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Dna Barcoding Distinguishes Pest Species Of The Black Fly Genus Cnephia (Diptera: Simuliidae), I. M. Confitti, K. P. Pruess, A. Cywinska, T. O. Powers, D. C. Currie
Dna Barcoding Distinguishes Pest Species Of The Black Fly Genus Cnephia (Diptera: Simuliidae), I. M. Confitti, K. P. Pruess, A. Cywinska, T. O. Powers, D. C. Currie
Department of Entomology: Faculty Publications
Accurate species identification is essential for cost-effective pest control strategies. We tested the utility of COI barcodes for identifying members of the black fly genus Cnephia Enderlein (Diptera: Simuliidae). Our efforts focus on four Nearctic Cnephia species—Cnephia dacotensis (Dyar & Shannon), Cnephia eremities Shewell, Cnephia ornithophilia (Davies, Peterson & Wood), and Cnephia pecuarum (Riley)—the latter two being current or potential targets of biological control programs. We also analyzed one Palearctic species, Cnephia pallipes (Fries). Although Cnephia adults can be identified anatomically to species, control programs target the larval stage, which is difficult or impossible to distinguish morphologically. By using …
Insect Communities In Soybeans Of Eastern South Dakota: The Effects Of Vegetation Management And Pesticides On Soybean Aphids, Bean Leaf Beetles, And Their Natural Enemies, Jonathan G. Lundgren, Louis S. Hesler, Sharon A. Clay, Scott F. Fausti
Insect Communities In Soybeans Of Eastern South Dakota: The Effects Of Vegetation Management And Pesticides On Soybean Aphids, Bean Leaf Beetles, And Their Natural Enemies, Jonathan G. Lundgren, Louis S. Hesler, Sharon A. Clay, Scott F. Fausti
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Although most pests of soybeans, Gycine max (L.), in the Northern Great Plains are managed using pesticides, farm management practices that encourage biodiversity offer promising long-term, sustainable solutions for controlling insect and weed pests profitably. The recent invasion of the Northern Great Plains by the soybean aphid (Aphis glycines Matsumura; Hemiptera: Aphididae) has had potentially important implications for insect communities in soybeans of this region, although recent descriptions of this regional community are scarce. We describe how three pest management systems that vary in the intensity with which they rely on herbicides and insecticides (chemically intensive, reduced chemical, and …
Pheromonal Control Of The Invasive Brown Treesnake: Potency Of Female Sexual Attractiveness Pheromone Varies With Ovarian State, Tom Mathies, Breanna Levine, Richard M. Engeman, Julie A. Savidge
Pheromonal Control Of The Invasive Brown Treesnake: Potency Of Female Sexual Attractiveness Pheromone Varies With Ovarian State, Tom Mathies, Breanna Levine, Richard M. Engeman, Julie A. Savidge
USDA Wildlife Services: Staff Publications
The female sex pheromone has potential a s a control tool for the Brown Treesnake, Boiga irregularis Merrem, a pest introduced into Guam. We conducted male-guided bioassays to determine whether potency of the female pheromone varied according to reproductive state and during vitellogenesis. In weekly simultaneous choice tests, we presented males with skin lipid samples from vitellogenic females, non-vitellogenic females, conspecific males, and carrier controls. The total time each sample was tongue-flicked was recorded: mean total tongue-flick time was highest for samples from vitellogenic females followed by samples from non-vitellogenic females. Pair-wise comparisons of male tongue-flick time for samples of …