Comparative toxicity of four pyrethroid insecticides against red palm weevil, Rhynchophorus ferrugineus (Olivier) under laboratory conditions
Abo-El-Saad, M., Ajlan, A., Shawir, M., Abdulsalam, K., Rezk, M. (2009). Comparative toxicity of four pyrethroid insecticides against red palm weevil, Rhynchophorus ferrugineus (Olivier) under laboratory conditions. EKB Journal Management System, 9(3), 63-76. doi: 10.21608/jpces.2009.459628
M. M. Abo-El-Saad; A. M. Ajlan; M. S. Shawir; K. S. Abdulsalam; M. A. Rezk. "Comparative toxicity of four pyrethroid insecticides against red palm weevil, Rhynchophorus ferrugineus (Olivier) under laboratory conditions". EKB Journal Management System, 9, 3, 2009, 63-76. doi: 10.21608/jpces.2009.459628
Abo-El-Saad, M., Ajlan, A., Shawir, M., Abdulsalam, K., Rezk, M. (2009). 'Comparative toxicity of four pyrethroid insecticides against red palm weevil, Rhynchophorus ferrugineus (Olivier) under laboratory conditions', EKB Journal Management System, 9(3), pp. 63-76. doi: 10.21608/jpces.2009.459628
Abo-El-Saad, M., Ajlan, A., Shawir, M., Abdulsalam, K., Rezk, M. Comparative toxicity of four pyrethroid insecticides against red palm weevil, Rhynchophorus ferrugineus (Olivier) under laboratory conditions. EKB Journal Management System, 2009; 9(3): 63-76. doi: 10.21608/jpces.2009.459628

Comparative toxicity of four pyrethroid insecticides against red palm weevil, Rhynchophorus ferrugineus (Olivier) under laboratory conditions

Journal of Pest Control and Environmental Sciences
Volume 9, Issue 3, December 2009, Pages 63-76    PDF (612.07 K)
Document Type: Original Article
DOI: 10.21608/jpces.2009.459628
Authors
M. M. Abo-El-Saad* 1; A. M. Ajlan1; M. S. Shawir2; K. S. Abdulsalam2; M. A. Rezk2
1Plant Protection Dept., College of Agriculture and Food Sciences, King Faisal University
2Plant Protection Dept., College of Agriculture and Food Sciences, King Faisal University.
Abstract
Field strain of different stages of Rhynchophorus ferrugineus were collected from Al-Hassa, in Eastern Province, Saudi Arabia. Four different pyrethroid insecticides were evaluated against larval and adult (male & female) stages of R. ferrugineus (Olivier) under laboratory conditions. All stages were exposed to the treated sugarcane pieces in different concentrations of the following synthetic pyrethroids; permethrin (Type I), cypermethrin, deltamethrin and fenvalerate (Type II). Percent mortality of each stage was recorded after 24 and 48 hr of insecticide exposure. The data showed that cypermethrin was more potent after 24 hr when compared to the other insecticides against males and females in the order of cypermethrin > permethrin > deltamethrin > fenvalerate. By increasing exposure time for the insecticides up to 48 hr, permethrin exhibited knockdown effect on both male and female adults, since the LC50 value was increased from 52.4 ppm at 24 hr to 175.3 at 48 hr for males and from 85.1 ppm to 147.7 ppm for females. In conclusion, values of LC50 revealed that cypermethrin were the most effective synthetic pyrethroid on male and female adults after 24 hr when compared to the other compounds. Moreover, the results were discussed in view of structure-activity relationship of these compounds and their insecticidal activity against red palm weevil.
Statistics
Article View: 1