Entomology Commons^™

Beneficial True Bugs: Damsel Bugs, Ricardo Ramirez, Ron Patterson

All Current Publications

Predatory insects can provide natural pest control by eating unwanted pests. This beneficial service is known as biological control. Predatory insects are one factor that maintains pest populations at non-damaging levels. By conserving and encouraging predatory insect populations, plants can be protected from pest attack and excessive damage.

Genetic Variability Of The Stable Fly, Stomoxys Calcitrans (L.) (Diptera: Muscidae) Assessed On A Global Scale Using Amplified Fragment Length Polymorphism, Kathleen M. Kneeland

Department of Entomology: Dissertations, Theses, and Student Research

The stable fly, Stomoxys calcitrans, is a cosmopolitan pest of livestock and humans. It is a major pest in livestock facilities, where exist excellent breeding sites such as spilled feed mixed with manure. The pestiferous nature and painful bite cause stress to cattle and other animals. Cattle perform avoidance behaviors such as bunching together, standing in water, tail swishing, ear flicking and leg stamping. The stress and avoidance behaviors result in reductions in weight gain or milk production, with an estimated annual economic loss of > $1billion. Therefore, the development of more efficient control methods would benefit the global economy, …

Nebline, July 2011

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Urban Agriculture is a Growing Trend

Farm Views

Horticulture

Food & Fitness

Home & Family Living

Environmental Focus

Urban Agriculture

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

Frequency Of Extended Diapause In Nebraska Populations Of Diabrotica Barberi Smith And Lawrence, Ryan W. Geisert

Department of Entomology: Dissertations, Theses, and Student Research

This study was conducted to measure the frequency of extended diapause in populations of the northern corn rootworm, Diabrotica barberi Smith and Lawrence from eastern Nebraska. Adult D. barberi collections were made during late summer 2008 and 2009 from eight sites each year (seven sites were consistent over years). Eggs were obtained from 12-20 females per site and were held on moist soil under appropriate temperature profiles to facilitate egg survival, diapause development, and diapause termination within and among years. Percentage egg hatch was recorded after the first and second year for the 2008 collection and after the first year …

General Concepts Of Biological Control, Diane G. Alston

All Current Publications

“Balance of Nature.” Virtually all pest populations are affected by natural enemies to some extent. In many cases, natural enemies are the primary regulating force of the pest populations. Natural controls include effects of natural enemies (predators, parasites, pathogens), other biotic (living) factors such as food availability and competition, and abiotic (non-living) factors such as weather and soil

Important Components Of A Successful Pest Management Program, Diane G. Alston

All Current Publications

Before deciding to take any pest control action, be sure you have correctly identified the pest (insect, mite, disease, weed, vertebrate, etc.). Proper pest identification is essential for determining if control is necessary and for selection of the best suited control options.

Hexapod Herald - Vol. 23, No. 4, June 2011

Hexapod Herald and Other Entomology Department Newsletters

Welcome

Congratulations

Publications

Grants

Meet and Off-Campus Student

Travel

Student News

Condolences

Nebline, June 2011

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Lower Platte South Natural Resources District Trails in Lancaster County Offer Recreation & Education

Farm Views

Horticulture

Food & Fitness

Home & Family Living

Environmental Focus

Urban Agriculture

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

La Producción De La Calabaza De Verano Dentro Del Túnel Alto, Dan Drost

All Current Publications

Se puede cultivar con éxito la calabaza de verano en el túnel alto y puede ser un cultivo vegetativo valioso que diversifica las operaciones agrícolas de tamaño pequeño y de tiempo parcial. El cultivo de la calabaza de verano en el túnel alto hace posible la producción del cultivo unas 4 a 6 semanas antes de y 6 semanas después de las calabazas cultivadas al aire libre. Al añadir su producción a la de otras verduras en el túnel alto, la calabaza de verano aumentará las oportunidades del marketing, mejorará el flujo de fondos y complementará otros cultivos del túnel …

Induced Resistance Studied In Maize With The Fall Armyworm, Spodoptera Frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) And The Chemical Inducer Actigard, Stephen D. Danielson

