Evaluation of sublethal effects of polymer-based essential oils nanoformulation on the mechanical vector, Blatella germanica

JORGE WERDIN GONZALEZ; CRISTHIAN YEGUERMAN; DIEGO MARCOVECCHIO; CLAUDIO DELRIEUX; ADRIANA FERRERO; BEATRIZ FERNANDEZ BAND

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY

ACADEMIC PRESS INC ELSEVIER SCIENCE

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

0147-6513

The German cockroach, Blattella germanica (L.), is a serious household and public health pest worldwide. The aim of the present study was to evaluate the sublethal activity of polymer-based essential oils (EOs) nanoparticles (NPs) on adults of B. germanica. The LC50 and LC25 for contact toxicity were determined. To evaluate the repellency of EOs and NPsat LC25, a software was specially created in order to trackmultiple insects on just-recorded and generate statistics using the obtained information. The effects of EOs and NPsatLC25 and LC50 on the nutritional physiology were also evaluated. The results showed that NPs exerted sublethal effects on the German cockroach, since these products enhance the repellent effects of the EOs and negatively affected the nutritional indices and the feeding deterrence index.