Life Sciences Commons^™

Environmental Parameters Associated With Stable Fly Development At Hay Feeding Sites, Kristina A. Friesen, Dennis R. Berkebile, Brian J. Wienhold, Lisa Durso, Junwei J. Zhu, David B. Taylor

David B. Taylor

Population Genetics And Gene Variation Of Stable Fly Populations (Diptera: Muscidae) In Nebraska, Allen L. Szalanski, David B. Taylor, Richard D. Peterson Ii

David B. Taylor

Genetic variation in stable fly, Stomoxys calcitrans (L.),populations from Nebraska, Canada, and Texas was sampled. Four of 12 allozyme loci were polymorphic, with an average of 1.7 alleles per locus. Observed and expected heterozygosities were 0.086 and 0.070,respectively. Nei's genetic distance between populations averaged 0.001 and ranged from 0.000 to 0.005. Wright's F statistics revealed greater variation within than among populations. Allele frequencies were homogeneous among temporal samples from a single population. Polymerasechain reaction—restriction fragment length polymorphism (PCR—RFLP) analysis of 6.4 kb of the mitochondrial DNA genome with 16 restriction enzymes revealed no variation in stable fly populations from Canada, …

Substrate Properties Of Stable Fly (Diptera: Muscidae) Developmental Sites Associated With Round Bale Hay Feeding Sites In Eastern Nebraska, Brian J. Wienhold, David B. Taylor

David B. Taylor

Residues at sites where stationary feeders were used to provide hay as supplemental forage for cattle during the winter are developmental substrates for immature stable flies, Stomoxys calcitrans (L.), in the central United States. Spatial patterns in physical (substrate depth, temperature, water content), chemical (pH, electrical conductivity [EC_lab], total nitrogen [N] and carbon [C], ammoniacal nitrogen [NH₄-N], extractable phosphorus [P]), and biological (microbial respiration rate) substrate properties for two feeding sites were estimated and the correlations between these properties and adult emergence were characterized. Hay feeding sites had a circular footprint with residues extending ≈7m from …

Dewatered Sewage Biosolids Provide A Productive Larval Habitat For Stable Flies And House Flies (Diptera: Muscidae), Carl W. Doud, David B. Taylor, Ludek Zurek

David B. Taylor

Species diversity and seasonal abundance of muscoid flies (Diptera: Muscidae) developing in biosolid cake (dewatered biosolids) stored at a wastewater treatment facility in northeastern Kansas were evaluated. Emergence traps were deployed 19 May through 20 October 2009 (22 wk) and 27 May through 18 November 2010 (25 wk). In total, 11,349 muscoid flies were collected emerging from the biosolid cake. Stable flies (Stomoxys calcitrans (L.)) and house flies (Musca domestica (L.)), represented 80 and 18% of the muscoid flies, respectively. An estimated 550 stable flies and 220 house flies per square-meter of surface area developed in the biosolid …

Efficacy Of Cyromazine To Control Immature Stable Flies (Diptera: Muscidae) Developing In Winter Hay Feeding Sites, David B. Taylor, Kristina Friesen, Jerry J. Zhu, Kai Sievert

David B. Taylor

Hay mixed with manure and urine residues at sites where hay has been provided as supplemental winter feed for cattle provide an excellent substrate for the development of immature stable flies, Stomoxys calcitrans (L.). Such sites are primary sources of early summer stable flies in the central United States and no effective measures are currently available to control fly development in them. A single application of granular cyromazine in May provided 97% reduction in the number of adult stable flies emerging from hay feeding sites. Stable fly control did not decline during the 12 wk season. A small decline in …