Azoxystrobin-containing sterilization pesticide composition and application thereof

The technology of pesticide composition and azoxystrobin, which is applied in the field of compound sterilization pesticide composition, can solve the problems of not conforming to the social trend of green environmental protection, serious downy mildew resistance, affecting the quality of agricultural products, etc., and achieves enhanced sterilization. and control effects, reducing pesticide residues, and reducing the effect of field pesticides

Inactive Publication Date: 2010-09-22
LIER CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although there are many kinds of fungicides currently available for the prevention and treatment of downy mildew, such as 58% metalaxyl manganese zinc wettable powder, 64% anti-virus alum wettable powder, 58% swissyl manganese zinc wettable powder, etc., they are not exhaustive. satisfactory
Moreover, due to long-term repeated or unscientific use of these drugs, the resistance of downy mildew bacteria has become serious. Not only the dosage is continuously increasing, but also the pesticide residues in agricultural products are high, which affects the quality of agricultural products and does not conform to the social trend of green environmental protection. At the same time, it causes serious damage and pollution to the environment, causing a series of vicious circles.

Method used

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  • Azoxystrobin-containing sterilization pesticide composition and application thereof
  • Azoxystrobin-containing sterilization pesticide composition and application thereof
  • Azoxystrobin-containing sterilization pesticide composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] Example 1: Determination of the efficacy of azoxystrobin and propamocarb on cucumber downy mildew

[0019] Test object: Cucumber downy mildew (Pseudoperonospora cubensis)

[0020] The leaf disk method was used in this test. Use a puncher to punch the well-grown cucumber leaves into leaf disks with a diameter of 1.5 cm, 10 pieces per dish, and repeat 3 times. Inoculate 10 μL of cucumber downy mildew sporangia suspension (containing 50-100 sporangia) on each leaf disc, and place in a light incubator (light time is 16 h, dark time is 8 h, temperature is 18-20 °C) Cultured in medium for 6-8 days, the condition investigation was carried out. Calculate the disease index and control effect, and apply the DPS statistical software to obtain the regression equation of drug toxicity and the inhibitory concentration.

[0021] Cucumber downy mildew classification method is:

[0022] Grading standards

[0023] Grade 0: no disease spots on the leaves;

[0024] Grade 1: Lesion ar...

example 2

[0040] Example 2: Indoor efficacy determination of azoxystrobin and propamocarb on tobacco black shank disease

[0041] Test object: Tobacco blackleg fungus (Phytophthora parasitica)

[0042] The potted method was used in this experiment. Choose tobacco potted plants, and after the seedlings have grown to 5-6 true leaves, select seedlings with similar size, consistent growth, normal leaf shape, and no diseases and insects for later use. Tobacco black shank bacteria with strong pathogenicity were cultured on oat medium at a constant temperature of 28°C for 6 days for later use. Punch the prepared tobacco black shank bacteria with a hole puncher with a diameter of 5 mm, slightly stab the surface of the base of the first leaf of the tobacco plant with an insect needle, stick the bacteria cake on the wound, and dip it in sterile water with sterile absorbent cotton Cover it with moisture, and then place the inoculated seedlings at 28°C to 30°C and cultivate them in an artificial ...

Embodiment 3

[0062] Example 3: 31% azoxystrobin · propamocarb wettable powder

[0063] Composition: Azoxystrobin 30%, propamocarb 1%, alkylbenzene sulfonate 4%, naphthalene sulfonate 8%, white carbon black 6%, kaolin topping 100%.

[0064] Preparation: Mix various active pharmaceutical ingredients, auxiliary ingredients, fillers and other components according to the proportion of the formula, and obtain a wettable powder after conventional dry crushing.

[0065] Application in the prevention and treatment of cucumber downy mildew: the test was carried out with reference to the standards of the People's Republic of China (Guidelines for Field Efficacy Tests of Pesticides). Dilute 31% azoxystrobin · propamocarb wettable powder by 1300 times (the effective concentration of azoxystrobin is 230.3mg / L, the effective concentration of propamocarb is 7.7mg / L) and spray it with water, 7 days and 15 days after the drug The control effects were 86.2%, 81.4%. 250 grams per liter of azoxystrobin suspe...

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PUM

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Abstract

The invention relates to an azoxystrobin-containing sterilization pesticide composition and application thereof. The composition comprises azoxystrobin and propamocarb as effective drug ingredients, and an acceptable auxiliary ingredient in pesticide, wherein the weight ratio of the azoxystrobin and the propamocarb as the effective drug ingredients is 1-50:50-1. The test shows that the two effective drug ingredients in the sterilization pesticide composition have obvious synergic effects, is favorable for delaying the generation of drug resistance, reduces dosage, reduces cost and expands the application scope of the drug.

Description

technical field [0001] The invention relates to a compounded bactericidal pesticide composition and its application. Background technique [0002] Downy mildew is a plant disease caused by downy mildew in fungi. Common downy mildew pathogens can include Sclerospora graminicola that causes millet white disease, and Peronospora parasitica that causes cabbage downy mildew. , B.remiarlactucae which causes lettuce downy mildew, Pseudoperonosporacubensis which causes cucumber downy mildew, etc. Due to changes in farmland ecosystems and increased resistance to plant diseases, the damage of downy mildew has increased in recent years, and it has occurred continuously throughout the country. It has become a serious disease that can cause great losses to a variety of vegetables and food crops. disease. [0003] Although there are many kinds of fungicides currently available for the prevention and treatment of downy mildew, such as 58% metalaxyl manganese zinc wettable powder, 64% ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/12A01N43/54A01P3/00
Inventor 吕嘉李翔
Owner LIER CHEM CO LTD
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