Department of Entomology: Faculty Publications

Induced resistance has been defined as the "qualitative or quantitative enhancement of a plant's defense mechanisms against pests in response to extrinsic physical or chemical stimuli." (Kogan and Paxton, 1983). Physical stimuli can include infection by a pathogenic organism (Jorgensen et al, 1996; Morris et al, 1998) and feeding by insects (Felton and Eichenseer, 1999). Chemical stimuli include such organic compounds as salicylic acid (Hammerschmidt and Smith-Becker, 1999), jasmonic acid (Staswick and Lehman, 1999), and the commercially available Actigard® 50WG (Tally et al., 1999) (Syngenta Crop Protection, P.O. Box 18300, Greensboro, NC 27419). Actigard® 50WG is registered in the U.S. …

Antlions Of Hispaniola (Neuroptera: Myrmeleontidae), Robert B. Miller, Lionel A. Stange

Insecta Mundi

Twelve extant species of antlions are known from Hispaniola including four new species (Eremoleon petrophila, Eremoleon phasma, Purenleon nunezi, Purenleon woodruffi) and one new genus (Peruveleon). Five New World species are transferred into Peruveleon resulting in new combinations: Peruveleon bruneri (Alayo), Peruveleon camposi (Banks), Peruveleon dolichogaster (Navás), Peruveleon dorsalis (Banks), Peruveleon indiges (Walker). Vella fallax haitiensis Smith is considered a new synonym of Vella eggerti Esben-Petersen. Descriptions and records for the species are provided as well as keys to the adults and larvae. The larvae of eleven species were found and reared.  

Resumen. Se documentan …

A New Species Of Parochodaeus Nikolajev From The Southwestern United States (Coleoptera: Scarabaeoidea: Ochodaeidae, M. J. Paulsen

Insecta Mundi

A new species of Parochodaeus Nikolajev (Scarabaeoidea: Ochodaeidae) with extremely small adults is described from west Texas, P. pixius Paulsen. The species is compared with the sympatric P. biarmatus (LeConte), to which it is most similar in size.

Los Cocoideos (Hemiptera: Sternorrhyncha: Coccoidea) Presentes En La Cordillera De Guaniguanico, Pinar Del Río, Cuba, Y La Relación Con Sus Hospedantes, Nereida Mestre Novoa, Avas Hamon, Greg Evans, Takumasa Kondo, Pedro Herrera Oliver, Arturo Hernández Marrero, Ana Abraham Alonso

Insecta Mundi

El objetivo de este trabajo fue determinar las especies de cocoideos (Hemiptera: Sternorrhyncha: Coccoidea) presentes en Sierra del Rosario y Sierra de los Órganos, Cordillera de Guaniguanico, provincia de Pinar del Río; así como, obtener la relación de sus plantas hospedantes. Se revisaron las Colecciones Zoológicas del Instituto de Ecología y Sistemática (CZACC), Cuba, las publicaciones cubanas sobre cocoideos y ScaleNet, que es una base de datos de los cocoideos del mundo. Se realizó una representación cartográfica de las localidades de recolección sobre un mapa a escala de 1:250000, utilizando el programa MapInfo Professional Versión 4.5. Se hallaron 53 especies …

Additions To The Staphylinidae (Coleoptera) Of The Cayman Islands, J. H. Frank, J. Klimaszewski, D. S. Chandler

Insecta Mundi

In 1947, 20 species of Staphylinidae were reported from the Cayman Islands as a result of an Oxford University expedition there in 1938 which made extensive use of a light trap. The list is here expanded to 62 spe­cies based on collections by R. R. Askew, G. E. Ball, E. A. Dilbert, B. K. Dozier, E. J. Gerberg, P. J. Fitzgerald, M. C. Thomas, and R. H. Turnbow since 1970, all of whom also used light traps except for a collection or two by flight intercept trap.

