The invention relates to a germicidal composition, and particularly relates to a germicidal composition which comprises effective
active components of
coumoxystrobin, and one selected from thifluzamide, tricyclazole, isoprothiolane, fenoxanil, and
kasugamycin, wherein the amount ratio is 1:30-10:1. The invention can be prepared into agriculturally acceptable dosage forms of
wettable powder, and
suspending agents. The invention has reasonable components, good germicidal
efficacy, and low preparation cost; the activity and germicidal
efficacy are not simple addition of the activity of each component; compared with existing single preparation, the invention not only has significant germicidal
efficacy, but also has significant synergism, can
delay the generation of resistance, has less preparation residues, causes no
contamination to crops, has good safety, meets safety requirements for
pesticide preparations, and has significant
control effect on rice blast and rice
sheath blight.