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2008

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Articles 61 - 90 of 231

Full-Text Articles in Entomology

Dermestid Beetles, Erin W. Hodgson, Katherine Coats, Alan H. Roe Aug 2008

Dermestid Beetles, Erin W. Hodgson, Katherine Coats, Alan H. Roe

All Current Publications

Dermestid beetles are in the family Dermestidae and order Coleoptera. These beetles are sometimes called larder beetles or carpet beetles. Adults range from 1 to 12 mm in length and have variable body coloration. In general, they are hairy, dark-colored, elongated, and have clubbed antennae. The larvae are light brown and can be up to 13 mm long. Many larvae have spines, called setae, on the back of the abdomen that are helpful with identification. Dermestid larvae and adults have chewing mouthparts.

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Squash Bug, Diane Alston, James Barnhill Aug 2008

Squash Bug, Diane Alston, James Barnhill

All Current Publications

Squash bug (Anasa tristis) is a “true bug” with piercingsucking mouthparts (Order Hemiptera) in the leaffooted bug family (Coreidae). It is common throughout the U.S. and found from Canada to Central America. Adults (Fig. 1) emit a foul odor when disturbed and may be called “stink bugs”; however, true stink bugs are in a different true bug family.

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Cold Rearing Improves Cold-Flight Performance In Drosophila Via Changes In Wing Morphology, Melanie R. Frazier, Jon F. Harrison, Scott D. Kirkton, Stephen P. Roberts Jul 2008

Cold Rearing Improves Cold-Flight Performance In Drosophila Via Changes In Wing Morphology, Melanie R. Frazier, Jon F. Harrison, Scott D. Kirkton, Stephen P. Roberts

Biological Sciences Faculty Research & Creative Works

We Use a Factorial Experimental Design to Test Whether Rearing at Colder Temperatures Shifts the Lower Thermal Envelope for Flight of Drosophila Melanogaster Meigen to Colder Temperatures. D. Melanogaster that Developed in Colder Temperatures (15°C) Had a Significant Flight Advantage in Cold Air Compared to Flies that Developed in Warmer Temperatures (28°C). at 14°C, Cold-Reared Flies Failed to Perform a Take-Off Flight ∼47% of the Time Whereas Warm-Reared Flies Failed ∼94% of the Time. at 18°C, Cold- and Warm-Reared Flies Performed Equally Well. We Also Compared Several Traits in Cold- and Warm-Developing Flies to Determine If Cold-Developing Flies Had Better …

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Hexapod Herald - Vol. 20, No. 3, July 2008 Jul 2008

Hexapod Herald - Vol. 20, No. 3, July 2008

Hexapod Herald and Other Entomology Department Newsletters

Contents:
Congratulations
Welcome
Grants
Workshop News
Publications
Meet a Distance Student
Faculty News
Student News
From Gary’s Desk
Condolences
Travel
Blasts from the Pasts

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Nebline, July 2008 Jul 2008

Nebline, July 2008

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Homemade Skillet Meals: Easy, Healthy & Low-Cost
Create Your Own Skillet Meal
Colorful Annual Vines
Watch out for Poison Ivy
Summer Pruning of Apple Trees
Keep the Vegetables Coming with a Fall Garden
Cost of Pumping Water for Domestic and Acreage Needs
Managing Financial Risk During Boom Periods
Plan the Timing of Grass Hay Harvest
Midges: Non-biting Gnats
Midge Control Program at Capitol Beach
Bats In and Around Structures
Bats and Disease
Supermarket Savings: 16 Tips that Can Total Big Bucks
Family & Community Education (FCE) Clubs: Presidents’ Notes—Bonnie’s Bits
FCE News & Events
Household Hints: Swimsuit Care
Strengthening Family …

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Economic Performance Of The 'Push-Pull' Technology For Stemborer And Striga Control In Smallholder Farming Systems In Western Kenya, Zeyaur R. Khan, Charles A.O. Midega, Esther M. Njuguna, David M. Amudavi, Japhether M. Wanyama, John A. Pickett Jul 2008

Economic Performance Of The 'Push-Pull' Technology For Stemborer And Striga Control In Smallholder Farming Systems In Western Kenya, Zeyaur R. Khan, Charles A.O. Midega, Esther M. Njuguna, David M. Amudavi, Japhether M. Wanyama, John A. Pickett

