Toxicological and behavioral effects of Chlorfluazuron on pheromone production and perception of Tribolium castaneum (Coleoptera: Tenebrionidae).
Bakr, R., El-Monairy, O., El-barky, N., El-shourbagy, N. (2010). Toxicological and behavioral effects of Chlorfluazuron on pheromone production and perception of Tribolium castaneum (Coleoptera: Tenebrionidae).. EKB Journal Management System, 2(2), 61-72. doi: 10.21608/eajbsc.2010.16264
Reda F.A. Bakr; Olfat M. El-Monairy; Nehad M. El-barky; Nancy M. B. El-shourbagy. "Toxicological and behavioral effects of Chlorfluazuron on pheromone production and perception of Tribolium castaneum (Coleoptera: Tenebrionidae).". EKB Journal Management System, 2, 2, 2010, 61-72. doi: 10.21608/eajbsc.2010.16264
Bakr, R., El-Monairy, O., El-barky, N., El-shourbagy, N. (2010). 'Toxicological and behavioral effects of Chlorfluazuron on pheromone production and perception of Tribolium castaneum (Coleoptera: Tenebrionidae).', EKB Journal Management System, 2(2), pp. 61-72. doi: 10.21608/eajbsc.2010.16264
Bakr, R., El-Monairy, O., El-barky, N., El-shourbagy, N. Toxicological and behavioral effects of Chlorfluazuron on pheromone production and perception of Tribolium castaneum (Coleoptera: Tenebrionidae).. EKB Journal Management System, 2010; 2(2): 61-72. doi: 10.21608/eajbsc.2010.16264

Toxicological and behavioral effects of Chlorfluazuron on pheromone production and perception of Tribolium castaneum (Coleoptera: Tenebrionidae).

Egyptian Academic Journal of Biological Sciences. C, Physiology and Molecular Biology
Article 8, Volume 2, Issue 2, December 2010, Page 61-72  XML PDF (273.37 K)
Document Type: Original Article
DOI: 10.21608/eajbsc.2010.16264
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Authors
Reda F.A. Bakr1; Olfat M. El-Monairy2; Nehad M. El-barky2; Nancy M. B. El-shourbagy2
11- Entomology Department – Faculty of Science- Ain Shams University
2Entomology Department – Faculty of Science- Benha University
Abstract
Chlorfluazuron (Atabron) is an insect growth regulator (IGR) belongs to benzoylphenyl urea for controlling the major insect pests. The present work aims to investigate the toxicological and biological effects of Chlorfluazuron on the 4th larval instar of rust red flour beetle, Tribolium castaneum at different concentrations (0.1, 0.5, 1, 5 and 10 ppm) under laboratory conditions. The results revealed high significant mortality in larvae, pupae and adults. The obtained results showed significant decrease in adult emergence, fecundity and fertility. Chlorfluazuron caused also a significant prolongation in larval and pupal developmental period.
When 4th larval instar treated with LC50 value of Chlorfluazuron (1.2ppm) female production and male's perception to pheromone affected. The results indicated that both treated and untreated sexes of the rust red flour beetle could secrete a pheromone that was able to stimulate the opposite sex as well as its own sex. Although production and responsiveness of pheromone in untreated groups were significantly higher than treated one. Females secreted a pheromone that stimulated males is sex pheromone. While the pheromone secreted by males is an aggregation pheromone.
Production and responsiveness to pheromone in untreated virgin sexes was significantly higher than treated one at photophase and scotophase. The  maximum production and perception of pheromone in untreated sex were at 15.00 p.m. While a peak in treated one was at 13.00p.m.
Keywords
Tribolium castaneum; chlorfluazuron; pheromone production and perception
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