T he spread of the Zika virus is raising fears that the virus’s most heartbreaking consequencebabies with microcephaly born to infected motherswill affect the U.S. and other countries as it has affected Brazil. The virus hitches a ride with Aedes aegypti mosquitoes, whose preference for biting humans makes them an ideal vector for transferring virus from one victim to another. Repellents are ...

This note reports studies conducted in Australia to study the effectiveness of a new mosquito repellent formulation containing 20% N,N-diethyl-m-toluamide (deet) and 0.5% permethrin in a bar of soap. The active ingredients are not new. Deet has gained wide acceptance and is used in many countries throughout the world (Rutledge et al. 1978a). Its effects against many arthropod species have been ...

In the present study solid dispersions of the antifungal drug Ketoconazole were prepared with Pluronic F-127 and PVP K-30 with an intention to improve its dissolution properties. Investigations of the properties of the dispersions were performed using release studies, Differential scanning calorimetery (DSC), X-ray powder diffraction (XRD) and Fourier transform infrared (FTIR). The results obta...

The aim of the study was to find level repellent effect two chemical substances (DEET and 2-Undecanone) essential oils (from Allium sativum Eucalyptus oil) on Western corn rootworm (WCR), Diabrotica virgifera LeConte, 1868 in field conditions. Repellents were used area 5 x 4 meters with four replications. They applied as a solution 700 ?l chemical/essential oil one litter water. TWEEN 80 surfac...

In this study we evaluated and reported repellent effects of essential oils from Thai plants against 4 mosquito vectors: Aedes aegypti, Ae. albopictus, Anopheles. dirus and Culex quinquefasciatus under laboratory conditions using human volunteers. The essential oils were extracted from 18 plant species, belonging to 11 families, and the oils were then prepared as 10% solution in absolute ethano...

The potential attractant l-octen-3-ol and 3 potential repellents were assayed for activity for Culicoides sonorensis, the primary vector of bluetongue virus in North America. Collections using octenol were low, but numbers in suction traps were greater in the high-octenol treatment (11.5 mg/h) than in the low-octenol treatment (1.2 mg/h) or unbaited control for both sexes. Collections using hig...

Volatile oils extracted by steam distillation from four plant species turmeric (Curcuma longa), kaffir lime (Citrus hystrix), citronella grass (Cymbopogon winterianus) and hairy basil (Ocimum americanum)), were evaluated in mosquito cages and in a large room for their repellency effects against three mosquito vectors, Aedes aegypti, Anopheles dirus and Culex quinquefasciatus. The oils from turm...

IR3535, KBR3023, para-Menthane-3,8-diol (PMD), and deet were evaluated in controlled studies with human subjects (n = 5) for repellency to black salt marsh mosquitoes (Ochlerotatus taeniorhynchus Wiedemann), in the Everglades National Park, FL. In tests of 6-h duration, with an average mosquito biting pressure on exposed forearm skin of 19.5 (+/- 13.7) bites per minute, the mean percent repelle...