All Peer-Reviewed Publications

The 'push-pull' technology (PPT), developed in Africa, offers effective control of cereal stemborers and Striga weed in maize-based cropping systems. It involves intercropping maize with desmodium, Desmodium uncinatum, with Napier grass, Pennisetum purpureum, planted as border around this intercrop. Desmodium repels the stemborer moths (push) that are subsequently attracted to the Napier grass (pull). Desmodium also suppresses and eliminates Striga. We assessed economic performance of this technology compared to the conventional maize mono- and maize-bean intercropping systems in six districts in western Kenya over 4-7 years. Ten farmers were randomly recruited in each district and each planted three plots representing …

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Beneficial Insects: Lacewings And Antilions, Erin W. Hodgson, Jessie Trina Jul 2008

Beneficial Insects: Lacewings And Antilions, Erin W. Hodgson, Jessie Trina

All Current Publications

Lacewings and antlions are insects in the order Neuroptera. There are over 4,000 different species of lacewings and antlions throughout the world. In general, the adults have soft bodies, long antennae, and prominent eyes.

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Fungus Gnats, Erin W. Hodgson, Brooke A. Lambert Jul 2008

Fungus Gnats, Erin W. Hodgson, Brooke A. Lambert

All Current Publications

Fungus gnats are small, long-legged flies in the families Mycetophilidae and Sciaridae. The dark-winged fungus gnat, Bradysia spp. is one of the most common indoor pests. Adults fly over plants, but consume only liquids and are harmless to plants.

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Pseudoscorpions, Erin W. Hodgson, Alan H. Roe, Brooke Lambert Jul 2008

Pseudoscorpions, Erin W. Hodgson, Alan H. Roe, Brooke Lambert

All Current Publications

Pseudoscorpions, also known as false scorpions or book scorpions, are arachnids in the order Pseudoscorpionida. There are more than 3,300 different species of pseudoscorpions throughout the world, with the most dense populations found in the tropics and subtropics. They can be found throughout Utah.

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A Review Of The Genus Chortophaga (Orthoptera: Acrididae) Among Nebraska Populations: Questioning The Validity Of Chortophaga Australior Rehn And Hebard, Mathew L. Brust, W. Wyatt Hoback, Robert J. Wright Jun 2008

A Review Of The Genus Chortophaga (Orthoptera: Acrididae) Among Nebraska Populations: Questioning The Validity Of Chortophaga Australior Rehn And Hebard, Mathew L. Brust, W. Wyatt Hoback, Robert J. Wright

Department of Entomology: Faculty Publications

Chortophaga australior Rehn and Hebard (Orthoptera: Acrididae) is considered a species distinct from Chortophaga viridifasciata (DeGeer). Collections across Nebraska have shown that the characters used to separate these two species are inconsistent and that the average state of these characters appears to be related to the time of the season during which the adults are collected. Until further study clarifies the status of C. australior, we suggest that its specific status be considered questionable.

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First Record Of Diaphorina Citri Kuwayama (Hemiptera: Psyllidae) From The Sultanate Of Oman, Talal S. Zadjali, Rohani Ibrahim, Ahmed K. Al-Rawahi Jun 2008

First Record Of Diaphorina Citri Kuwayama (Hemiptera: Psyllidae) From The Sultanate Of Oman, Talal S. Zadjali, Rohani Ibrahim, Ahmed K. Al-Rawahi

Insecta Mundi

Mexican acid lime, Citrus aurantifolia (L.) Swingle (Rutaceae), is the most popular citrus species in Oman and is the second most important economic crop. The cultivated area of acid lime in the period of 2001-2004 ranged between 4460-2880 feddans (1 feddan = 1.038 acres = 0.420 hectares), with an annual production of about 8160-5875 metric tonnes (Anonymous 2004).

Previous surveys did not reveal any record of psyllids on citrus in Oman. However, the most important psyllid species attacking citrus, Diaphorina citri Kuwayama (Hemiptera: Psyllidae), was recently observed on C. aurantifolia. It was observed first at Barka (Al-Batinah region) on …

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Gynandromorphs In The Genera Ophiogomphus Selys, 1854 And Ischnura Charpentier, 1840 (Odonata: Gomphidae, Coenagrionidae), K. J. Tennessen Jun 2008

Gynandromorphs In The Genera Ophiogomphus Selys, 1854 And Ischnura Charpentier, 1840 (Odonata: Gomphidae, Coenagrionidae), K. J. Tennessen

Insecta Mundi

A gynandromorph of Ophiogomphus smithi Tennessen and Vogt from Wisconsin and a gynandromorph of Ischnura hastata (Say) from Alabama are described. The specimens appear to be bilateral in that they display mostly left/right separation of male and female characters.

