| 摘要 |
A method of combatting insect pests at locations where fish are or are likely to be present in which a composition containing a compound of formula: <CHEM> where R<1> is haloalkyl, R<2> is haloalkyl or halo, X is hydrogen or cyano and Y is halo is used in an amount which is insecticidally effective but non-toxic to fish. The compounds where X is cyano have not been previously been described. A typical compound is that where R<1> is trifluoromethyl, X is cyano and R<2> and Y are both chloro. |
