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Broad-spectrum combined bactericide

A composition and pesticide preparation technology, applied in the direction of fungicides, biocides, biocides, etc., can solve the problems of reducing wheat seed setting rate and 1000-grain weight, grape fruit setting, fruit expansion, affecting rice panicle number, grain weight, etc. Achieve the effects of comprehensive prevention and control, promote robust growth, and reduce the number of medications

Inactive Publication Date: 2012-06-06
ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the growth of crops, they are attacked by various diseases, resulting in a decrease in yield and quality
For example, rice blast, sheath blight, rice smut, etc. affect the number of ears and grain weight of rice; wheat powdery mildew, rust, and scab reduce wheat

Method used

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  • Broad-spectrum combined bactericide
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  • Broad-spectrum combined bactericide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The embodiment of pyraclostrobin and epoxiconazole compound fungicide of the present invention and its indoor activity determination on rice sheath blight (Rhizoctonia solani) are as follows:

[0022] The original drug of pyraclostrobin was dissolved in methanol and the original drug of epoxiconazole in acetone to form a mother solution of 1000 μg / ml, and 5% Tween-80 (used as emulsifier and spreading agent) was added. At the same time, samples of different ratios of pyraclostrobin and econazole were prepared with pyraclostrobin and econazole mother liquor, and the ratios of pyraclostrobin: econazole in the samples were 30:1, 20:1, 10:1, 1:1, 1:5, 1:10, 1:20, 1:30.

[0023] Table 1 Inhibitory effects of pyraclostrobin, epoxiconazole and their compound on the mycelium growth of rice sheath blight

[0024]

[0025] Using the drug-containing medium method, pyraclostrobin, epoxiconazole, and samples of various proportions were prepared into dilutions of a certain mass co...

Embodiment 2

[0028] The embodiment of pyraclostrobin and epoxiconazole compound fungicide of the present invention and its indoor activity determination on pear scab (Venturia nashicola) are as follows:

[0029] The original drug of pyraclostrobin was dissolved in methanol and the original drug of epoxiconazole in acetone to form a mother solution of 1000 μg / ml, and 5% Tween-80 (used as emulsifier and spreading agent) was added. At the same time, samples of different ratios of pyraclostrobin and econazole were prepared with pyraclostrobin and econazole mother liquor, and the ratios of pyraclostrobin: econazole in the samples were 30:1, 20:1, 10:1, 1:1, 1:10, 1:20, 1:30, 1:40.

[0030] Table 2 Inhibitory effects of pyraclostrobin, epoxiconazole and their compound on mycelial growth of pear scab

[0031]

[0032]Using the drug-containing medium method, pyraclostrobin, epoxiconazole, and samples of various proportions were prepared into dilutions of a certain mass concentration, and 1ml o...

Embodiment 3

[0034] Embodiment 3: Fungicide of the present invention controls rice sheath blight

[0035] Weigh 5 grams of pyraclostrobin, 25 grams of econazole, 10% of wetting agent, 2% of K12 (sodium lauryl sulfate), and the rest is kaolin as filler. The above raw materials were put into a small airflow mill according to the conventional wettable powder processing method, and were thoroughly pulverized and mixed to prepare 30% pyraclostrobin · epoxiconazole wettable powder.

[0036] 30% pyraclostrobin·epiconazole wettable powder was sprayed with different dosages mixed with water 600 L / ha in the early stage of rice sheath blight, and the experiment was repeated 3 times. The control effect of the preparation on rice sheath blight is shown in Table 3.

[0037] Table 3: Field control effect of 30% pyraclostrobin·epiconazole WP on rice sheath blight

[0038]

[0039] The results showed that the control effect of 30% pyraclostrobin·epiconazole WP on rice sheath blight was significantly h...

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Abstract

The invention relates to a bactericide and its application method. With pyraclostrobin and epoxiconazol as effective components, the bactericide comprises, by mass percent: 40-1% of pyraclostrobin, 1-40% of epoxiconazol, and the balance auxiliary components of pesticide preparations, wherein, pyraclostrobin and epoxiconazol are in a ratio of 30:1-1:40, preferably in a ratio of 1:5-15. With the advantages of broad bactericidal spectrum, strong systematic performance, good quick acting performance, long persistent period, environmental friendliness, the bactericide of the invention is in favor of reducing drug using times and reducing environmental pollution, and can be used for controlling a plurality of diseases in paddy rice, triticeae crops, fruit trees, vegetables and other crops, thus being an ideal drug in integrated control and nuisanceless control.

Description

technical field [0001] The invention relates to a combined fungicide and a method for preventing and controlling diseases thereof, in particular to a compound fungicide of pyraclostrobin and epoxiconazol and an application thereof. Background technique [0002] During the growth process of crops, they are attacked by various diseases, resulting in a decrease in yield and quality. For example, rice blast, sheath blight, rice smut, etc. affect the number of ears and grain weight of rice; wheat powdery mildew, rust, and scab reduce wheat seed setting rate and thousand-grain weight; grape black pox, powdery mildew, anthracnose, etc. The fruit setting and fruit expansion of grapes; pear scab and ring spot also affect the fruit setting of pears, causing pears to rot, which greatly affects the value of pear yield. In order to ensure high and stable yields of crops and high product quality, growers need to use more fungicides to prevent and treat crop diseases during the growth of ...

Claims

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Application Information

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IPC IPC(8): A01N47/24A01N43/653A01P3/00
Inventor 潘以楼朱桂梅杨敬辉陈宏州郭建
Owner ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS