Use of substituted heterocyclic compounds to control sea lice on fish

摘要

The present invention relates to the use of compounds of formula;
wherein the variables are as defined in the description, in the free form or in salt form, for controlling sea lice on fish.

主权项

1. A method of controlling sea lice in and on fish, which comprises treating the sea lice by an in-feed treatment, wherein an active substance is added to the feed provided to the fish, said active substance being a compound of formulaor wherein R′, R″ and R′″ are each H, halogen or trifluormethyl, subject to the proviso that at least one of R′, R″ and R″′ is not H; R5 is methyl, halogen, CF3 or cyano; Q is a radical selected from the group consisting of: (q8) —C(O)NH—CH2—C(O)NH—CH2CF3, (q9) —C(O)NH—CH2—C(O)NH—CH2CN, (q10) —C(O)NH—CH2—C(O)NH—CH2C≡CH, (q11) —C(O)NH—C═N—O—CH3, (q12) —C(O)N═C—N(CH3)2, (q13) —C(O)N═C(NH2)—O—CH3, (q14) —CH2—NH—C(O)—C1-C3-alkyl, (q15) —CH2—NH—C(O)-cyclopropyl, (q16) —CH2—NH—C(O)—C1-C2-haloalkyl, (q17) —CH2—NH—C(O)—CH2—S—C1-C2-alkyl, (q18)—CH2—NH—C(O)—CH2—S(O)2—C1-C2-alkyl, and (q19) —CH2—NH—C(O)—(CH2)1-2—O—C1-C2-alkyl;
and wherein Q′ is a radical (q2) to (q19) above.