Entomology Commons^™

Fipronil Metabolism, Oxidative Sulfone Formation And Toxicity Among Organophosphate- And Carbamate-Resistant And Susceptible Western Corn Rootworm Populations , Michael E. Scharf, Blair D. Siegfried, Lance J. Meinke, Laurence D. Chandler

Department of Entomology: Faculty Publications

Fipronil toxicity and metabolism were studied in two insecticide-resistant, and one susceptible western corn rootworm (Diabrotica virgifera virgifera, LeConte) populations. Toxicity was evaluated by exposure to surface residues and by topical application. Surface residue bioassays indicated no differences in fipronil susceptibility among the three populations. Topical bioassays were used to study the relative toxicity of fipronil, fipronil. the mono-oxygenase inhibitor piperonyl butoxide, and fipronil's oxidative sulfone metabolite in two populations (one resistant with elevated mono-oxygenase activity). Fipronil and fipronil-sulfone exhibited similar toxicity and application of piperonyl butoxide prior to fipronil resulted in marginal effects on toxicity. Metabolism of …

The International Lepidoptera Survey Newsletter, August 2000, International Lepidoptera Survey, Ron Gatrelle

International Lepidoptera Survey Newsletter

Contents

Brephidium isophthalma insularus

Lepidopterists’ Society Annual Meeting

Phenosyncronic subspeciation

Announcement: Be watching for The International Lepidoptera Survey interactive web site

A Day of Collecting in Burke County Georgia by Ron Gatrelle (pages 3-5)

Nebline, August 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Handling Food Safely at Home
Controlling Undesirable Perennial Grasses in the Lawn
Purple Loosestrife Noxious Weed
Storing Extra Seeds
Your Hummingbird Feeders Should Be Up and Running
Tips for Non-toxic Cricket and Spider Control
West Nile Virus and Rabbit Calcivirus Disease Alerts
New Website Help for Wildlife Damage Problems
Be Wary of Nitrate, Prussic Acid Poisoning This Summer
Deadline Approaches to Terminate Farm Leases
Fuel Price Adds $10 Per Acre to Irrigation Cost
Protect Hearing on the Farm
The Financial Plan
Marketing Strategies
Avoid Foliar Diseases on Tomatoes
Blight Affects Junipers, Windbreaks
Drinking Water Questions and Answers
200 Youth Explore …

Hexapod Herald - Vol. 12, No. 3, August 2000

Hexapod Herald and Other Entomology Department Newsletters

Calendar of events

Grants

Welcome

Faculty news

Graduate student news

Publications

Travel

From the office

Baseline Susceptibility Of The Corn Earworm (Lepidoptera: Noctuidae) To The Cry1ab Toxin From Bacillus Thuringiensis, Blair D. Siegfried, Terrence A. Spencer, Jessica Nearman

Department of Entomology: Faculty Publications

Susceptibility to Cry1Ab toxin from Bacillus thuringiensis (Bt) was determined for 12 field populations of neonate corn earworm, Helicoverpa zea (Boddie), from the United States. Earworm larvae were exposed to artificial diet treated with increasing Bt concentrations, and mortality and growth inhibition were evaluated after 7 d. The range of variation in Bt susceptibility indicated by growth inhibition was very similar to that indicated by mortality. Although interpopulation variation in susceptibility to both proteins was observed, the magnitude of the differences was small (less than or equal to fivefold). These results suggest that the observed susceptibility differences reflect natural variation …

Direct Determination Of The Kinetics Of Oxygen Diffusion To The Photocytes Of A Bioluminescent Elaterid Larva, Measurement Of Gas- And Aqueous-Phase Diffusional Barriers And Modelling Of Oxygen Supply, G. S. Timmins, E. J. Bechara, H. M. Swartz

Dartmouth Scholarship

We describe the development and use of a direct kinetic technique to determine the time taken for oxygen to diffuse from the external environment into the light-producing cells (photocytes) in the prothorax of bioluminescent larvae of Pyrearinus termitilluminans. This was achieved by measuring the time course of the pseudoflash induced through sequential anoxia followed by normoxia. We have also determined the separate times taken for this oxygen diffusion in gaseous and tissue (predominantly aqueous) phases by using helium and nitrogen as the carrier gas. Of the total time taken for diffusion, that in the gas phase required 613+/-136 ms (mean …

A New Species Of Angulopis (Lycaenidae, Eumaeini) From Relict Coastal Forest In East-Central Argentina, Gustavo Canals, Kurt Johnson

The Taxonomic Report of the International Lepidoptera Survey

Angulopis puntalaraensis is described from a single female specimen collected between 1950 and 1955 in the National Reserve Punta Lara, Buenos Aires Province, Argentina. This site is a relict of coastal gallery forest. No other specimens are known.

