Entomology Commons^™

Genetic Similarity Among Pheromone And Voltinism Races Of Ostrinia Nubilalis (Hubner) (Lepidoptera: Crambidae), P. C. R. G. Marcon, David B. Taylor, C. E. Mason, R. L. Hellmich, Blair Siegfried

Department of Entomology: Faculty Publications

The genetic variability of seven European corn borer populations, Ostrinia nubilalis, from North America and Europe was assessed by polymerase chain reaction- restriction fragment length polymorphism (PCRRFLP) analysis and DNA sequencing. The nuclear ribosomal internal transcribed spacer 1 (ITS-1) region (≈ 500 base pair [bp]) and four mitochondrial (mtDNA) regions (1550 bp total) were examined. The smartweed borer, Ostrinia obumbratalis, and south-Western corn borer, Diatraea grandiosella, were used for comparisons. Of 106 restriction sites identified (80 in mtDNA and 26 in ITS-1), none differentiated geographical populations, pheromone races, or voltine ecotypes of the European corn borer. The …

Nebline, August 2003

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Lessons Learned Through Garbology
Pesticide Disposal Collection Aug. 18
Deadline Approaches to Terminate Verbal Farm Leases
Nebraska Fence Viewer Statutes Cover Fence Issues
Fertilizing Crop Land with Biosolids
West Nile Virus is of Concern to Horse Owners During the Summer
Growing Conifers from Seed
Water Trees According to Soil Type
Recognizing Tree Hazards
Healthy Eating: Enjoy Nebraska Foods
Freezing Peppers and Tomatoes
Teaching Proper Hand Washing to School Children
FREE class: Healthy Cooking for 1 or 2
Web Resources of the Month
Lines from Lynn
Household Hints
September Council Meeting
Achievement Meeting
Leader Training
Re-Organizational Packets
Five Steps to a …

Synopsis Of The New World Genera Of Anomalini (Coleoptera: Scarabaeidae: Rutelinae) And Description Of A New Genus From Costa Rica And Nicaragua, Mary Liz Jameson, Aura Paucar-Cabrera, Angel Solis

University of Nebraska State Museum: Entomology Papers

We describe a new genus of anomaline scarab, Anomalorhina (Coleoptera: Scarabaeidae: Rutelinae: Anomalini) from Costa Rica and Nicaragua. Anomala turrialbana Ohaus is transferred into this genus, and a new species, Anomalorhina osaensis, is described. Anomalorhina is characterized by the clypeal apex that is abruptly reflexed, the base of the frons that has prominent tubercles in males, the pronotum with a depressed fovea in males, and the pronotum with the apical bead posteriorly produced and V-shaped at the middle in females. We summarize the biological importance of the 16 genera of New World anomaline scarabs, including comments on agricultural pests, …

A Subspecific Assessment Of The Genus Hesperia (Hesperiinae) In Eastern North America (Part I: The South): New Subspecies Of Hesperia Metea, Hesperia Sassacus And Hesperia Meskei, Ronald R. Gatrelle, Marc C. Minno, Alex Grkovish

The Taxonomic Report of the International Lepidoptera Survey

Hesperia meskei pinocayo Gatrelle and Minno is described from Big Pine Key, Monroe County, Florida, United States. This subspecies is thought to be nearly extinct. Its mainland status is uncertain. It is characterized by bi-colored ventral hindwings with more prominent ventral hindwing spots. Hesperia metea intermedia Gatrelle is described from Pickens County, South Carolina, United States. Its range is from northwestern South Carolina, United States west through Mississippi, United States and probably into Missouri, United States. Males have the least dorsal fulvous of the metea subspecies; ventrally they are well marked. Females are similar to subspecies licinus. Hesperia sassacus …

Nebline, July 2003

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

2003 Lancaster County Fair
Discover 4-H at the Fair!
Fragrance in the Garden
Vegetable Gardening In The Fall
Garden Guide
Powdery Mildew on Ornamentals
Horticulture Information Center
Landfill Rates Haven.t Changed Since 1996
Adult Mosquito Control
Landfill 2003 Fees
About Opossums
Visit 4-H Web Cam
Selling CRP Land? What You Should Know
Plant Alfalfa in August
Nitrate Sampling Strategies
Don.t Forget About Prussic Acid
Farmers Market Pricing Strategies
Fertilizing Trees
In Dry Weather, Watering More Critical For Some Plants
Handling Food Safely on the Road
Healthy Eating: Enjoy Nebraska Foods
Bowl Them Over with Pears!
Moms Learn About Good Nutrition …

Bumble Boosters: Doing Science As A Community Of Learners, Douglas A. Golick, Marion D. Ellis

Department of Entomology: Faculty Publications

Bumble bees are an excellent organism for engaging high school students in research. They are a recognizable insect and an important pollinator, and much remains to be discovered about the biology of many species. Bumble Boosters was a teaching and research project funded by the Nebraska Lottery’s Educational Innovation Fund. The project began in June 1999 and ended in June 2002.

