Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz (1999) 72, 21-23

H.S. Salama, F.N. Zaki, S.A. Salem and M.S. Foda (1999)
Utilization of Bacillus thuringiensis to control Spodoptera littoralis in Egyptian clover fields
Anzeiger für Schädlingskunde, Pflanzenschutz, Umweltschutz 72 (1), 21-23
Abstract: The efficacy of the commercial product Dipel 2X (Bacillus thuringiensis var. kurstaki), was assessed as a biological control means of the cotton leaf worm Spodoptera littoralis attacking clover cultivations (Trifolium alexandrinum) in Egypt. Field experiments using the biological agent were carried out in two localities as compared with the conventional chemical insecticide lannate. The percentage of reduction in the larval population increased at higher doses of B. t. and the infestation levels reached very low levels, almost similar to those obtained after using lannate.
The yield of the first cut of clover was estimated. The data obtained indicate that the yield significantly increased after treatment with either B. t. or lannate: In Menoufia, the yield was significantly higher after two successive spray applications with B. t. at 750 g/f compared to that obtained with B. t. when used at 500 g/f. In Giza Governorate, the yield was slightly higher after a single treatment with B. t. at 500 g/f as compared with lannate.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): H.S. Salama

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
evaluation - screening - selection

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Spodoptera littoralis	Clover (Trifolium)	Egypt
Bacillus thuringiensis var. kurstaki (entomopathogen)	Spodoptera littoralis	Clover (Trifolium)	Egypt