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The First Record Of Merycomyia Whitneyi (Johnson), Tribe Bouvieromyiini (Diptera: Tabanidae), From Texas And From West Of The Mississippi River, James T. Goodwin, Emmanuel D. Williams Jun 2008

The First Record Of Merycomyia Whitneyi (Johnson), Tribe Bouvieromyiini (Diptera: Tabanidae), From Texas And From West Of The Mississippi River, James T. Goodwin, Emmanuel D. Williams

Insecta Mundi

The first collections of Merycomyia whitneyi (Johnson), (Diptera: Tabanidae: Chrysopsinae: Bouvieromyiini) from Texas and from west of the Mississippi River are reported, and the Nearctic species of the Tribe Bouvieromyiini are discussed.

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Description Of The Male Of Plectromerus Michelii Nearns And Branham, 2008 (Coleoptera: Cerambycidae), Eugenio H. Nearns Jun 2008

Description Of The Male Of Plectromerus Michelii Nearns And Branham, 2008 (Coleoptera: Cerambycidae), Eugenio H. Nearns

Insecta Mundi

The previously unknown male of Plectromerus michelii Nearns and Branham is described and illustrated.

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Phylogenetic Revision Of Eryphanis Boisduval, With A Description Of A New Species From Ecuador (Lepidoptera, Nymphalidae), Carla M. Penz Jun 2008

Phylogenetic Revision Of Eryphanis Boisduval, With A Description Of A New Species From Ecuador (Lepidoptera, Nymphalidae), Carla M. Penz

Insecta Mundi

This study provides a species-level phylogeny for the Neotropical brassoline genus Eryphanis Boisduval based on 43 morphological characters. A revised generic definition is given. Three subspecies are elevated to species status and a new species is described; E. bubocula (Butler, 1872), status revised; E. lycomedon (C. Felder and R. Felder, 1862), status revised; E. opimus (Staudinger, 1887), status revised; and E. greeneyi Penz and DeVries, new species. Diagnoses, annotated redescriptions, and illustrations of habitus and genitalia are provided for the nine Eryphanis species.

Includes Corrigenda of 8/22/2008.

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Nebline, June 2008 Jun 2008

Nebline, June 2008

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Local Dairy Entrepreneurs Are Filling Market Niches
Effect of Fuel Price Increase on Production Costs
Calibrating Hand-Held Sprayers
Practice Water Conservation to Lengthen Septic System Life
Don’t Mistake Blossom End Rot for Mold on Tomatoes
Control of Biting Flies
Add “Star” Appeal to Fruit Dishes
Fresh Food, Fun, Friendly People: Farmers’ Markets
$tretch Your Food Dollar by Using Dry Milk
Frozen Fudge Bars Recipe
Presidents’ Notes—Bonnie’s Bits
Household Hints: Go Green—Clean with Vinegar
FCE News & Events
June is Home Safety Month— Tips for creating a safer home
Youth Can Explore Career Options at Big Red Camps
Emerging Pest: Emerald …

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Farmers' Perceptions Of A 'Push-Pull' Technology For Control Of Cereal Stemborers And Striga Weed In Western Kenya, Zeyaur R. Khan, David M. Amudavi, Charles A.O. Midega, Japhether M. Wanyama, John A. Pickett Jun 2008

Farmers' Perceptions Of A 'Push-Pull' Technology For Control Of Cereal Stemborers And Striga Weed In Western Kenya, Zeyaur R. Khan, David M. Amudavi, Charles A.O. Midega, Japhether M. Wanyama, John A. Pickett

All Peer-Reviewed Publications

Striga and cereal stemborers are major constraints to cereal production in sub-Saharan Africa causing serious food security concerns. The International Centre of Insect Physiology and Ecology (ICIPE) and partners have developed a novel integrated management system called the 'push-pull' technology (PPT) in mitigation. This involves inter-cropping maize with a stemborer moth-repellent forage legume, silverleaf desmodium (push), and planting an attractive trap crop, Napier grass (pull), around the intercrop. Additionally, chemicals produced from desmodium roots inhibit Striga. We evaluated farmers' perceptions of the pests, PPT attributes and factors influencing the likelihood of its adoption in 15 districts in western Kenya. A …

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Can Low Release Numbers Lead To Establishment And Spread Of An Exotic Parasitoid: The Case Of The Diamondback Moth Parasitoid, Diadegma Semiclausum (Hellén), In East Africa, G. Gichini, B. Löhr, A. Rossbach, B. Nyambo, R. Gathu Jun 2008

