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Boric acid, imidacloprid, and thiamethoxam in sucrose aqueous baits had different delayed toxicities to worker Argentine ants, Linepithema humile (Mayr). The concentrations required to produce an LT50 (time required to produce 50% mortality) within 1-4 d were 3.63-0.55% boric acid, 9.2 x 10(-3) to 7.1 x 10(-4)% imidacloprid, and 3 x 10(-4) to 2 x 10(-5)%(More)
The efficacy of five treatments to control Argentine ants around homes was evaluated. Most effective was a combination of a perimeter spray with fipronil + broadcast application of bifenthrin granules (93% reduction of ants after 8 wks). A sweet water bait with 0.001% imidacloprid provided ≈ 80% reduction of ants for one month. All of the treatments(More)
BACKGROUND Insecticides are commonly used for ant control around residential homes, but post-treatment runoff may contribute to contamination of surface water in urban watersheds. This study represents the first instance where runoff of insecticides was directly measured after applications around single family residences. During 2007, houses were treated(More)
Perimeter treatments with Termidor ® were evaluated for efficacy in reducing outdoor infestations of Argentine ants around homes in southern Cali-fornia. Treatments were applied according to the amended Termidor ® label restrictions, accepted by the California Department of Pesticide Regulation in 2009, limiting applications to the structure and not more(More)
Current control methods for the black carpenter ant, Camponotus pennsylvanicus (De Geer), include the use of remedial and preventative residual sprays as well as toxic baits. We evaluated the acceptance of three baits (Maxforce, Niban, and Baygon) to field colonies of the black carpenter ant in the spring and fall. Maxforce bait granules were more readily(More)
PURPOSE Cat scratch disease is a common infection, particularly in children, and clinicians need to be aware of its potential transmission to humans by arthropod vectors such as fleas and ticks in addition to animal bites and scratches. The absence of a vertebrate bite or scratch does not preclude infection with Bartonella henselae. METHODS Literature(More)
A year-long survey of structural pest ants was conducted by Pest Management Professionals in San Diego, California, and Phoenix, Arizona to determine the species of ants, location of infestations, and types of treatments in residential and commercial accounts. Two short-term surveys were also conducted in Tucson, Arizona, and Tijuana, Mexico to obtain(More)
Insecticide treatments were evaluated for efficacy in reducing outdoor infestations of Argentine ants around homes in southern California. Treatments were applied with the goal of reducing the amount of insecticides applied to control ants. Most effective was an experimental liquid bait formulated with 0.003% thiamethoxam as the toxicant. It reduced the ant(More)
Chagas disease is an emerging infectious disease in North America due to the immigration of individuals from endemic areas. The parasite has been transmitted to patients in non-endemic areas by blood transfusion and organ donation. Only six autochthonous cases have been described in humans in the United States yet the parasite is widespread among native(More)
Anaphylaxis to animal bites and stings poses a significant medical risk of vascular or respiratory reactions that vary according to the patient's response and nature of the insult. Emergency Physicians frequently see patients who complain of an allergic reaction to an animal bite or sting. Although Hymenoptera stings, specifically those of wasps, bees, and(More)