| 摘要 |
The invention relates to a synergistic pesticidal composition comprising: (a) a pesticidally effective amount of a compound having the formula: <IMAGE> (I) wherein X is chlorine or bromine, Y is trifluoromethyl or trifluoromethoxy and R1 is hydrogen, methyl or ethyl; and (b) a synergistic amount of piperonyl butoxide. |
