Susceptibility of adult Coccinella septempunctata (Coleoptera: Coccinellidae) to insecticides with different modes of action

Pest Management Science
András Bozsik

Abstract

Five insecticides (pyriproxifen, imidacloprid, deltamethrin + heptenophos, lambda-cyhalothrin and Bacillus thuringiensis Berliner subsp. tenebrionis) were examined in the laboratory for their acute detrimental side-effects at field rates on adult seven-spot ladybird beetle, Coccinella septempunctata L. The toxicity of the preparations was determined by measuring the acute surface contact effects (dried spray on leaves of Philadelphus coronarius L.), except for B. thuringiensis where mixed pollen was treated. Four to six concentrations were tested (pyriproxifen 12.5, 25, 50, 100, 200, 400 mg AI litre(-1); imidacloprid 62.4, 125, 250, 500 mg AI litre(-1); deltamethrin + heptenophos 26.4, 53.1, 106.3, 212.5 mg AI litre(-1); lambda-cyhalothrin 1.1, 3.4, 10, 30 mg AI litre(-1); B. thuringiensis 1.5, 3.0, 12.0, 48, 192, 768 mg AI litre(-1)), with 22 adults exposed per concentration. All tests were conducted in the laboratory of the Plant Protection Department (University of Debrecen, Hungary) at 22-25 degrees C, 40-60% RH, under a 16:8 h light:dark photoperiod in 1998-1999. Data were analyzed by probit analysis, probit transformation and analysis of variance. According to different categories of evaluation, pyriproxifen, imidacloprid...Continue Reading

Citations

Jun 13, 2013·Ecotoxicology and Environmental Safety·M A Radwan, M S Mohamed
Jan 21, 2016·Medical and Veterinary Entomology·D SnyderL W Cohnstaedt
Jun 4, 2011·Journal of Vector Ecology : Journal of the Society for Vector Ecology·Sandra A Allan
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Apr 25, 2007·Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes·Francisco Sánchez-BayoKouichi Goka
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May 15, 2019·Chemosphere·Panagiotis J SkourasJohn T Margaritopoulos
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