Description Of A New Subspecies Of Poanes Aaroni (Hesperioidae: Hesperiinae) From The West Central Gulf Coast Of The Southern United States, Ronald R. Gatrelle

The Taxonomic Report of the International Lepidoptera Survey

Poanes aaroni bordeloni is described from Jefferson County, Texas, United States. This taxon is part of a lepidopteran community endemic to the west central area of the United States Gulf Coast between Mobile Bay, Alabama and Galveston Bay, Texas. As such, bordeloni is defined taxonomically by its evolutionary development as much as by its facies. Bordeloni is the largest aaroni subspecies. Bordeloni males are marked much like those of P. a. howardi both dorsally and ventrally. Bordeloni females usually have the fulvous spotting on the dorsal forewings reduced as in P. a. minimus females while …

Effects Of Fertilizer And Herbicide Application On Nantucket Pine Tip Moth Infestation (Lep., Tortricidae), David L. Kulhavy

Faculty Publications

A study of fertilizer and herbicide e}ects on Nantucket pine tip moth (NPTM), Rhyacionia frustrana (Comstock) infestations was conducted in loblolly pine (Pinus taeda L) plantations in Nacogdoches Co. Texas from 0877 to 0878. Both fertilizer and herbicide applications had effects on NPTM infestation level, pupal weight and host tree oleoresin production. Nitrogen fertilization increased infestation levels, whereas, phosphorus applications tends to decrease infestation rate. Herbicide treatment had a negative effect on NPTM infestations possibly because of decreased moisture stress and increased tree vigour. This is in contrast to general observations of increased NPTM infestations associated with reducing competing …

Flea News 60 (July 2000), Robert E. Lewis

Flea News

Announcement: Printed copies of Flea News discontinuing

Obituary: Franciscus Gerardus Albertus Maria Smit (June 7, 1920-January 28, 2000)

Book review: Sifonapteros do Brasil, Pedro Marcois Linardi and Lindolpho Rocha Guimaraes. Sao Paulo, Museu de Zoologia USP/FAPESP, 2000.

Flea species

Literature

Miscellanea: As of January 2000 the name of the Journal of the Helminthological Society of Washington was changed to Comparative Parasitology.

New Larval Descriptions For Two Species Of Euphoria Burmeister (Coleoptera: Scarabaeidae: Cetoniinae: Cetoniini: Euphoriina) With A Key To The Known Larvae And A Review Of The Larval Biology For Species In The Genus. , Estefanía Micó, Andrew Smith, Miguel Angel Morón

University of Nebraska State Museum: Entomology Papers

The larvae of Euphoria devulsa Horn and Euphoria lurida (F.) (Coleoptera: Scarabaeidae: Cetoniinae: Cetoniini: Euphoriina) are described for the first time.The larval biology of these species and others in the genus is reviewed. A key to the 7 known species of Euphoria larvae is provided.

Nebline, July 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

4-H & County Fair = Family Time
All America Rose Selections, All Time Classics
Vegetable Gardening in The Fall
Lawn and Garden Water Check List
Watch for Squash Vine Borer
EPA Curbs Dursban Uses
Money Saving Techniques to Help Save the Environment
Be Good to Your Worms
Misplaced Wildlife Become Problems in Urban Areas
Utilizing Drought-Damaged Corn
Noxious Weed Number 7
The Operations Plan
Summer Care Yields Fall Harvest
Farmers’ Markets on the Rise (Part 2)
Fertilizing Roses
WIC Works Wonders!!
Healthy Eating: Homemade Whole Wheat Croutons
Make It A S*U*P*E*R Salad Summer!
Focus on Food
Family & Community Education …

Time-Course Haemolymph Juvenile Hormone Titres In Solitarious And Gregarious Adults Of Schistocerca Gregaria, And Their Relation To Pheromone Emission, Ca Volumetric Changes And Oocyte Growth, Amer I. Tawfik, Karl Treiblmayr, Ahmed Hassanali, E. O. Osir

All Peer-Reviewed Publications

The haemolymph JH III titres in solitarious and gregarious adult desert locusts, Schistocerca gregaria, were examined in relation to corpus allatum (CA) volumes, aggregation-maturation pheromone production in males and oocyte growth in females. The JH titres of gregarious females were generally higher than those of solitarious females at all ages studied. The titre patterns, however, were similar: relatively high on day 10, dropping to low levels between days 20 and 25, before rising again by day 25. In the solitarious males, the JH titre was very low on day 10 after fledging, but increased gradually and reached a maximal amount …

