Herbicidal composition with trifloxysulfuron and pyrithiobac-sodium and application thereof

The invention discloses an herbicidal composition with trifloxysulfuron and pyrithiobac-sodium and application thereof.The herbicidal composition uses trifloxysulfuron and pyrithiobac-sodium as effective ingredients, having a weight ratio of 1-60:1-60.The herbicidal composition is useful in post-seedling weeding of cotton fields and is particularly significantly effective in controlling broad-leaved weeds and grassy weeds in cotton fields.Compared with single agents, the herbicidal composition enables improved efficacy, delayed resistance in weeds, broad weeding spectrum and long lasting period and is safe to both cotton and afterculture crops.