Entomology Commons^™

Observations Of Oviposition Behavior Among North American Tiger Beetle (Coleoptera: Carabidae: Cicindelinae) Species And Notes On Mass Rearing, Mathew L. Brust, C. Barry Knisley, Stephen M. Spomer, Kentaro Miwa

University of Nebraska State Museum: Entomology Papers

Although the larvae of a large number of North American tiger beetle species have been described, little information exists on the oviposition behavior of female tiger beetles at the species level. In this study, we found that the oviposition behavior varied widely among species, with some species utilizing more than one method. We found that, contrary to many references, several tiger beetle species did not oviposit from above the soil surface by inserting the ovipositor into the soil. Instead, several species oviposited by tunneling over 20 mm below the soil surface. In addition, we outline recently used successful protocols for …

The Pentatomidae, Or Stink Bugs, Of Kansas With A Key To Species (Hemiptera: Heteroptera), Richard J. Packauskas Ph.D.

Biological Sciences Faculty Publications

Forty eight species of Pentatomidae are listed as occurring in the state of Kansas, nine of these are new state records. A key to all species known from the state of Kansas is given, along with some notes on new state records.

Breeding Biology And Incremental Benefits Of Outcrossing For The Restoration Wildflower, Hedysarum Boreale Nutt. (Fabaceae), Katharine A. Swoboda-Bhattarai, James H. Cane

Department of Entomology: Faculty Publications

Northern sweetvetch (Hedysarum boreale Nutt.) is an herbaceous perennial legume of the Rocky Mountains, USA, whose seed is desired for rehabilitating degraded plant communities. Through experimental pollinations, the necessity of pollinators was shown by the failure of autogamy, despite stigmas first becoming receptive in the bud in close proximity to the dehiscing anthers. Nonetheless, the species proved to be self-fertile, initiating as many fruits through selfing as outcrossing. Incremental benefits of outcrossing only later manifested in superior fruit development, seed maturation and seed germination. Farming of H. boreale can yield abundant viable seed if adequately visited by pollinating bees.

Letter From The Dean, Michael Vayda

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Economic Impact Of Stable Flies (Diptera: Muscidae) On Dairy And Beef Cattle Production, David B. Taylor, Roger D. Moon, Darrell R. Mark

Department of Agricultural Economics: Faculty Publications

Stable flies, Stomoxys calcitrans (L.), are among the most damaging arthropod pests of cattle worldwide. The last estimate of their economic impact on United States cattle production was published 20 yr ago and placed losses at $608 million. Subsequently, several studies of effects of stable flies on beef cattle weight gain and feed efficiency have been published, and stable flies have become increasingly recognized as pests of cattle on pasture and range. We analyzed published studies and developed yield-loss functions to relate stable fly infestation levels to cattle productivity, and then estimated the economic impact of stable flies on cattle …

Seed Reduction In Prairie Cordgrass, Spartina Pectinata Link., By The Floret-Feeding Caterpillar Aethes Spartinana (Barnes And Mcdunnough), Jarrad R. Prasifka, D. K. Lee, Jeffrey Bradshaw, Allen S. Parrish, Michael E. Gray

Panhandle Research and Extension Center

Insect damage to prairie cordgrass, Spartina pectinata Link., is conspicuously high in Illinois, where attempts to collect native seed show the majority of spikelets damaged with small holes. Dissection of spikes during summer reveals minute caterpillars boring though glumes and feeding on florets inside. In 2009–2010, panicles of prairie cordgrass from across its native range were used to estimate the percentage of insect-related damage and losses to seed production. Collections of caterpillars from panicles and stems were used to identify one floret-feeding species, estimate its distribution in the central USA, and assess its feeding patterns within spikes. Insect feeding damaged …

On-Plant Movement And Feeding Of Western Bean Cutworm (Lepidoptera: Noctuidae) Early Instars On Corn, Silvana L. Vieira De Paula Moraes, Thomas E. Hunt, Robert J. Wright, Gary L. Hein, Erin E. Blankenship

Department of Entomology: Faculty Publications

Western bean cutworm, Striacosta albicosta (Smith), has undergone a recent eastward expansion from the western United States Corn Belt to Pennsylvania and parts of Canada. Little is known about its ecology and behavior, particularly during the early instars, on corn (Zea mays L.). There is a narrow treatment window for larvae, and early detection of the pest in the field is essential. An understanding of western bean cutworm larval feeding and early-instar dispersal is essential to understand larval survival and establishment in corn. Studies were conducted in 2009 through 2011 in Nebraska to determine the feeding and dispersal of …

Distribution Of Genes And Repetitive Elements In The Diabrotica Virgifera Virgifera Genome Estimated Using Bac Sequencing, Brad S. Coates, Analiza P. Alves, Haichuan Wang, Kimberly K. O. Walden, B. Wade French, Nicholas J. Miller, Craig A. Abel, Hugh M. Robertson, Thomas W. Sappington, Blair D. Siegfried

Department of Entomology: Faculty Publications

Feeding damage caused by the western corn rootworm, Diabrotica virgifera virgifera, is destructive to corn plants in North America and Europe where control remains challenging due to evolution of resistance to chemical and transgenic toxins. A BAC library, DvvBAC1, containing 109,486 clones with 104 ± 34.5 kb inserts was created, which has an ~4.56X genome coverage based upon a 2.58 Gb (2.80 pg) flow cytometry-estimated haploid genome size. Paired end sequencing of 1037 BAC inserts produced 1.17Mb of data (~0.05% genome coverage) and indicated ~9.4 and 16.0% of reads encode, respectively, endogenous genes and transposable elements (TEs). …

