Biological control studies of soft and hard ticks in Egypt

Autor:	Fathy Abdel-Ghaffar, M A Hassanain, M. F. El Garhy, A el-Sharaby, K N Abdel Megeed
Rok vydání:	1997
Předmět:	Veterinary medicine Argas persicus General Veterinary biology Argasidae General Medicine Tick biology.organism_classification Hyalomma dromedarii Microbiology Infectious Diseases Insect Science Bacillus thuringiensis Parasitology Acari Tick Control Ixodidae
Zdroj:	Parasitology Research. 83:209-213
ISSN:	1432-1955 0932-0113
DOI:	10.1007/s004360050235
Popis:	The potential activity of three varieties of Bacillus thuringiensis (kurstaki, israeliensis,and thuringiensis) against the soft tick Argas persicus and the hard tick Hyalomma dromedarii was investigated. Soft ticks succumbed within a period ranging from 36 h to 5 days and hard ticks died at between 48 h and 10 days posttreatment, depending on the dose. Concentrations lethal to 50% of tick populations (LC50 values) indicated that Dipel 2x (B. thuringiensis var. kurstaki) was the most potent, followed by Vectobac (B. thuringiensis var. israeliensis), then HD 703 (B. thuringiensis var. thuringiensis). A. persicus was more affected than H.␣dromedarii by B. thuringiensis varieties. Eggs were mostly affected at 16 and 25 days after deposition for A.␣persicus and H. dromedarii, respectively.
Databáze:	OpenAIRE
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