Fisheries Research Contract Report No. 2 - Towards An Assessment Of Natural And Human Use Impacts On The Marine Environment Of The Abrolhos Islands (Phase 1 : Data Consolidation And Scoping - Final Report For Frdc Project 2000/1 66), C. F. Chubb, K. Nardi

Fisheries Research Contract Reports

This project has drawn together existing research data relating to natural and human impacts on the Abrolhos Islands marine habitats. It has surveyed current uses of these habitats and placed anthropogenic impacts within the context of natural perturbations. Through public forum presentation and debate, this work has allowed real issues, not perceptions, to surface and be addressed properly. This was achieved by defining a strategic programme of research through a scientific workshop process involving all community stakeholders. A two volume Fisheries Research Report (WA) summarizes current knowledge and details the workshop proceedings and strategic research plan.

Bumble Boosters: Doing Science As A Community Of Learners, Douglas A. Golick, Marion D. Ellis

Department of Entomology: Faculty Publications

Bumble bees are an excellent organism for engaging high school students in research. They are a recognizable insect and an important pollinator, and much remains to be discovered about the biology of many species. Bumble Boosters was a teaching and research project funded by the Nebraska Lottery’s Educational Innovation Fund. The project began in June 1999 and ended in June 2002. Bumble Boosters created a community of students networking through the Internet to conduct authentic research on Nebraska bumble bee species. Throughout the state, 40 high schools participated in the project, which supported teaching and research objectives.

Teaching objectives were …

Aphytophagy In The Miletinae (Lycaenidae): Phylogeny, Ecology, And Conservation, John Mathew

Biological Sciences Theses & Dissertations

Less than 1% of all Lepidoptera are aphytophagous; of these, a considerable proportion is found in the family Lycaenidae. The aphytophagous Lycaenidae are believed to have arisen from a mutualistic template involving ant attendance. With this association firmly in place, it is a relatively simple shift to exploitation, either of the ants themselves, through active carnivory on the brood/trophallactic feeding from adults, or by carnivory on ant-tended homopterans, with little to no interference by the ants. Among lycaenids, aphytophagy has arisen several times; most spectacularly in the subfamily Miletinae, where all of the approximately 150 species are presumed or known …

Larval Distribution And Survival Of Second Generation European Corn Borer, Ostrinia Nubilalis (H.Ubner) (Lepidoptera: Crambidae) On Event 176 Bt Corn, Amelia C. Zoerb, Terrence A. Spencer, Richard L. Hellmich, Robert J. Wright, Blair D. Siegfried

Department of Entomology: Faculty Publications

European corn borer Ostrinia nubilalis Hubner (Lepidoptera: Crambidae) larvae that have completed development on Event 176 Bt corn hybids have either survived exposure to sublethal doses of Cry1Ab Bt toxin or exploited plant tissues that do not express the toxin. To evaluate the impact of such exposure on larval establishment and survival, Event 176 plants with and without tassels and a non-Bt isoline were infested with O. nubilalis egg masses during anthesis. On the non-Bt plants, larval establishment occurred primarily on pollen collecting in the leaf axils, silks and ears. In contrast, almost no larvae were recovered from leaf axils …

Hexapod Herald - Vol. 15, No. 3, June 2003

Hexapod Herald and Other Entomology Department Newsletters

Congratulations

Welcome

Graduate student news

From the office

Grants

Publications

Travel

Condolences

Nebline, June 2003

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Norris Students Get a Grade of Job “Well” Done in Innovative Project
Watch for Squash Vine Borer
Water Use in the Landscape
Low Water Use Flowers for Your Landscape
Garden Guide
Horticulture Information Center
What’s New with Pressure Treated Lumber
West Nile Virus Concerns Horse Owners
Dead Birds Being Accepted for Testing
Do all Mosquitoes Carry West Nile Virus?
Information for Acreage and Small Farm Owners
Time to Harvest Bromegrass Hay
Ammoniate Wheat Straw for Extra Feed
2003 Pesticide Container Recycling Dates
Tanks vs. Ponds and Creeks for Livestock Water
Preparing the Lawn for a Potential Drought
Fertilizing Azaleas
Know …

