Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Insect Repellents”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 595 records · Page 33Linked to original sources
PubMed2006

The sensilla of Aedes and Anopheles mosquitoes and their importance in repellency.

The aim of this study was to detect the role of some mosquito organs in their sensation of repellent materials. A total of 250 females (15 days old) of the target species Aedes aegypti and Anopheles stephensi were prepared and divided into five groups: group 1, without antenna; group 2, without maxillary bulbs; group 3, without proboscis; group 4, without frontal tarsus; and group 5, normal females as control. A mixture of five oils containing Litsea cubeba 1%, Melaleuca leucadendron 1%, Melaleuca quinquenervia 1%, Viola odorata 1%, and Nepeta cataria 1% was included in a complex solvent containing 20% genapol, 10% polyethylene glycol, 20% ethanol, and 50% water. Furthermore, Bayrepel was used in this experiment at a 20% concentration in the same solvent. Pure water was used as control in this study. The test was carried out by spreading 100 microl of the repellent material or water on a 30-cm2 exposure area of a human volunteer's arm. In A. aegypti, the biting and landing percentages increased significantly in those mosquito groups that lacked some organs (especially maxillary bulbs), while in A. stephensi, it became not clear which organ is responsible for perception of repellents.

Animal Structures↗
PubMed2006

Field evaluation of New Mountain Sandalwood Mosquito Sticks and New Mountain Sandalwood Botanical Repellent against mosquitoes in North Queensland, Australia.

The mosquito repellent efficacy of New Mountain Sandalwood Mosquito Sticks (containing 0.5% w/w essential oils) and New Mountain Sandalwood Botanical Repellent (containing soybean and geranium oils) was assessed. Tests were conducted in the field with 4 volunteers in a wooded area near Cairns, North Queensland, Australia. Predominant biting species were Verrallina funerea and Ve. lineata. A pair of burning Mosquito Sticks immediately upwind of the subject (acting as an area repellent) provided a 73.1% mean reduction in mosquito landing and probing over the 3-h test period. The Botanical Repellent and a DEET-based control were both 100% effective in preventing mosquito probing for 3 h. These data are consistent with other studies of area repellents in that such products provide significant protection from mosquito bites, albeit inferior to the protection provided by topically applied repellents.

Animals↗
PubMed2001

L-lactic acid as a mosquito (Diptera: Culicidae) repellent on human and mouse skin.

The attraction of Aedes albopictus (Skuse) to hands and forearms of human subjects treated with several concentrations of L-LA solution were studied in a test chamber containing proboscis-amputated mosquitoes. Fewer mosquitoes alighted on L-LA treated human skin than on water-treated control skin. Similar results were found using normal mosquitoes following L-LA and water treatment of mouse skin. The relative repellent effects of L-LA varied with concentration. The minimum repellent concentration was lower than previously reported for human skin. The number of alightments decreased at increasing concentrations of L-LA, demonstrating the absolute repellency of L-LA. Unlike previous reports suggesting that L-LA attracted mosquitoes, our studies using human and mouse skin showed that L-LA exhibited both relative and absolute repellency.

Aedes↗