Evaluation of sublethal effects of polymer-based essential oils nanoformulation on the German cockroach, Blatella germanica

WERDIN GONZÁLEZ, J.O; DELRIEUX, C.; YEGUERMAN, C; FERRERO, A. A.; MARCOVECCHIO, D.;; FERNÁNDEZ BAND, B.S

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY

ACADEMIC PRESS INC ELSEVIER SCIENCE

Lugar: Amsterdam; Año: 2016 vol. 130 p. 11 - 18

0147-6513

The Germancockroach, Blattella germanica (L.), isaserioushouseholdandpublichealthpestworldwide.The aimofthepresentstudywastoevaluatethesublethalactivityofpolymer-basedessentialoils(EOs)nanoparticles (NPs)onadultsof B. germanica. The LC50 and LC25 for contacttoxicityweredetermined.ToevaluatetherepellencyofEOsandNPsatLC25, asoftwarewasspeciallycreatedinordertotrackmultipleinsects onjust-recordedvideos,andgeneratestatisticsusingtheobtainedinformation.TheeffectsofEOsand NPsatLC25 and LC50 on thenutritionalphysiologywerealsoevaluated.TheresultsshowedthatNPsexertedsublethaleffectsontheGermancockroach,sincetheseproductsenhancetherepellenteffectsofthe EOsandnegativelyaffectedthenutritionalindicesandthefeedingdeterrenceindex.