Effect Of Soil Temperature And Moisture On Survival And Infectivity Of Metarhizium Anisopliae To Four Tephritid Fruit Fly Puparia, S. Ekesi, N. K. Maniania, S. A. Lux

All Peer-Reviewed Publications

The infectivity of 4 isolates of Metarhizium anisopliae to puparia of Ceratitis capitata treated as late third-instar larvae in unsterilized soil was investigated in the laboratory under controlled temperature and moisture. At 20-30°C, mortality in puparia was highest at water potential of -0.1 and -0.01 mega Pascal (MPa) and lowest at water potential of -0.0055 and -0.0035 MPa in all the isolates. In wetter soil however, isolates ICIPE 20 and 60 caused significantly higher mortality than ICIPE 18 and 69. The survival of conidia in drier soil (-0.1 MPa) was not adversely affected at all temperatures. However, in wet soil …

Bumble Boosters: Students Doing Real Science, Douglas A. Golick, Diana M. Schlesselman, Marion D. Ellis, David W. Brooks

Department of Entomology: Faculty Publications

Bumble Boosters was a lottery grant funded cooperative project between the University of Nebraska- Lincoln, Department of Entomology, the Lincoln Public Schools, Science Focus Program, and the Lincoln Folsom Children’s Zoo. The primary education goal of the project was to create a community of learners to conduct authentic research on bumble bees in Nebraska. Participants were actively engaged in collecting bumble bees and placing nesting domiciles. Internet technology was employed to facilitate networking between project participants. Systematic evaluation was conducted during and after the project.

Resistance Status Of House Flies (Diptera: Muscidae) From Southeastern Nebraska Beef Cattle Feedlots To Selected Insecticides, Paula C.R.G. Marcon, Gustave D. Thomas, Blair D. Siegfried, John B. Campbell, Steven R. Skoda

Department of Entomology: Faculty Publications

The status of resistance to three insecticides (permethrin, stirofos, and methoxychlor), relative to a laboratory-susceptible colony, was evaluated in Þeld populations of house flies, Musca domestica L., collected from two beef cattle feedlots in southeastern Nebraska. Topical application and residual exposure to treated glass surfaces were suitable methods for determining the resistance status of house flies to permethrin, stirofos, or methoxychlor. However, in most cases, residual exposure was more sensitive in resistance detection (i.e., higher resistance ratios). The field populations tested were moderately resistant to permethrin (RR = 4.9-fold and RR = 7.3-fold, for topical application and residual exposure, respectively) …

Toxicity Of Insecticide-Bait Mixtures To Insecticide Resistant And Susceptible Western Corn Rootworms (Coleoptera: Chrysomelidae), Srinivas Parimi, Lance J. Meinke, Timothy M. Nowatzki, Laurence D. Chandler, B. Wade French, Blair D. Siegfried

Department of Entomology: Faculty Publications

Organophosphate resistant and susceptible populations of the western corn rootworm, Diabrotica virgifera virgifera LeConte. were subjected to adult feeding bioassays with different combinations of insecticide and a cucurbitacin bait. Five technical grade insecticides (methyl-parathion, carbaryl, fipronil, bifenthrin and indoxacarb) were used in combination with Invite EC^TM as the feeding stimulant. Differences in susceptibility to the insecticide/bait combinations were observed among the resistant and susceptible populations for methyl-parathion and carbaryl. Susceptibility to fipronil, bifenthrin and indoxacarb was similar among the resistant and susceptible populations. Assays in which response to the insecticide/bait combination was compared with the bait alone indicated that …

Use Of Transgenic Strains Of Insects In The Screwworm Program, Margaret Allen, Alfred Handler, Dennis Berkebile, Steven Skoda, Philip Scholl

Department of Entomology: Faculty Publications

Transposable element (TE)-mediated transformation of nondrosophilid insects is becoming a viable and robust gene introduction method for many insects of economic and medical importance (Handler 2002). Transformation may be used for gene identification and characterization, and for creating strains with genes encoding lethality or sterility. The New World Screwworm (NWS), Cochliomyia hominivorax (Coquerel), was once a devastating, repulsive, and costly pest of livestock and other warm-blooded creatures (including humans) in the United States and Mexico. It has been successfully eradicated from the entire North American continent. The eradication program was the first implementation of the sterile insect technique (SIT). The …

A New Species Of Phalangogonia Burmeister (Coleoptera: Scarabaeidae: Rutelinae: Anoplognathini) From Costa Rica, Andrew Smith

University of Nebraska State Museum: Entomology Papers

Phalangogonia hawksi sp. n. from the Osa Peninsula of Costa Rica is described. The genus Phalangogonia Burmeister now includes nine species. An updated key to the species in this genus is provided to accommodate the new species.