Changing Fitness Consequences Of Hsp70 Copy Number In Transgenic Drosophila Larvae Undergoing Natural Thermal Stress, S. (Stephen) P. Roberts, M. E. Feder

Biological Sciences Faculty Research & Creative Works

1. Transgenic Manipulation of the Gene Copy Number of Hsp70, Which Encodes the Major Inducible Heat-Shock Protein of Drosophila Melanogaster (Hsp70), Affects Both Hsp70 Levels and Inducible Thermotolerance in the Laboratory; Here Parallel Effects in Transgenic Drosophila Larvae Undergoing Natural or Simulated Natural Thermal Stress Are Demonstrated. 2. Necrotic Fruit Was Infested with Larvae of Either of Two Transgenic Strains, One Transformed with 12 Extra Copies of the Hsp70 Gene (Extra-Copy Strain) and a Sister Strain Possessing Only the Wild-Type Number (10) of Hsp70 Genes (Excision Strain), and Then Allowed to Heat to Variable Extents. 3. as the Intensity of …

Hexapod Herald - Vol. 12, No. 2, June 2000

Hexapod Herald and Other Entomology Department Newsletters

Calendar of events

Grants

Congratulations

Welcome

Faculty news

Graduate student news

Publications

Travel

From the office

Nebline, June 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Biosolids: A Valuable Resource Benefits Lancaster County Farmers and Taxpayers
Propagation of Shrubs from Softwood Cuttings
Blue Flowers for the Garden
Think About Apple Maggot Control Now
To DEET or not To DEET
Extension Head Lice Videotape Wins National Award!
I’ve Got GOPHERS in My Garden!
Using Summer Annual Forage Grasses to Stretch Pastures in a Dry Year
SNAP Aiming for Late Summer Start Date
Hog Prices
The Marketing Plan
Control Weeds and Woody Plants
Farmers’ Markets on the Rise in Lincoln
Pine Wilt Disease Deadly to Pines
Soyfoods - A Serving a Day......
Healthy Eating
Focus on Food
What …

Development Of Diagnostic Concentrations For Monitoring Bacillus Thuringiensis Resistance In European Corn Borer (Lepidoptera: Crambidae), Paula C.R.G. Marcon, Blair D. Siegfried, Terrence A. Spencer, W. D. Hutchinson

Department of Entomology: Faculty Publications

Two candidate diagnostic concentrations of the Cry1Ab and Cry1Ac toxins from Bacillus thuringiensis corresponding to the LC₉₉ and EC₉₉ (effective concentration that causes 99% growth inhibition) for European corn borer, Ostrinia nubilalis (Hubner), were determined based on previously obtained baseline data. Validation experiments using field-collected European corn borer populations from across North America showed that for Cry1Ab, a concentration corresponding to the upper limit of the 95% confidence interval of the LC₉₉, produced mortality .99% for all populations tested. However, for Cry1Ac, adjustments and further validation are probably necessary. Development of B. thuringiensis resistance monitoring programs …

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.

Clover Mites, Dr. Jay B. Karren, Alan H. Roe

All Current Publications

Clover mites, Bryobia praetiosa Koch, are not insects but are more closely related to chiggers, ticks, and spiders. They belong to the spider mite family Tetranychidae. These mites are found throughout the world on trees, shrubs, flowers, grasses, and agricultural crops.

United States Patent: Buffalograss Plant Named ‘Ne91-118’, Terrance P. Riordan, Frederick Baxendale, Roch E. Gaussoin, Jennifer M. Johnson-Cicalese, Paul G. Johnson, Edward J. Kinbacher

Department of Entomology: Faculty Publications

A vegetatively reproduced buffalograss cultivar named 'NE91-118' is distinguished from other commercially produced buffalograss varieties by its excellent turfgrass color, cold tolerance, high density, low growth habit, and rate of establishment. 'NE91-118' is also distinguished by molecular markers and nuclear DNA content. 'NE91-118' is suitable for use in low to medium maintenance situations in arid and semi-arid climates of United States and Canada.

Taxonomic Review Of Platycoelia Lutescens Blanchard (Scarabaeidae: Rutelinae: Anoplognathini) And A Description Of The Use Of This Species As Food By The People Of The Ecuadorian Highlands. , Andrew B. T. Smith, Aura Paucar C.

