Residual activity of benzyl benzoate against Dermatophagoides pteronyssinus (Acari: Pyroglyphidae).
The residual effect of a commercial spray containing 2.0% benzyl benzoate against Dermatophagoides pteronyssinus was evaluated in the laboratory. Filter papers treated with benzyl benzoate were dried for 2 hours and placed in Petri dishes. Adult mites were then added and mortality was assessed following 24 hour contact and at succeeding 4 weeks intervals up to week 28 post-treatment using the same treated filter papers. There was 100% mortality at 24 hours post-treatment, declining progressively to 71% by week 28. Probit analysis estimated a median lethal time (LT50) of 59 weeks.
Acarology Unit, Infectious Diseases Research Center, Institute for Medical Research, Jalan Pahang, 50588 Kuala Lumpur, Malaysia. suhaili@imr.gov.my
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Suhaili
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D000818:Animals; D001565:Benzoates; D040002:Dermatophagoides pteronyssinus; D005260:Female; D007306:Insecticides; D007928:Lethal Dose 50; D008297:Male
D001565:Benzoates; D007306:Insecticides; C006723:benzyl benzoate