Premium
Effects of three modern insecticides, pyriproxyfen, spinosad and tebufenozide, on survival and reproduction of Chrysoperla carnea adults
Author(s) -
MEDINA PILAR,
BUDIA FLOR,
ESTAL PEDRO,
VIÑUELA ELISA
Publication year - 2003
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.2003.tb00229.x
Subject(s) - pyriproxyfen , spinosad , biology , chrysoperla carnea , toxicology , ingestion , fecundity , hatching , lufenuron , zoology , pesticide , chrysopidae , larva , population , botany , agronomy , medicine , neuroptera , biochemistry , environmental health
Summary Three novel insecticides, pyriproxyfen, spinosad and tebufenozide, were evaluated for their effect on survival and reproduction of Chrysoperla carnea adults using two methods of exposure: direct contact and ingestion. Pyriproxyfen and tebufenozide proved to be harmless to adult survival, whereas spinosad 72 h after treatment reduced the number of adults by 39.8% and 87.2% in topical and ingestion treatment at the maximum concentration recommended (800 mg a.i. litre −1 ). Fecundity was not affected irrespective of the insecticide or time of application (before or after the onset of oviposition). Concerning fertility, only pyriproxyfen exerted a negative effect on hatching when the eggs were deposited by females treated by ingestion in the post‐oviposition period at the highest concentration tested (150 mg a.i. litre −1 ).