Journal of Medical Entomology (1999) 36, 900-902

Elyes Zhioua, K. Heyer, M. Browning, H.S. Ginsberg and R.A. LeBrun (1999)
Pathogenicity of Bacillus thuringiensis variety kurstaki to Ixodes scapularis (Acari : Ixodidae)
Journal of Medical Entomology 36 (6), 900-902
Abstract: Pathogenicity of the entomopathogenic bacterium Bacillus thuringiensis variety kurstaki de Barjac and Lemille was tested against the black-legged tick, Ixodes scapularis Say. Engorged larvae dipped in a solution of 10⁸ spores per milliliter showed 96% mortality 3 wk after infection. The LC₅₀ value for engorged larvae (concentration required to kill 50% of ticks) was 10⁷ spores per milliliter. B. thuringiensis shows considerable potential as a microbial control agent for the management of I. scapularis.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Database assignments for author(s): Howard S. Ginsberg

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.
	Ixodes scapularis
Bacillus thuringiensis var. kurstaki (entomopathogen)	Ixodes scapularis