Can Low Release Numbers Lead To Establishment And Spread Of An Exotic Parasitoid: The Case Of The Diamondback Moth Parasitoid, Diadegma Semiclausum (Hellén), In East Africa, G. Gichini, B. Löhr, A. Rossbach, B. Nyambo, R. Gathu

All Peer-Reviewed Publications

From 2001 onwards, Diadegma semiclausum, an exotic parasitoid of the diamondback moth, was introduced and released in Kenya, Tanzania and Uganda. Contrary to common practice where thousands of parasitoids are released, we released very low numbers, 125 females in Kenya, 160 in Uganda and 350 in Tanzania. About 2 years after this single release, the establishment and natural spread of the parasitoids was assessed in all release areas. Two methods were employed: in Kenya, a grid with equidistant points in the four cardinal directions (2-50 km) with the release area in the centre was used and collections were made 27 …

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Genetic And Biological Variations Among Plutella Xylostella Granulovirus Isolates, S. Subramanian, R. J. Rabindra, S. Sithanantham Jun 2008

Genetic And Biological Variations Among Plutella Xylostella Granulovirus Isolates, S. Subramanian, R. J. Rabindra, S. Sithanantham

All Peer-Reviewed Publications

Success of a baculovirus in the field depends on the selection and utilization of effective isolates of viruses with increased pathogenicity and virulence. Isolates of Plutella xylostella granuloviruses collected from Kenya and India were compared for genetic variations by restriction endonuclease enzyme analysis and for biological activity based on their median lethal concentration and time-to-kill early- and late-third instars. The P. xylostella granulovirus isolates in Kenya were more diverse than those in India and were considerably different from the latter, with only 53-61% similarity. The Kenyan and Indian isolates did not differ significantly for their median lethal concentration, but the …

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Centipedes, Erin W. Hodgson, Paul Bingham, Alan H. Roe Jun 2008

Centipedes, Erin W. Hodgson, Paul Bingham, Alan H. Roe

All Current Publications

Centipedes are long, slender arthropods in the class Chilopoda. Centipede means “hundred feet” because they appear to have many legs. Insects, millipedes and arachnids are close relatives. Centipedes should be considered beneficial because they are exclusively predatory. They eat a wide variety of smaller invertebrates, including insects. However, centipedes may be considered a nuisance to homeowners when they are found inside.

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Clothes Moths, Erin W. Hodgson, Jessie L. Trina, Alan H. Roe Jun 2008

Clothes Moths, Erin W. Hodgson, Jessie L. Trina, Alan H. Roe

All Current Publications

Clothes moths belong to a large group of small moths in the family Tineidae. There are two species of clothes moths that are of considerable economic importance. The webbing and the casemaking clothes moths are worldwide in distribution. The larvae of clothes moths can feed on and cause damage to fabrics, furs, feathers, wool, carpets, tapestries, drapes, piano felts, upholstered furniture, animal bristled brushes, hair, fish meal found in fish food, synthetics or fabrics, such as cotton, that have been blended with wool, skins, spices, stored tobacco, old clothing, scrap piles, leather, lint, dust, paper, linen, silk, stuffed animals, blankets, …

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Fire Blight, Kent Evans, Erin Frank, Taun Beddes, Mike Pace Jun 2008

Fire Blight, Kent Evans, Erin Frank, Taun Beddes, Mike Pace

All Current Publications

The fall webworm, Hyphantria cunea, is a common defoliator of ornamental and fruit trees in Utah. Starting around late July, the caterpillars, webbing, and damage become noticeable, particularly in some of the canyons adjacent to populated areas (Little Cottonwood canyon, Logan canyon, Provo canyon, etc.).

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Grasshoppers, Edward W. Evans, Erin Hodgson Jun 2008

Grasshoppers, Edward W. Evans, Erin Hodgson

All Current Publications

Grasshoppers are among the most conspicuous insects in Utah, and are viewed by many as also among the most injurious to our crops and rangelands. In any given year, thousands of acres may be sprayed throughout the state to reduce potential damage.

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Human Parasites, Ryan S. Davis, Erin W. Hodgson Jun 2008

Human Parasites, Ryan S. Davis, Erin W. Hodgson

All Current Publications

Entomologists often get “bug” samples for identification, including those that accidentally infest residences. In the United States, we are fortunate to have very few arthropods (e.g., insects, spiders, mites, ticks, etc.) that actually infest or feed on humans.

