Insecticidal Efficiency and Latent Effect of certain IGR Compounds on Cotton Leafworm Spodoptera littoralis (Boisd.) in El-Gemmeiza Agricultural Research Station during season 2011
Hamada, E., Wahba, E., El-Shamy, I. (2013). Insecticidal Efficiency and Latent Effect of certain IGR Compounds on Cotton Leafworm Spodoptera littoralis (Boisd.) in El-Gemmeiza Agricultural Research Station during season 2011. EKB Journal Management System, 4(11), 973-983. doi: 10.21608/jppp.2013.87663
E. G. I. Hamada; E. A. Wahba; I. A. El-Shamy. "Insecticidal Efficiency and Latent Effect of certain IGR Compounds on Cotton Leafworm Spodoptera littoralis (Boisd.) in El-Gemmeiza Agricultural Research Station during season 2011". EKB Journal Management System, 4, 11, 2013, 973-983. doi: 10.21608/jppp.2013.87663
Hamada, E., Wahba, E., El-Shamy, I. (2013). 'Insecticidal Efficiency and Latent Effect of certain IGR Compounds on Cotton Leafworm Spodoptera littoralis (Boisd.) in El-Gemmeiza Agricultural Research Station during season 2011', EKB Journal Management System, 4(11), pp. 973-983. doi: 10.21608/jppp.2013.87663
Hamada, E., Wahba, E., El-Shamy, I. Insecticidal Efficiency and Latent Effect of certain IGR Compounds on Cotton Leafworm Spodoptera littoralis (Boisd.) in El-Gemmeiza Agricultural Research Station during season 2011. EKB Journal Management System, 2013; 4(11): 973-983. doi: 10.21608/jppp.2013.87663

Insecticidal Efficiency and Latent Effect of certain IGR Compounds on Cotton Leafworm Spodoptera littoralis (Boisd.) in El-Gemmeiza Agricultural Research Station during season 2011

Journal of Plant Protection and Pathology
Article 7, Volume 4, Issue 11, November 2013, Page 973-983  XML
Document Type: Original Article
DOI: 10.21608/jppp.2013.87663
View on SCiNiTO View on SCiNiTO
Authors
E. G. I. Hamada; E. A. Wahba; I. A. El-Shamy
Plant Protection Institute, ARC, Dokki , Giza, Egypt
Abstract
During summer season 2011 an experiment was carried out at El  Gemmeiza Agricultural Research Station, Gharbia Governorate to evaluate the efficiency and latent effect of six IGR compounds on 2nd  and 4th  larval instars of cotton leafworm Spodoptera littoralis (Boisd.). The tested compounds were: Caprice, Kingbo, Leveuron, Steward, Virtu and Dimeuron. The efficiency and residual effect proved that these products induced high efficacy in this respect . The Leveuron compound was the most effective compared with other compounds, while Steward recorded the least toxic product on both 2nd  and 4th  instars as the initial effect. Reduction percent at end of larval stage of the 2nd and 4th instar larvae ranged between 100% and 50% for Leveuron and Steward; respectively. Also, results obtained indicated that Caprice, Kingbo and Dimeuron compounds induced high level of reductions of insect population. The residual effect of the tested compounds after 7, 14 and 21 days proved that Leveuron treatment had the highest efficacy against cotton leafworm S. littoralis which ranged between 100% to 88%, while Steward treatment gave the lowest one in both larval stages. The biological aspects of These compounds showed that all treatments succeeded in reducing the weights, the instar period of larvae and the leave consumption for the 4th instar larvae.
Keywords
Spodoptera littoralis; Caprice; Kingbo; Leveuron; Steward; Virtu and Dimeuron
Statistics
Article View: 147