Repellency of Mostique EGX-101® Lotion against Aedes albopictus Skuse (Diptera: Culicidae) in the Laboratory

Abstract

Abstract

The repellent activity of Mostique EGX-101® against Aedes albopictus was investigated under laboratory conditions with human volunteers. The percentage repellency increased from 24.6% to 81.4% as the Mostique EGX-101® concentrations increased from 1% to 10%, respectively. The positive controls, 2% neem oil and 0.1% deet, gave repellencies of 86.3% and 93.9%, respectively. The percentage protection of 10% EGX-101® gave 100% protection against Ae. albopictus bites at 1 hour and 88.1% at 2 hours post-application. 7.5% EGX-101® gave 94.3% protection against Ae. albopictus bites at 1 hour and 78.6% at 2 hours post-application. The positive control, 2% neem gave 100% protection at 1 hour and 92.9% at 2 hours post-application; 0.1% deet gave 100% protection at 1 hour and 95.2% at 2 hours post-application. EGX-101® has the potential to be an effective repellent against the dengue vector, Ae. albopictus.

Keywords: repellency; Mostique EGX-101®; lotion; Aedes albopictus