Scientists Track Mosquitoes that Transmit Zika and Dengue by County

By Harvey Black As mosquito-borne diseases that were once rare or unseen in the United States are making their presence known in the country, a team of researchers from the Centers for Disease Control and Prevention and Colorado State University is calling for greater efforts to systematically map the presence of the vectors carrying these […]

New Trap Proves Effective Against the Mosquito that Transmits Zika, Dengue, and Chikungunya

By Harvey Black As concern and controversy swirl about the Zika virus, Argentinian researchers have developed a new trap that can be used to effectively monitor and control the Aedes aegypti mosquito, which is the primary transmitter of Zika, dengue, chikungunya, and yellow fever. The trap is described in the Journal of Medical Entomology. The […]

Good News for the Western Bumble Bee, Bombus occidentalis

By Harvey Black Bombus occidentalis used to be the most common bumble bee species in the Pacific Northwest, but in the mid 1990s it became one of the rarest. The reason or reasons for the species decline remain unsolved, but one possibility points to a fungal pathogen known as Nosema bombi. Whatever the causes were […]

Higher Temperatures Impair Efficacy of Permethrin Insecticide

By Harvey Black The effectiveness of an important mosquito-fighting insecticide may be a casualty of global climate change, according to a recent study in the Journal of Medical Entomology. Two researchers from Montana State University, graduate student Shavonn Whiten and Dr. Robert Peterson, have shown that permethrin becomes less effective at killing the yellowfever mosquito […]

Aedes japonicus Mosquitoes Found in Western Canada

By Harvey Black Earlier this year, researchers discovered that Aedes japonicus mosquitoes in southwestern Virginia were capable of carrying La Crosse encephalitis, the leading cause of arboviral encephalitis in children. Now some Canadian entomologists have reported the first appearance of this invasive, disease-carrying mosquito in western Canada. Members of the species were found in a […]