| abstract |
The invention belongs to the field of pesticides, in particular to a cornfield herbicide composition containing pyrazolone compounds and its application. The cornfield herbicidal composition comprises active ingredient A, active ingredient B, and safener compound C in a herbicidally effective amount, wherein the active ingredient A is one of the following general formulas: R 1 is a hydrogen atom, methyl, etc.; R 2 is methyl, etc.; R 3 is 2,2,2-trifluoroethoxy, etc.; R 4 is a chlorine atom, methyl; R 5 , R 6 , R 7 It is a hydrogen atom, an alkyl group, etc.; the active ingredient B is selected from one or more of the following compounds: 1) triazines; 2) nitriles; 3) sulfonylureas; 4) pyridinecarboxylic acids; 5) Benzene carboxylic acids; 6) bentazone, etc.; safener compound C is isoxadifen, etc. The composition can effectively control barnyardgrass, crabgrass, green foxtail and other weeds in corn fields, and has the characteristics of expanding herbicidal spectrum, reducing application amount, being safe for crops, and being able to solve resistant weeds and the like. |