University of Nebraska State Museum: Entomology Papers

Platycoelia lutescens Blanchard (Scarabaeidae: Rutelinae: Anoplognathini), a species that occurs in the Andes Mountains of South America, is redescribed. Platycoelia albescens (Bates) and P. baronis (Ohaus) are considered new synonyms of P. lutescens. A lectotype is designated for P. albescens. The use of this species as a food source by the people of the Ecuadorian highlands is discussed.

Nebline, May 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Pesticide Myths Can Harm Water Quality
2000 Rose Winners for The New Millennium
Night Blooming Flowers Offer Evening Enjoyment
Goldenrod, Our Nebraska State Flower
Prevent Fleas Now!
Warm Weather is Here!
Water for the birds
It’s Tick Season
Diagnostic Help Available
Designing a Bt Refuge for Your Field
Corn Flea Beetle Survival Expected to be Above Average
Weather and Climate Information on the Web
U.S. Drought Monitor
Product or Service
Tuesday Farmers’ Market in Lincoln
Spring Iris Shows
Protective Covenants
May — Time to Control Leafy Spurge
Lincoln Housing Authority Seniors Experiment With New Foods
Healthy Eating: Quick Mini-Quiche
An …

Invertebrate Carcasses As A Resource For Competing Aedes Albopictus And Aedes Aegypti (Diptera : Culicidae), M P. Daugherty, B W. Alto, Steven A. Juliano

Faculty Publications – Biological Sciences

However, little is known of the role of these carcasses in other containers, which also receive leaf fall and stemflow inputs. This experiment investigated effects of accumulated invertebrate carcasses as a resource for two competing mosquitoes, Aedes albopictus (Skuse) and Aedes aegypti (L.) whether either species differentially benefited from accumulated carcasses, and if such a benefit affected interspecific competition. First, we measured accumulation of invertebrate carcasses in standard containers at a field site. We then used a replacement series with five different species ratios at the same total density: and varied the input of invertebrate carcasses [dead Drosophila melanogaster (Meigen) …

"An Evolutionary No Man’S Land" And "Reply From L. G. Harshman And A. A. Hoffmann", Margarida Matos, André Levy, Henrique Teotónio, Michael R. Rose, Lawrence G. Harshman, Ary A. Hoffmann

Lawrence G. Harshman Publications

The gap between evolutionary studies in laboratory versus natural populations is a persistent problem.

Nebline, April 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Earth Wellness Festival: A Splashing Success!
Rhubarb in the Garden
Thank You Master Gardeners!
Plant a Tree
Great Plants: 2000 Plants of the Year
Prevent Termites With Landscaping, Home Maintenance
Let’s Make a Difference – Earth Day 2000
A Plague of Rabbits
What’s Buggin’ You?
Effect of Soaring Fuel Prices on Cost of Field Operations
Managing Fertilizer Use in Dry Soils
SNAP Producer Alliance Takes Next Steps
The Management Team
Road Maintenance
Rodent Proofing Your Home
Knowledge of Animal Laws Important-State Leash Law
Good Nutrition, Better Health
You Can’t Serve From an Empty Plate. So, F-E-A-S-T Frequently
Focus on Food …

Hexapod Herald - Vol. 12, No. 1, March 2000

Hexapod Herald and Other Entomology Department Newsletters

Calendar of events

Grants

Congratulations

Welcome

Faculty news

Graduate student news

Publications

Travel

From the office

Entomology 905 seminar

Farewell to Ackland Jones from David Keith

A Taxonomic Teview Of The Subtribe Pericalina (Coleoptera: Carabidae: Lebiini) In The Western Hemisphere, With Descriptions Of New Species And Notes About Classification And Zoogeography, Danny Shpeley, George E. Ball

Insecta Mundi

A taxonomic review of the lebiine subtribe Pericalina in the Western Hemisphere, this paper includes a treatment of the genus-groups, a key to the genera, keys to subgenera, species groups, and species of each polybasic genus, descriptions of new species and new subgenera, new locality records for previously described species, re-rankings, and new synonymy. In total, 111 species and subspecies are treated, 26 of which are described as new.

A review of the taxonomically useful mandibular structure, based on stereo-electron (SEM) photographs, requires changes in previously published names of various structures. A review of adhesive vestiture on the front tarsi …

Two New Species Of Botocudo From Trinidad, Tobago, And Grenada (Hemiptera: Rhyparochromidae: Antillocorini), Julieta Brambila

Insecta Mundi

Abstract: Botocudo trinidadensis is described and illustrated from the islands of Trinidad and Grenada and Botocudu fasciatus described and illustrated from Trinidad and Tobago.

Resumen: Se describen e ilustran Botocudo trinidadensis, de las islas de Trinidad y Granada, y Botocudu fasciatus, de Trinidad y Tobago.