The present invention discloses a
paddy field weeding composition, and relates to the technical field of
pesticide compounding, the composition uses iodosulfuron-methyl
sodium salt and
fluroxypyr as effective components, and the weight ratio of the iodosulfuron-methyl
sodium salt to the
fluroxypyr is 0.05-5: 1-80, preferably 0.1-3: 5-40. In the use amount per
hectare, the use amount of the iodosulfuron-methyl
sodium active ingredient is 1.5-45g, the use amount of the
fluroxypyr active ingredient is 75-600g, and a safener can be added if necessary. Through compounding of two herbicides with different action mechanisms, synergistic interaction is realized, broadleaf weeds and
cyperaceae weeds in paddy fields, wheat fields, corn fields and non-cultivated areas are efficiently prevented and removed, and particularly, the weeding composition has an excellent prevention and removal effect on intractable
weed Alternanthera philoxeroides; the herbicide composition can effectively solve the problems of easy generation of resistance, unstable
pesticide effect, complex formulation scheme defects and the like when the existing herbicide is singly used, and is excellent in environmental compatibility and relatively high in
crop safety.