02407naa a2200313 a 450000100080000000500110000800800410001910000200006024501580008026000090023852015020024765000130174965000210176265000140178365000250179765000140182265000220183665000150185865000120187365300210188570000170190670000270192370000190195070000260196970000190199570000180201470000200203277300410205221517292023-03-24       2023    bl uuuu     u00u1 u    #d1 aCARMO, D. G. do  aEfficacy and residual toxicity of insecticides on plutella xylostella and their selectivity to the predator solenopsis saevissima.h[electronic resource]  c2023  aAbstract: We evaluated the efficacy and residual toxicity of nine commercial insecticides on Plutella xylostella and their selectivity to the predator ant Solenopsis saevissima under laboratory and field conditions. First, to test the insecticides? effectiveness and selectivity, we conducted concentrationresponse bioassays on both species and the mortalities were recorded 48 h after exposure. Next, rapeseed plants were sprayed following label rate recommendations in the field. Finally, insecticidetreated leaves were removed from the field up to 20 days after application and both organisms were exposed to them as in the first experiment. Our concentration-response bioassay indicated that seven insecticides caused mortality ?80% of P. xylostella: bifenthrin, chlorfenapyr, chlorantraniliprole, cyantraniliprole, indoxacarb, spinetoram, and spinosad. However, only chlorantraniliprole and cyantraniliprole caused mortality ?30% of S. saevissima. The residual bioassay indicated that four insecticides had a long-lasting effect, causing mortality of 100% to P. xylostella 20 days after application: chlorantraniliprole, cyantraniliprole, spinetoram, and spinosad. For S. saevissima, bifenthrin caused mortality of 100% during the evaluated period. Additionally, mortality rates below 30% occurred four days after the application of spinetoram and spinosad. Thus, chlorantraniliprole and cyantraniliprole are safe options for P. xylostella management since their efficacy favor S. saevissima.  aBrassica  aChemical control  aFire ants  aPesticide resistance  aPredators  aControle Químico  aInseticida  aToxidez  aDiamondback moth1 aCOSTA, T. L.1 aSANTANA JÚNIOR, P. A.1 aSANTANA, W. C.1 aMARSARO JUNIOR, A. L.1 aPEREIRA, P. S.1 aSANTOS, A. A.1 aPICANÇO, M. C.  tInsectsgv. 14, n. 2, art. 98, 2023.