Fitness Of Diabrotica Barberi, Diabrotica Longicornis, And Their Hybrids (Coleoptera: Chrysomelidae), Laura A. Campbell, Lance J. Meinke

Department of Entomology: Faculty Publications

Diabrotica barberi Smith & Lawrence, the northern corn rootworm, and Diabrotica longicornis (Say) (Coleoptera: Chrysomelidae), are currently recognized as closely related chrysomelid species. Hybridization has been proposed to occur between them, although the viability of hybrids has never been tested. The objective of this study was to assess life-history parameters of D. barberi,D. longicornis, and their hybrids under laboratory conditions to examine the potential for field hybridization. D. barberi and D. longicornis were collected in allopatry and were used to create lab colonies. Parental species were crossed to obtain F1 hybrids, F2 hybrids, and backcrosses to either parental species. …

Population Dynamics Of Stored-Product Insects At A Rice Mill In Northeast Arkansas, Amanda Lea White

Student Theses and Dissertations

The flight activity, seasonal and spatial distributions, and effects of fumigations on the lesser grain borer [Rhyzopertha dominica (F.)], warehouse beetle [Trogoderma variabile (Ballion)], cigarette beetle [Lasioderma serricorne (F.)], and Indianmeal moth [Plodia interpunctella (Hûbner)] were examined at a rice mill in Northeast Arkansas from June 2008 to October 2010. Stored-product insect activity was monitored using pheromone-baited glue traps (N = 99) on the exterior walls or fences around the perimeter and each major building of interest on the property. The warehouse beetle was the most abundant species which comprised 72.3% of all stored-product insects captured. The warehouse beetle showed …

Species Diversity And Seasonal Abundance Of Scarabaeoidea At Four Locations In South Carolina, Kevin Hinson

All Theses

ABSTRACT
Using light, flight-intercept, and pitfall traps, 74, 327 specimens of Scarabaeoidea were captured at four golf courses in South Carolina during 2009-2010. Aphodiinae were identified only to the subfamily level and totaled 57,502 specimens. 16,825 specimens in 47 genera and 104 species in the families Ceratocanthidae, Geotrupidae, Hybosoridae, Lucanidae, Passalidae, Scarabaeidae (excluding Aphodiinae), and Trogidae were identified based on morphological characteristics. Similar to other southeastern studies focusing on phytophagous scarabs, the most abundant species consisted of Dyscinetus morator (Fabricius), Euetheola humilis (Burmeister), Cyclocephala lurida Bland, and Hybosorus illigeri Reiche. The most speciose genus captured was Phyllophaga Harris, totaling 22 …

Heartworm In Canines: Trends In Rhode Island Shelter Populations, Kelsey L. Mckenna

Senior Honors Projects

Heartworm in Canines

Kelsey McKenna

Faculty Sponsor: Darlene Jones, DVM, Animal Science

Each year thousands of dogs in the United States become infected with heartworm, which is caused by Dirofilaria immitis. D. immitis is a parasite that is transmitted to dogs via a bite by an infected mosquito. Nine of the seventy competent mosquito species reside in Rhode Island. The true incidence of D. immitis is unknown. Current incidence maps are derived from data generated at veterinary clinics and do not include shelter dogs. The objective of this study is twofold: to determine the prevalence of D. immitis in …

Nebline, May 2011

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Nature, Gardening & Science Come Together in the Butterfly Garden

Farm Views

Horticulture

Food & Fitness

Home & Family Living

Environmental Focus

Urban Agriculture

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

Investigating Mechanisms Of Co-Occurrence Between Two Similar Specis Of Predaceous Diving Beetles (Coleoptera: Dytiscidae) In Temporary Aquatic Habitats, Kristopher Alexander Pitcher

Master's Theses

Predaceous diving beetles (Coleoptera: Dytiscidae) are a model group of organisms for testing coexistence and exclusion mechanisms because numerous species of the family interact in isolated, aquatic habitats, and are ubiquitous throughout landscapes. Two morphologically similar species, laccophilus fasciatus rufus and Laccophilus proximus, co-occur in numerous habitats in South Mississippi, but are hypothesized to have strong interspecific interactions. I investigated several possible mechanisms that may promote such coexistence, including segregation in habitat domain, differences in behavior, and differences in dispersal that may allow co-occurrence between these two species of beetle. Habitat domain and behaviors such as activity and prey consumption …