Use of tetramic acid derivatives for fighting insects of familiy of Thripidae

摘要

Tetramic acid derivatives (I) are used to control insects of the family Coleoptera, Thysanoptera, Hemiptera, Diptera or Auchenorrhynchae. Tetramic acid derivatives of formula (I) are used to control insects of the family Coleoptera, Thysanoptera, Hemiptera, Diptera or Auchenorrhynchae. X : halo, alkyl, alkoxy, haloalkyl, haloalkoxy or CN; W', Y', Z : H, halo, alkyl, alkoxy, haloalkyl, haloalkoxy or CN; A : H, optionally halo-substituted alkyl or alkoxyalkyl or optionally substituted (hetero)cycloalkyl; B' : H or alkyl, or C(A)(B') : an optionally substituted (un)saturated (hetero)cyclic group; G : H, COR 1>, C(L)MR 2>, SO 2R 3>, P(L)R 4>R 5>, E or C(L)NR 6>R 7>; E : a metal ion or ammonium; L, M : O or S; R 1>alkyl, alkenyl, alkoxyalkyl, alkylthioalkyl or polyalkoxyalkyl, all optionally substituted with halo; optionally heteroatom-containing cycloalkyl optionally substituted with halo, alkyl or alkoxy; or phenyl, phenylalkyl, heteroaryl, phenoxyalkyl or heteroaryloxyalkyl, all optionally substituted; R 2>(halo)alkyl, (halo)alkenyl or optionally substituted cycloalkyl, phenyl or benzyl; R 3>-R 5>alkyl, alkoxy, (di)alkylamino, alkylthio, alkenylthio or cycloalkylthio, all optionally substituted with halo; or optionally substituted phenyl, benzyl, phenoxy or phenylthio; R 6>, R 7>H; alkyl, cycloalkyl, alkenyl, alkoxy or alkoxyalkyl, all optionally substituted with halo; or optionally substituted phenyl or benzyl; or NR 6>R 7> is a ring optionally interrupted by O or S. [Image] ACTIVITY : Insecticide. In a test, capsicum plants were treated with 3-(2,5-dimethylphenyl)-4-ethoxycarbonyloxy-8-methoxy-cis-1-azaspiro[4.5]dec-3-en-2-one at a rate of 60 g/ha. Control of Frankliniella occidentalis nymphs was 71% after 17 days and 85% after 21 days. Corresponding values for acrinathrin were 98% and 91%. MECHANISM OF ACTION : None given.