Jump to Main Content
Pathogenicity of Bacillus thuringiensis variety kurstaki to Ixodes scapularis (Acari: Ixodidae)
- Zhioua, E., Heyer, K., Browning, M., Ginsberg, H.S., LeBrun, R.A.
- Journal of medical entomology 1999 v.36 no.6 pp. 900-902
- Ixodes scapularis, Bacillus thuringiensis subsp. kurstaki, entomopathogenic bacteria, pathogenicity, mortality, lethal dose, biological control agents, biological control
- Pathogenicity of the entomopathogenic bacterium Bacillus thuringiensis variety kurstaki de Barjac & Lemille was tested against the black-legged tick, Ixodes scapularis Say. Engorged larvae dipped in a solution of 10(8) spores per milliliter showed 96% mortality 3 wk after infection. The LC(50) value for engorged larvae (concentration required to kill 50% of ticks) was 10(7) spores per milliliter. B. thuringiensis shows considerable potential as a microbial control agent for the management of I. scapularis.