2013 Annual Report
1a.Objectives (from AD-416):
The objective of this cooperative project is to confirm efficacy of treated materials to kill stable flies over extended periods of time under laboratory and field conditions.
Phase 2 - objective is to confirm efficacy of treated materials to kill stable flies and prevent them from entering animal production units in the field.
1b.Approach (from AD-416):
Insecticide-treated fabrics will be bioassayed in the laboratory to obtain LT50s for each fabric type. Fabrics will be placed in the field around livestock research facilities in Ghana, Kenya and other African countries for management of biting flies.
Phase 2 - Insecticide-treated fabrics will be placed around tethered livestock in semi-field conditions and monitored for management of stable flies.
This work directly relates to inhouse objective 1. Provide better tools for surveillance and risk assessment by: studying house fly feeding behavior, resource location, and nutrition under field conditions; developing more efficient stable fly attractants; studying specific behaviors of adults; and determining the risk of introduction of Stomoxys species other than calcitrans and prioritize the risk of other potentially invasive fly species, including traps that sample across the entire population of adults and produce results with quantifiable error terms.
Behavioral response of flies exposed to selected surfaces and surfaces treated with behavior-altering chemicals, such as attractants, repellents and pesticides. Research is in cooperation with Vestergaard-Frandsen, Switzerland. Insecticide-treated fabrics are being placed in the field around livestock facilities in the African countries Ghana, Nigeria, Kenya, Senegal, DRC and Uganda for management of biting flies. Research takes place by in-country visits by the ARS scientist, visits to the U.S. by Vestergaard Frandsen personnel, informal conferences at national and international entomology meetings, and by phone and internet exchanges. Bioassays are underway and the second trip to African study sites has been scheduled. Research is in cooperation with Vestergaard-Frandsen, Switzerland, and the objective is to determine the efficacy of treated fencing in the U.S. at a dairy near Lincoln, NE (added a co-PI from USDA, ARS in Lincoln, NE) and in focused studies with calves in Gainesville, FL. Year 1 of the study near Lincoln is almost completed and studies in Gainesville will proceed after approval of animal use permits.