Bactericidal composition

Abstract

The invention discloses a bactericidal composition which comprises a composition body. Active components of the composition body are fludioxonil and prochloraz. The bactericidal composition has the advantages that the fludioxonil is a novel broad-spectrum non-internal-suction pyrrole bactericide, the prochloraz is a broad-spectrum imidazole bactericide with protection and eradiation effects, mechanisms for the prochloraz include inhibiting biological synthesis of germ ergosterol, special effects can be realized for diversified crop diseases due to ascomycetes and deuteromycota, the prochloraz does not have an internal suction property, but certain conduction effects can be realized by the prochloraz; the fludioxonil and the prochloraz have different action mechanisms and different action sites and are free of cross-resistance, and the pesticide resistance of germs can be prevented when the fludioxonil and the prochloraz are mixed with each other; synergistic effects further can be realized by the bactericidal composition, the pesticide application quantities can be reduced, and accordingly the service cost can be lowered; the fludioxonil is high in cost when used individually, but the cost can be obviously lowered when the fludioxonil and the prochloraz are mixed with each other on the premise that the efficacy is guaranteed.

Description

Technical field [0001] The invention relates to a bactericidal composition, in particular to a bactericidal composition containing fludioxonil and prochloraz, which is mainly used for the prevention and treatment of wheat head blight. Background technique [0002] Head blight is an important disease of wheat and barley. It spreads all over the country and has been one of the most serious diseases in wheat areas south of the Huaihe River and the middle and lower reaches of the Yangtze River. In pandemic years, yield losses can reach 10%-40%. In recent years, there have been many pandemics in the wheat areas of the Huanghuaihai Plain, the northwestern wheat areas, and the northeast spring wheat, causing great losses; head blight not only caused a decrease in wheat yield, but also low commodity value, and diseased grains were lost for seed use. And industrial value; at the same time, due to the low-density products of pathogens containing toxins, humans and animals will be poisoned ...

AI Technical Summary

Problems solved by technology

[0004] Prochloraz, an imidazole fungicide; chemical name: N-propyl-N-[2-(2,4,6-trichlorophenoxy)ethyl]-imidazole-1-carboxamide, molecular formula: C15H16C13N302 , with a molecular weight of 376.7; prochloraz is a broad-spectrum fungicide, and is the most active species among carbamoyl imidazoles. It acts by inhibiting the biosynthesis of sterols and has good conductivity. Various diseases caused by fungi and half-knowledge have good effects; the price of this agent is moderate, and it has been widely used in production, but the problem of fungal resistance has become increasingly prominent when it is used alone for a long time; In technology, fludioxonil products are mainly used for seed treatment to prevent and control bakanae disease, root rot, black tuberculosis, etc., as well as to prevent and control gray mold of crops, etc. It is easy to cause serious resistance to the pathogen when used alone, and it can be repeated through different varieties. Compounding is an effective way to prevent and control drug-resistant bacteria; currently there are few varieties of fludioxonil compound agents, especially in the prevention and control of wheat scab. In addition to benzimidazole fungicides such as benzimidazole, there are few other effective pesticides for the control of wheat scab, which cannot meet the needs of production for the control of wheat scab and other crop diseases.

Images