Bacterial diversity in Amblyomma americanum (Acari: Ixodidae) with a focus on members of the genus Rickettsia.

The lone star tick, Amblyomma americanum (Acari: Ixodidae), is commonly reported from people and animals throughout the eastern U.S. and is associated with transmission of a number of emerging diseases.

Lyme borreliosis in dogs and humans in the USA.

Borrelia burgdorferi sensu stricto is the only established etiologic agent of Lyme borreliosis in dogs and in humans in North America. Lyme borreliosis differs in dogs and humans in terms of clinical outcome following infection, diagnostic approaches, prevention strategies and treatment recommendations. Nonetheless, serologic evidence of exposure of dogs to B.

Comparative studies on effects of three chitin synthesis inhibitors on common malaria mosquito (Diptera: Culicidae).

Toxicities of three chitin synthesis inhibitors (diflubenzuron, nikkomycin Z and polyoxin D) were evaluated using second instars of the common malaria mosquito, Anopheles quadrimaculatus Say (Diptera: Culicidae). Neither nikkomycin Z nor polyoxin D at 50 microg/liter caused significant larval mortality, although they reduced the body weight of the survivors by 20.5 and 33.