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Pyrimorph bactericide compounded pesticide composition

A technology of pesticide composition and pyrimorph, which is applied in the direction of fungicides, biocides, biocides, etc., can solve the problems that it is difficult to produce obvious effects, and it is difficult to catch up with the resistance of pathogenic bacteria, so as to reduce pesticide residues, Effects of reducing adverse effects and overcoming drug resistance

Inactive Publication Date: 2010-04-14
SHAANXI BIAOZHENG CROP SCIENCE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, it is difficult to catch up with the speed of pathogen resistance
Other methods, such as crop layout adjustment, rotation of different pesticides, etc., are difficult to produce obvious effects in the actual operation process

Method used

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  • Pyrimorph bactericide compounded pesticide composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The original drug (the "original drug" in this application document refers to the pyrimorph bactericide or mancozeb, propineb, and chlorothalonil), which will not be described in detail below), various auxiliary agents and fillers, etc. Mix and pulverize with a superfine pulverizer to prepare wettable powder. The formula is as follows:

[0020] Pyramorph 16.7%

[0021] Mancozeb 3.3%

[0022] Sodium lauryl sulfate (surfactant) 2%

[0023] White carbon black (filler) 5%

[0024] Sodium lignosulfonate (dispersant) 5%

[0025] Attapulgite (filler) makes up to 100%.

[0026] The wettable powder of pyrimorph-mancozeb in this example was used to carry out the disease control experiment, the control object was tomato late blight, and the test site was Yantai, Shandong. Take above-mentioned wettable powder and spray according to 2000 times of dilution, 7 days after the drug, the control effect is 93.42%. 89.29% and 75.71%.

Embodiment 2

[0028] The original drug, various additives and fillers are fully mixed, pulverized by an ultra-fine pulverizer, and then formulated into a wettable powder. For example the following formula:

[0029] Pyramorph 7.2%

[0030] Propineb 72.8%

[0031] Sodium lauryl sulfate (surfactant) 5%

[0032] Sodium lignosulfonate (dispersant) 9%

[0033] Kaolin (filler) makes up to 100%.

[0034] The disease control experiment was carried out with the wettable powder of pyrimorph-propineb in this example, the control object was cucumber downy mildew, and the test site was Lanzhou, Gansu. Get above-mentioned wettable powder and spray according to 2000 times of dilution, 10 days after the medicine, control effect is 94.35%, and the control effect of contrast agent 20% propimorph suspension concentrate 2000 times, 70% Propineb wettable powder 600 times is respectively 88.18%, 76.43%.

Embodiment 3

[0036] The original drug, various additives and fillers are fully mixed, pulverized by an ultra-fine pulverizer, and then formulated into a wettable powder. For example the following formula:

[0037] Pyramorph 40%

[0038] Chlorothalonil 2%

[0039] Sodium lauryl sulfate (surfactant) 2%

[0040] White carbon black (filler) 5%

[0041] Sodium lignosulfonate (dispersant) 5%

[0042] Bentonite (filler) was made up to 100%.

[0043] The Pyramorph-chlorothalonil wettable powder of this example was used to carry out the disease control experiment, the control object was grape white rot, and the test site was Weinan, Shaanxi. Get above-mentioned wettable powder and spray according to 4500 times of dilution, 7 days after the medicine, the control effect is 92.51%, and the control effect of contrast agent 20% propimorph suspension concentrate 2000 times, 50% chlorothalonil wettable powder 800 times is respectively 83.27%, 74.35%.

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Abstract

The invention relates to a pesticide composition comprising a pyrimorph bactericide, the active ingredient of the composition is one of the pyrimorph bactericide, mancozeb, chlorothalonil and propineb, the ratio of the weight parts of two active ingredients ranges from 20:1 to 1:50, the optimum proportion is from 5:1 to 1:10, and the cumulant of the two ingredients account for 20 to 80 percent of the total weight of the composition. The pesticide composition of the invention has excellent synergism function, compared with single fungicides, the fungicidal effect of the composition is obviously enhanced, meanwhile, the use dosage, labor used for application and cost of pesticides are lowered, the harmful effects on environment and the pesticide residues are reduced, the drug resistance of pathogenic bacteria can be delayed or overcome, the life time of the single fungicides is prolonged, the prevention and cure are broad-spectrum, and various crop diseases can be prevented and cured.

Description

technical field [0001] The invention relates to a compound pesticide for preventing and treating oomycete diseases, in particular to a compound pesticide compounded with pyrimorph fungicide and mancozeb Background technique [0002] Oomycete is a very serious plant pathogen in agricultural production at present. It has the characteristics of short generation, large sporulation, short incubation period, frequent re-infection, strong damage to host plants, and fast epidemic speed. It can cause a variety of plant diseases, such as tomato late blight and potato late blight caused by Phytophthora infestans, and pepper blight caused by Phytophthora capsici. The economic loss it brings to agricultural production is very serious. For example, tomato late blight can cause a 10% to 30% yield reduction, and in severe cases it can reach 80%, or even extinction. In the comprehensive control measures of oomycetes, chemical control is still one of the main means of disease control. Oomyc...

Claims

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Application Information

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IPC IPC(8): A01N47/14A01N43/84A01N37/34A01P3/00
Inventor 景辉赵萍罗水凌潘馗
Owner SHAANXI BIAOZHENG CROP SCIENCE CO LTD