Arab Journal of Plant Protection (2006) 24, 107-111
R. Aboud, M. Ahmed and N. Abou Kaf (2006)
[Evaluation of the efficiency of the coccinelllid Serangium parcesetosum Sicard (Coleoptera: Coccinellidae) for controlling Bemisia tabaci Genn. (Homoptera: Aleyrodidae)]
Arab Journal of Plant Protection 24 (2), 107-111
Abstract: A study was conducted to evaluate the efficiency of the predator Serangium parcesetosum to control Bemisia tabaci Genn. Adults of B. tabaci (large numbers) were introduced on caged eggplants (Solanum melngena L.). followed by the introduction of S. parcesetosum within three weeks at weekly intervals at the rate of 0, 3, 6 adults/plant. The number of whitefly stages was increased in treated cages until the third week, and then began to decrease from about 12 immature stages/1 cm2 leaf to 0.44 seven weeks Later. Whereas, the density of whitefly population in the control treatment increased 3 fold during the same period. The density of the coccinellid larvae reached the peak on the 5th week (6.6 ± 3, 9 larvae per plant) in the treatment with 3 adults per plant, and 16.6 ± 7.4 larvae per plant in the treatment with 6 adults per plant. The number of predator adults reached the peak at the end of the 7th week (14.1 ± 1.8 and 8.3 ± 0.8 adults per plant in the first and the second treatments, respectively). Data obtained in the present work showed that, the predator S. parcesetosum when released at the rate of 3 adults/plant proved to be an efficient biological control agent for B. tabaci on caged eggplants.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Arabic)
Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection
Pest and/or beneficial records:
| Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
|---|---|---|---|---|
| Bemisia tabaci | Eggplant (Solanum melongena) | |||
| Serangium parcesetosum (predator) | Bemisia tabaci | Eggplant (Solanum melongena) |
