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Bactericide for controlling fungal diseases of rice

A fungal and fungicide technology, applied in the field of fungicides for preventing and controlling fungal diseases of rice, can solve problems such as poor sheath blight activity, and achieve the effects of reducing the number of uses, reasonable components and good crop safety.

Inactive Publication Date: 2013-12-18
安徽嘉联生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Prochloraz has high activity against rice blast, but poor activity against rice false smut and sheath blight

Method used

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  • Bactericide for controlling fungal diseases of rice
  • Bactericide for controlling fungal diseases of rice
  • Bactericide for controlling fungal diseases of rice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Weigh 10% thifuramide raw powder, 10% triadimefon raw powder, 20% prochloraz raw powder, 5% calcium dodecylbenzenesulfonate, 5% sodium lignosulfonate, 30% white carbon black , 20% attapulgite were mixed, jet crushed to obtain 40% thiophene · ketone · prochloraz wettable powder.

Embodiment 2

[0021] Weigh 10% thifuramide original powder, 10% triadimefolone original powder, 20% prochloraz original powder, 5% naphthalenesulfonate, 5% ethylene glycol, 0.5% xanthan gum, 1% sodium benzoate, Make up the rest to 100% with water, mix the above raw materials, disperse with high-speed shear for 30-40 minutes, and use a sand mill to prepare a 40% thioxanthone prochloraz suspension.

Embodiment 3

[0023] Weigh 10% thifuramide original powder, 10% triadimefon original powder, 20% prochloraz original powder, 5% calcium dodecylbenzenesulfonate, 5% sodium lignosulfonate, and make up the remainder with kaolin to 100%, the above raw materials are mixed, pulverized by ultra-fine airflow, and then mixed again, granulated, dried, and sieved to obtain 40% thioxanthone prochloraz water-dispersible granules.

[0024] In order to study the synergistic effect of the combination of thifuramide, triadimefon and prochloraz on rice sheath blight, rice smut and rice blast, the following experiments were carried out:

[0025] Test drug: 96% Thiofuramide original drug (Nissan Chemical Industry Co., Ltd.)

[0026] 95% triadimefon raw powder (Shanghai Shenglian Chemical Co., Ltd.)

[0027] 98% prochloraz technical (Shenyang Kechuang Chemicals Co., Ltd.)

[0028] 5 concentration gradients of Thiofuramide (μg / mL): 80, 40, 20, 10, 5

[0029] 5 concentration gradients of triadimefon (μg / mL): 2...

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PUM

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Abstract

The invention discloses a bactericide for controlling fungal diseases of rice. The bactericide is characterized by comprising effective components of thifluzamide, triazolone and prochloraz, wherein the weight ratio of the thifluzamide, the triazolone and the prochloraz is (1-4):1:(1-4); the bactericide can be prepared into wettable powder, water dispersible granules or a suspending agent. The bactericide can be used for controlling rice sheath blight disease, rice false smut and rice blast, is reasonable in components, has the functions of treatment and protection, is good in sterilizing effect, can reduce the use times, reduces the drug cost, has good synergism, slows down the generation of resistance, is good in safety to crops and is in accordance with the requirements on the safety of pesticide preparation.

Description

technical field [0001] The invention relates to a fungicide for preventing and treating rice fungal diseases, belonging to the technical field of chemical pesticides. Background technique [0002] Sheath blight, rice false smut, and rice blast are known as the three major fungal diseases of rice, which occur every year, causing a large reduction in rice production, affecting rice quality, and bringing great economic losses to farmers. In the actual disease control work, there are still few agricultural fungicidal compositions on the market that can simultaneously control the above three common and other comprehensive fungal diseases of rice at one time, and the cost is relatively high. the extent of the problem. Thiofuramide is a fungicide with special effects on rice sheath blight, but its activity on rice blast is average, and the cost is high, and it is easy to produce drug resistance when used alone. Triadimefon is a triazole fungicide with high efficiency, low toxicit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/38A01P3/00A01N47/02A01N43/653
Inventor 严肃王坤杨宝香
Owner 安徽嘉联生物科技有限公司