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Scorpions, Erin W. Hodgson, Alan H. Roe Jun 2008

Scorpions, Erin W. Hodgson, Alan H. Roe

All Current Publications

Scorpions are eight-legged carnivorous arthropods and belong to the class Arachnida. This class also includes ticks, spiders, and mites. There are approximately 1,300 species of scorpions worldwide and 75 species in the United States, but only 9 are recognized in Utah (Table 1). Scorpions are usually found in semiarid deserts. Most species that occur in the United States have been found in Arizona, parts of Texas, and central Oklahoma.

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Snow Mold On Small Grains, Erin Frank, Kent Evans Jun 2008

Snow Mold On Small Grains, Erin Frank, Kent Evans

All Current Publications

Shothole borers (Fig. 1) are bark beetles that may attack stressed or injured trees. They have a wide host range, including all fruit trees grown in Utah, quince, loquat, serviceberry, wild cherry, chokecherry, mountain ash, hawthorn and elm. In Utah, apple, cherry, pear, and hawthorn are preferred hosts.

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Western Corn Rootworm, Erin Hodgson Jun 2008

Western Corn Rootworm, Erin Hodgson

All Current Publications

Western corn rootworm, Diabrotica virgifera virgifera, is one of the most devastating corn insect pests in the United States. In some years, corn rootworms can cause up to $1 billion in yield loss and control costs. In Utah, western corn rootworm has been detected in at least 13 counties (Fig. 1), but likely can be found throughout the state wherever corn is grown.

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Integrated Management Of Striga Hermonthica, Stemborers, And Declining Soil Fertility In Western Kenya, B. Vanlauwe, F. Kanampiu, G. D. Odhiambo, H. De Groote, L. J. Wadhams, Z. R. Khan May 2008

Integrated Management Of Striga Hermonthica, Stemborers, And Declining Soil Fertility In Western Kenya, B. Vanlauwe, F. Kanampiu, G. D. Odhiambo, H. De Groote, L. J. Wadhams, Z. R. Khan

All Peer-Reviewed Publications

Striga hermonthica (Delile) Benth., stemborers, and declining soil fertility are serious threats to sustainable food production in the Lake Victoria zone of Kenya. To address these constraints, promising integrated crop management technologies were evaluated, using a multi-locational design in four sub-locations in Siaya and Vihiga district (western Kenya) for six cropping seasons. Technologies evaluated consisted of the traditional maize (Zea mays L.) - bean (Phaseolus vulgaris L.) intercrop, maize - Desmodium (Desmodium uncinatum (Jacq.) DC.) push-pull intercrop, Crotalaria (Crotalaria ochroleuca G. Don) - maize rotation, and soybean (Glycine max (L.) Merr) - maize rotation. Within each of these systems, imazapyr-coated …

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Gender-Specific Differences In Spatial Behavior Of The Flesh Fly, Sarcophaga Crassipalpis., Caleb Joseph Paquette May 2008

Gender-Specific Differences In Spatial Behavior Of The Flesh Fly, Sarcophaga Crassipalpis., Caleb Joseph Paquette

Electronic Theses and Dissertations

Territoriality in the flesh fly, Sarcophaga crassipalpis (Diptera: Sarcophagidae) was studied in the laboratory. In rectangular enclosures, male flies exhibited a lower tolerance (occupation of the same physical space) of same-sex conspecifics than did female flies. In circular arenas, male flies showed significantly higher levels of spatial separation among themselves (as determined from nearest neighbor analyses) than did females: males were distributed uniformly whereas females were nearly random. The male spatial behavior occurred during the photophase but not the scotophase of light-dark cycles, suggesting that visual cues are required for maintenance of inter-individual spacing. No significant differences in male spacing …

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Nebline, May 2008 May 2008

Nebline, May 2008

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

The Ants Go Marching...
What’s Good About Ants?
Pond Measurements
Establishing a Commercial Vineyard
Tips For Handling Pesticides Safely
It’s Spring: Watch for Signs of Termites
Everything Homeowners Need to Know About Termite Control
Reduce Your Risk of Rabies Exposure
Rabies Symptoms
Put Your Hummingbird Feeders Out Now
$tretch Your Food Dollar by Buying Fruits and Vegetables in Season
Orange Pork Chops Recipe
Basic Foods for Cupboard, Fridge & Freezer: Create Your Own List!
Presidents’ Notes—Bonnie’s Bits
Household Hints: Many uses for Baking Soda
FCE News & Events
Clean Up of Compact Fluorescent Light Bulbs
It’s About Time (Management)
Strengthening …

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