Effect Of Heat Shock, Pretreatment And Hsp70 Copy Number On Wing Development In Drosophila Melanogaster, Karen D. Williams, Amanda B. Helin, Joseph Posluszny, Stephen P. Roberts, Martin E. Feder

Biological Sciences Faculty Research & Creative Works

Naturally Occurring Heat Shock (HS) during Pupation Induces Abnormal Wing Development in Drosophila; We Examined Factors Affecting the Severity of This Induction. the Proportion of HS-Surviving Adults with Abnormal Wings Varied with HS Duration and Intensity, and with the Pupal Age or Stage at HS Administration. Pretreatment (PT), Mild Hyperthermia Delivered Before HS, Usually Protected Development Against HS. Gradual Heating Resembling Natural Thermal Regimes Also Protected Wing Development Against Thermal Disruption. Because of the Roles of the Wings in Flight and Courtship and in View of Natural Thermal Regimes that Drosophila Experience, Both HS-Induction of Wing Abnormalities and its Abatement …

Checklist Of The World Anoplognathini, Andrew B. T. Smith

University of Nebraska State Museum: Entomology Papers

My research involves the tribe Anoplognathini (Coleoptera: Scarabaeidae: Rutelinae), a group endemic to the Neotropical and Australian realms. A generic level phylogenetic analysis of the world Anoplognathini (Rutelinae) is in progress. A preliminary analysis has been conducted using morphological and molecular characters. The analysis suggests that the Australian and Neotropical groups are paraphyletic. Adjustments will have to be made in the classification of this tribe to reflect the natural relationships.

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.

Nebline, May 2003

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Grasshoppers Thrive in Drought Conditions
Grasshopper Identification
Reducing Energy Bills for Irrigation
2003 Pesticide Container Recycling Dates
Latest U.S. Drought Monitor Map
Buffalograss - The Other Green Grass
Careful Spraying is a Key to Preventing Foliage Damage
Squirrels Cause Spring Frustration
Weather & Climate Information on the Web
Weed Control Essential for New Seedlings
How to Fill Up, Not Out! (Part 2)
Healthy Eating: Enjoy Nebraska Foods
Fitness For You!
Web Resources of the Month
Lines from Lynn
Household Hints: Storing Garments
  Family Community Education (FCE) Council Meeting
Sizzling Summer Sampler
When Times are Tough: In the Aftermath of War …

Prospects For Biological Control Of The Western Flower Thrips, Frankliniella Occidentalis, With The Entomopathogenic Fungus, Metarhizium Anisopliae, On Chrysanthemum, N. K. Maniania, S. Ekesi, B. Löhr, F. Mwangi

All Peer-Reviewed Publications

The potential of Metarhizium anisopliae (Metsch.) Sorok. for the control of Frankliniella occidentalis (Pergande) on chrysanthemum cuttings was evaluated in greenhouse experiments. The fungus significantly reduced both the adult and larval populations of F. occidentalis, although the level of control of larval populations was much lower than for adults. Combined application of M. anisopliae and Methomyl (Lannate®), however, resulted in a significant reduction of both the larval and adult stages. The use of both control agents might be helpful in reducing the selection pressure for resistance to chemical insecticides, thereby delaying or preventing the build-up of resistant populations in greenhouses.

