ARS scientists have made two important advancements against African swine fever virus which causes a lethal disease in swine.
Mosquito Repellency Of Pineapple Weed Compounds
Pineapple weed has long been used as a successful insect repellent by indigenous peoples of North America. Scientists at the ARS Natural Products Utilization Research Unit in Oxford, MS, conducted a study to identify chemical constituents responsible for repelling mosquitoes. They found that essential oil from dried pineapple weed deterred mosquitoes from biting as effectively as DEET, which is used in retail mosquito repellent products.
The most active compounds isolated from pineapple weed (alpha-terpineol, spathulenol, and neryl isovalerate) provided complete protection. Neryl isovalerate was discovered here for the first time to have mosquito repellency. Most importantly, this research provides scientific evidence that validates the traditional use of pineapple weed as a biting-insect deterrent and reveals a potential natural alternative to widely used synthetic insect repellents.
Explore Other Discoveries
Advancements Against African SFV
Cattle Fever Tick Control Goes High Tech
Researchers are bringing high-tech tools to the fight against cattle fever ticks along the U.S.-Mexico border and in Puerto Rico.
Keeping Sows Comfortable
Scientists recently looked at the temperature preferences of sows, with an eye toward keeping them more comfortable before and during pregnancy.
Sweet Alternative For Fly Control
Learn how scientists are finding alternatives to chemical insecticides to control flies.
Growing Bigger Fish: A Tough Roe To Hoe
Researchers developed an improved line of trout germplasm that the nation’s second largest commercial egg retailer is selling to trout farmers.
Fly Frass Forms Fabulous Fish Food
A new fish food made from fly frass is helping fish farmers raise larger, healthier catfish.