Toxicity and Latent Effects of Some Control Agents on Pink Bollworm Pectinophora gossypiella (Saunders)
Abbas, A., Nada, M., El-Sayed, A., Abd-El-Hamid, N., El-Shennawy, R. (2017). Toxicity and Latent Effects of Some Control Agents on Pink Bollworm Pectinophora gossypiella (Saunders). EKB Journal Management System, 10(1), 25-34. doi: 10.21608/eajbsa.2017.12688
Afaf A. Abbas; Mohamed A. Nada; Ali A.A. El-Sayed; Neama, A. Abd-El-Hamid; Rania M.A. El-Shennawy. "Toxicity and Latent Effects of Some Control Agents on Pink Bollworm Pectinophora gossypiella (Saunders)". EKB Journal Management System, 10, 1, 2017, 25-34. doi: 10.21608/eajbsa.2017.12688
Abbas, A., Nada, M., El-Sayed, A., Abd-El-Hamid, N., El-Shennawy, R. (2017). 'Toxicity and Latent Effects of Some Control Agents on Pink Bollworm Pectinophora gossypiella (Saunders)', EKB Journal Management System, 10(1), pp. 25-34. doi: 10.21608/eajbsa.2017.12688
Abbas, A., Nada, M., El-Sayed, A., Abd-El-Hamid, N., El-Shennawy, R. Toxicity and Latent Effects of Some Control Agents on Pink Bollworm Pectinophora gossypiella (Saunders). EKB Journal Management System, 2017; 10(1): 25-34. doi: 10.21608/eajbsa.2017.12688

Toxicity and Latent Effects of Some Control Agents on Pink Bollworm Pectinophora gossypiella (Saunders)

Egyptian Academic Journal of Biological Sciences. A, Entomology
Article 4, Volume 10, Issue 1, February 2017, Page 25-34  XML PDF (639.25 K)
Document Type: Original Article
DOI: 10.21608/eajbsa.2017.12688
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Authors
Afaf A. Abbas1; Mohamed A. Nada2; Ali A.A. El-Sayed2; Neama, A. Abd-El-Hamid1; Rania M.A. El-Shennawy3
1Entomology Department, Faculty of science, Al-Azhar University (Girl branch)
2Plant protection research Institute, ARC, Dokky Giza
3Plant protection research Institute, ARC, Dokky Giza.
Abstract
In the present study, newly hatched larvae of Pectinophora gossypiella, (Lab. Strain) were treated with LC20 values of six insecticides (lambda-cyhalothrine, Mineral oil masrona, indoxacarb, emamectin benzoate, Microbial pesticides Bacillus thuringiensis and chlorfluazuron) (0.0846, 16548.017, 45.252, 0.154, 16043.16 and 3.0178 ppm respectively), to study their effects on duration of larval, pupal, total immature stages and longevity, fecundity and fertility of resulted adults.
The obtained results clear that the larval period prolonged to 21.67, 18.27, 20.42, 15.84, 23.50 and 19.65 days compared to 14.63 days in control; while, pupal period estimated by 10.67, 9.97, 9.27, 13.04, 9.1, 11.86 and 8.84 days in treatments and control, respectively. On the other hand, the adult stage resulted from treated larvae was highly affected by all used compounds. The respective fecundity was reduced to 122.82, 139.51, 134.31, 85.74, 183.7 and 173.57eggs /female for lambda-cyhalothrine masrona, indoxacarb, emamectin benzoate, B. thuringiensis and chlorfluazuron treatments compared to 262.48eggs/♀ in control. The percentages of hatchability were 38.06, 53.43, 65.00, 56.29, 48.65 & 78.97, respectively compared with 96.45 % in control
Keywords
toxicity; Latent effects; control agents; pink bollworm
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