Chorionic Morphology Of Mayfly (Ephemeroptera) Eggs Of The Lower Rio Grande Valley, Maria D. De Leon

Theses and Dissertations - UTB/UTPA

External egg morphology of ten species of Lower Rio Grande Valley (LRGV) mayflies are compared using scanning electron microscopy (SEM) and a taxonomic key to the eggs is provided. The eggs of five species are described here for the first time. Preserved female adults or subadults were critical-point dried using liquid CO2 . The eggs were removed and placed on metal stubs for sputter coating with gold/palladium. The coated eggs were then observed and photographed by SEM. The morphological features described were the chorionic sculpturing, polar caps, accessory attachment structures, and micropyles. This is the first mayfly egg comparison and …

Genetic Changes Within An Aphid Clone: Homogenization Of Rdna Intergenic Spacers After Insecticide Selection, Kevin A. Shufran, Z. B. Mayo, Teresa Crease

Department of Entomology: Faculty Publications

A single asexual maternal lineage (i.e. clone) of the greenbug aphid, Schizaphis graminum (Rondani) was repeatedly selected with the insecticide disulfoton (O,O-diethyl S-[2-(ethylthio)ethyl] phosphorodioate). A parallel colony of the non-selected clone was also maintained. After approximately 200 generations (4 years) of continuous selection, both the selected and non-selected clones were assayed for changes in intergenic spacer (IGS) length variants of the rRNA cistron. No changes in sets of IGS variants were detected in the non-selected clone. However, the selected clone was found to have lost three variants present in the non-selected clone. This probably occurred by unequal …

Book Review: Aphodiinae (Insecta: Coleoptera: Scarabaeidae) Fauna Of New Zealand (Stebnicka, Z. T. 2001), Andrew B. T. Smith

University of Nebraska State Museum: Entomology Papers

This is an excellent faunal survey of the scarab beetle subfamily Aphodiinae of New Zealand. It is obvious that Stebnicka has thoroughly searched the literature and has critically examined many specimens (1,5001) from all the important collections. The monograph includes keys to species and descriptions of all taxa. It also contains detailed information on the systematics, biology, and biogeography of the group as it pertains to New Zealand. There are 20 species dealt with in this volume. Nine species are native endemics, ten are adventive, and one is an interception record (with no evidence of persistent populations occurring). The volume …

Butterflies Of The North Okanagan, British Columbia, Canada, David L. Threatful

The Taxonomic Report of the International Lepidoptera Survey

An annotated list of 106 species of butterflies known to occur in the north Okanagan area of British Columbia, Canada is presented. Information is provided on flight phenology, elevation and habitat for each species. Field work over the past 100 years shows that this is one of the premiere areas in Canada for butterfly species diversity. More than one third of all known Canadian butterflies have been found in this small area.

Hexapod Herald - Vol. 15, No. 2, April 2003

Hexapod Herald and Other Entomology Department Newsletters

Congratulations

Welcome

Farewell

Faculty news

Graduate student news

From the office

Grants

Museum news

Publications

Travel

Condolences

This and that

Comparison Of Chlorophyll And Carotenoid Concentrations Among Russian Wheat Aphid (Homoptera: Aphididae)-Infested Wheat Isolines, Tiffany Heng-Moss, X. Ni, T. Macedo, John P. Markwell, Frederick P. Baxendale, S. S. Quisenberry, V. Tolmay

Department of Entomology: Faculty Publications

Russian wheat aphid, Diuraphis noxia (Mordvilko), feeding injury on ‘Betta’ wheat isolines with the Dn1 and Dn2 genes was compared by assessing chlorophyll and carotenoid concentrations, and aphid fecundity. The resistant Betta isolines (i.e., Betta-Dn1 and Betta-Dn2) supported similar numbers of aphids, but had significantly fewer than the susceptible Betta wheat, indicating these lines are resistant to aphid feeding. Diuraphis noxia feeding resulted in different responses in total chlorophyll and carotenoid concentrations among the Betta wheat isolines. The infested Betta-Dn2 plants had higher levels of chlorophylls and carotenoids in comparison with uninfested plants. In contrast, infested Betta-Dn1 plants had the …

Nebline, April 2003

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Plant and Pest Diagnostic Services Can Help You!
The Value of the Correct Diagnosis
Planning to Plant a Tree? Read This First!
What Day is Arbor Day?
Garden Guide
Easter Lily Care Take A Field Trip To Audubon Spring Creek Prairie
Termite Control Workshop May 22
Walk for the Birds
Summary of 2002 Nebraska West Nile Virus Surveillance Results
Household Hazardous Waste Collections for 2003
Security Concerns for Pesticides or Fertilizers
Graze Conservatively Following Drought Year
Nebraska Pioneer Farm Awards Deadline May 1
Managing Fertilizer Use in Dry Soils
Latest U.S. Drought Monitor Map
Preparing the Lawn for a Potential …