Compound plant bactericide for preventing rice bacterial leaf blight

Abstract

A compound plant bactericide for preventing rice bacterial leaf blight comprises at least one auxiliary material applicable to the plant bactericide, 2-amino-5-sulfydryl-1, 3, 4-thiadiazole zinc (I) and 1-(4-(2-quinoxalinyl) phenyl)-5-(2-pyridyl)-1, 4-pentadiene-3-ketone (A4). The mass ratio of the 2-amino-5-sulfydryl-1, 3, 4-thiadiazole zinc (I) to the 1-(4-(2-quinoxalinyl) phenyl)-5-(2-pyridyl)-1, 4-pentadiene-3-ketone (A4) is 1:(0.1-0.2). The dosage form of the compound plant bactericide is selected from one of wettable powder and suspending agents, and the total mass of the compound (I) and the compound (A4) accounts for 15%-30% that of the compound plant bactericide for preventing the rice bacterial leaf blight.

Description

technical field [0001] The invention relates to a composition for controlling rice diseases. Background technique [0002] 2-Amino-5-mercapto-1,3,4-thiadiazole zinc (Chinese name thiazole zinc, first disclosed from Chinese patent document CN1308070A) is a new type of compound used in plant fungicides independently developed by my country, which can be widely used It is used for the control of plant diseases such as rice bacterial blight, but it is reported that thiazole zinc is also a thyroid disruptor, which can cause hyperplasia of thyroid tissue in experimental animals, and its toxicity has obvious dose-effect correlation. In addition, although thiazole zinc is a new type of plant fungicide, with its extensive use for more than ten years, the resistance to rice bacterial blight is gradually increasing, resulting in the need for a larger amount of use to achieve better control effects. [0003] Chinese patent literature CN107602539A discloses a quinoxaline derivative 1-(4-...

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Problems solved by technology

[0002] 2-Amino-5-mercapto-1,3,4-thiadiazole zinc (Chinese name thiazole zinc, first disclosed from Chinese patent document CN1308070A) is a new type of compound used in plant fungicides independently developed by my country, which can be widely used It is used to prevent and control plant diseases such as rice bacterial blight, but it is reported that thiazole zinc is also a thyroid disruptor, which can cause thyroid tissue hyperplasia in experimental animals, and its toxicity has obvious dose-effect correlation

In addition, although thiazole zinc is a new type of plant fungicide, with the extensive use for more than ten years, the resistance to rice bacterial blight is gradually increasing, resulting in the need for a larger amount of use to achieve better control effects

[0003] Chinese patent literature CN107602539A discloses a quinoxaline derivative 1-(4-(2-quinoxalinyl)phenyl)-5-(2-pyridyl)-1,4-pentadiene-3- ketone (A4), and disclose that this compound can be used for preventing and treating tobacco mosaic virus, but in its disclosed experimental data, compound (A4) is relatively poor to tobacco mosaic virus prevention and treatment effect, and its treatment protection and passivation are all far away Lower than that of Ningnanmycin as a comparative drug

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