Splendid Hybrids: The Effects Of A Tiger Beetle Hybrid Zone On Apparent Species Diversity, Mathew L. Brust, W. Wyatt Hoback, Stephen M. Spomer

Department of Entomology: Faculty Publications

Nonexpert citizen groups are being used to monitor species to track ecosystem changes; however, challenges remain for proper identification, especially among diverse groups such as beetles. Tiger beetles, Cicindela spp., have been used for biological diversity monitoring because of their diversity and the ease of recognition. The finding of an apparent hybrid zone among Cicindela denverensis Casey, Cicindela limbalis Klug, and Cicindela splendida Hentz in central Nebraska prompted a detailed study of the biogeography of this species group within Nebraska, a test of characteristics that could be used by citizen scientists, and limited breeding experiments. This study suggests that while …

Bean Leaf Beetle And Soybean Aphid Control Using Foliar Treatments In A Certified-Organic Operation—Neely-Kinyon Trial, 2010-2011, Andrea Mckern

Department of Entomology: Distance Master of Science Projects

Summary of Project

Goal: The goal of this project is to find effective management treatments for the bean leaf beetle (Cerotoma trifurcata) and soybean aphid (Aphis glycines) for use in certified-organic soybeans. The bean leaf beetle is one of the major vectors of bean pod mottle virus, which causes seed staining and can cause a downgrading of the soybeans at market from food grade to feed grade. Feeding from the soybean aphid causes stunted plants, reduced pods and seeds, and can transmit viruses that cause mottling and distortion of the leaves and a reduced seed set. …

Population Structuring And Transmission Dynamics Of A Laboratory Colony Of Gromphadorholaelaps Schaeferi: A Symbiotic Mite Of The Madagascar Hissing Cockroach Gromphadorhina Portentosa, D. J. Richardson

Journal of the Arkansas Academy of Science

Gromphadorholaelaps schaeferi is a symbiotic mite associated with the Madagascar hissing cockroach Gromphdorhina portentosa. The population structuring of G. schaeferi is described based on examination of 19,421 mites collected from 1,915 individuals of G. portentosa taken from a large laboratory colony. The mites exhibited an overall prevalence of 50.7% and mean intensity (+SE) of 20.0 (+0.6) with an infestation intensity range of 1-116, and relative abundance (+SE) of 10.1 (+0.4). Both prevalence and mean intensity of infestation exhibited a dramatic increase with increasing cockroach size/age. By the time cockroaches reach 40 mm the prevalence is nearly 100%. Mean intensity increases …

New Geographic Distribution Records For Horsehair Worms (Nematomorpha: Gordiida) In Arkansas, Including New State Records For Chordodes Morgani And Paragordius Varius, H. W. Robison, C. T. Mcallister, B. Hanelt

Journal of the Arkansas Academy of Science

No abstract provided.

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 13 2012, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Biology Department Newsletter, No.2, Sacred Heart University

Biology Newsletter

No abstract provided.

Nebline, January 2012

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: UNL Food Processing Center Provides Valuable Assistance to Food Manufacturers

Farm Views

Urban Agriculture

Food & Fitness

Home & Family Living

Horticulture

Environmental Focus

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

2011 Annual Report Special Pullout Section

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Aspen, Important Pests Of Ornamental Spen, Fred A. Baker, Diane G. Alston, Claudia Nischwitz

All Current Publications

Aspens are one of the more popular forest trees in the Intermountain West. They add a brilliant yellow glow to the collage of fall colors. In an attempt to enjoy these beautiful trees around the home environment, many well-intentioned homeowners purchase or otherwise acquire aspens and transplant them into their landscapes. Unfortunately, aspens are not adapted to the environmental conditions of the valleys, and many problems develop.

Effects Of Methoprene On The Survivorship Of Adult Aedes Mosquitoes: A Strategy Or Inactivating Released Mosquitoes, Peter J. Brabant Iii

Theses and Dissertations--Entomology

Methoprene is a Juvenile Hormone (JH) analogue commonly used for the control of mosquito larvae. When applied to a mosquito breeding site, methoprene enters the haemolymph, where it mimics the function of JH and interferes with normal metamorphosis, resulting in larval mortality. Methoprene is commonly used for the control of larvae and has not been used as an adulticide, due to an absence of acute effects. This study evaluated possible chronic effects caused by the exposure of adult Aedes mosquitoes to methoprene. Methoprene was applied, in both technical grade and the commercially available Altosid®, topically to adults through droplet application …

Invertebrate Abundances And Diversity Of A Six Year Old Organic Apple Orchard In Northwest Arkansas, Cory Johnson, Brina Smith, Mary C. Savin

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Ground cover mulch applications in perennial systems can have multiple benefits, one of which may be to enhance the size and diversity of the ground surface faunal community. To determine if ground cover and organic fertilizer applications altered invertebrate communities, litters in an experimental 0.4-ha organic apple orchard in Fayetteville, Ark. were sampled during a four week period beginning in February 2012. The orchard was planted in 2006 in a replicated 4 × 3 factorial design with organic ground cover and fertilizer treatments applied annually each April. Invertebrates were extracted using Berlese funnels and hand sorting techniques. Ground covers (wood …