial strains of Alternaria alternata, inoculate them on the PDA plate medium for activation, take the plate from the edge with a puncher and place it on the PDA medium, and wait for its growth for 72 hours spare.

[0023] Determination of antibacterial activity of a single agent: Sclerotin and azoxystrobin were prepared into drug-containing PDA plates with 8 concentration gradients of 0.05, 0.1, 0.5, 1, 2, 5, 10 and 20 μg / mL, respectively, without ad...

Embodiment 2

[0037] Embodiment 2 prepares wettable powder

[0038] The formula is as follows:

[0039] The original medicine of 93% Sclerotinia is 34.41% by mass.

[0040] The technical content of 98% azoxystrobin is 8.16% by mass.

[0041] Wetting agent: alkylnaphthalene formaldehyde condensate NNO5%.

[0042] Surfactant: Sodium Lauryl Sulfate 5%.

[0043] Carrier: Kaolin 47.43%.

[0044] The preparation method is as follows: the active ingredients, additives and fillers are divided by air flow to a particle size of less than 20 μm, sequentially added to the mixer according to the proportion of the formula, and mixed evenly to obtain 40% sclerotin. Azoxystrobin wettable powder.

[0045] The field experiment of controlling tobacco red spot disease was carried out from July 27 to August 14, 2010 at the Jimo Experimental Station of Tobacco Institute, Chinese Academy of Agricultural Sciences. The variety of flue-cured tobacco planted was NC89. During the experiment, the tobacco was in th...

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Abstract

The invention discloses a pesticide composition with dimethachlon and azoxystrobin as active components, which comprises the following components calculated according to mass percentage: 20-35 percent of the dimethachlon, 5-20 percent of the azoxystrobin and the balance of water or addition agent, wherein the mass ratio of the dimethachlon to the azoxystrobin is (1:1)-(6:1), preferably (4:1)-(6:1). The preparation form which can be prepared by the pesticide is wetabble powder. The pesticide composition with the dimethachlon and the azoxystrobin as the active components, which is disclosed by the invention, can be used for controlling tobacco brown spot and has the advantages of reasonable composition, favorable pesticide effects and low application cost. By combining the active components, namely the dimethachlon and the azoxystrobin, the activity and the controlling effect of the pesticide composition are not simply overlapped by activities of various components but the pesticide composition has remarkable synergism and sterilization actions; and the dosage of pesticide can be effectively reduced, the production cost is reduced, the pesticide resistance can be retarded and the favorable safety is achieved.

Description

technical field [0001] The invention discloses a pesticide composition using dimetachlone and azoxystrobin as active ingredients and its application in the prevention and treatment of tobacco red spot disease, belonging to the field of pesticides. Background technique [0002] Tobacco red spot disease is an important leaf disease in the late mature stage of tobacco leaves. It occurs in various tobacco areas in my country and directly affects the yield and quality of tobacco leaves. For a long time, it has been mainly based on the use of disease-resistant varieties and chemical control. But ideal disease-resistant varieties are difficult to come by and are prone to loss of resistance. Chemical control is still the main measure for disease control, and Sclerotinia is currently the main agent for the control of tobacco red spot disease. Sclerotin is an imine fungicide, which has the characteristics of direct sterilization, internal osmosis treatment and long-lasting effect, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/54A01N37/32A01N25/14A01P3/00
Inventor 张成省王凤龙冯超王新伟周建牛柱峰杜传印曹长代
Owner TOBACCO RES INST CHIN AGRI SCI ACAD
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