Click on “Download PDF” for the PDF version or on the title for the HTML version.

If you are not an ASABE member or if your employer has not arranged for access to the full-text, Click here for options.

More than 7 million beef cattle are fed in open-lot feedlots in the Texas High Plains. As urban populations encroach upon rural agricultural communities, concerns about nuisance issues escalate. One of the nuisance concerns for feedlots and nearby neighbors is flying insects. House flies and stable flies are the primary problem insects at feedlots. Not only are flies a nuisance, but certain types of flies can negatively affect animal performance, resulting in lost revenues. During a seven month period in 2000 and 2001, fly populations were monitored at two research feedlots and six commercial feedlots. Insect populations were determined using insect traps (alsynite panels, sticky tape, bait traps). Traps were monitored twice a weak and house flies and stable flies were counted and identified. The predominant fly species were the house fly (Musca domestica) and the stable fly (Stomoxys calcitrans). All sites had fly population peak activity during mid-June through September. The house fly population decreased significantly from 2000 to 2001 due to environmental conditions. Stable fly populations were more prevalent at feedlots with higher head capacities. Data indicate that the house fly population was affected more by an integrated pest management program than the stable fly population.