Open Access. Powered by Scholars. Published by Universities.®
- Discipline
Articles 91 - 120 of 161
Full-Text Articles in Entomology
Fall Webworm, Ryan S. Davis, Vincent P. Jones
Fall Webworm, Ryan S. Davis, Vincent P. Jones
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.).
Pear Sawfly, Vincent P. Jones, Ryan S. Davis
Pear Sawfly, Vincent P. Jones, Ryan S. Davis
All Current Publications
The pear sawfly, which is actually a wasp, is a common pest on pear, cherry, and hawthorn in Utah. The slug-like appearance of the larval stage has prompted this insect to also be referred to as the pear or cherry slug in various parts of the country.
Beneficial True Bugs: Damsel Bugs, Ricardo Ramirez, Ron Patterson
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.
European Earwig (Forficula Auricularia), Diane G. Alston, Andrew Tebeau
European Earwig (Forficula Auricularia), Diane G. Alston, Andrew Tebeau
All Current Publications
The European earwig (Order Dermaptera, which means “skin wings” to describe their leathery wings) (Fig. 1) is native to Europe, western Asia, and parts of Africa. The common name “earwig” comes from a myth that the insect would climb into the ears of humans and chew into the brain, but this is false. The European earwig was first introduced into Utah in the early 1900s. Establishment and population growth have been remarkably successful in northern Utah.
General Concepts Of Biological Control, Diane G. Alston
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
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.
Brown Marmorated Stink Bug, Erin Petrizzo, Diane G. Alston
Brown Marmorated Stink Bug, Erin Petrizzo, Diane G. Alston
All Current Publications
Brown marmorated stink bug (Order Hemiptera: Family Pentatomidae) (BMSB) was accidentally introduced into the eastern U.S. from Asia in the late 1990s. In 2001 it was officially identified in Pennsylvania, and has since spread along the eastern seaboard and westward into the Great Lakes region.
Campylomma Bug Sampling Form, Usu Extension
Campylomma Bug Sampling Form, Usu Extension
All Current Publications
Campylomma Bug Sampling Instructions.
Africanized Honey Bee, Erin W. Hodgson, Cory A. Stanley, Alan H. Roe, Danielle Downey
Africanized Honey Bee, Erin W. Hodgson, Cory A. Stanley, Alan H. Roe, Danielle Downey
All Current Publications
African honey bees (Apis mellifera scutellata) are native to sub-Saharan Africa and were introduced in the Americas to improve honey production in the tropics. These African honey bees were accidentally released and began to interbreed with European honey bees (Apis mellifera ligustica), the most common subspecies used for pollination and honey production in the United States (Fig. 1). As a result, the hybrid offspring are called “Africanized” because of their shared characteristics. Africanized honey bees are about the same size, shape and color as European honey bees (Fig. 2), and a genetic analysis must be used to distinguish one from …
Cat-Facing Insects, Diane Alston, Michael Reding, Marion Murray
Cat-Facing Insects, Diane Alston, Michael Reding, Marion Murray
All Current Publications
There are a number of insects with the piercing-sucking feeding habit that can cause deformity and catfacing type injury to pome and stone fruits, including lygus bug, stink bug, and boxelder bug. Cat-facing injury is caused by puncture feeding in flower buds and fruit. The result is unsightly dimpling, deformity, and scarring of fruit. The name “cat facing” comes from the distorted fruit shape that resembles the puckered cheeks of a cat. In addition to the insects discussed in this section, some aphids and the campylomma bug can inflict similar injury.
Chinch Bugs, Kelly Kopp, Ryan S. Davis, Ricardo A. Ramirez
Chinch Bugs, Kelly Kopp, Ryan S. Davis, Ricardo A. Ramirez
All Current Publications
Chinch bugs are “true bugs”. In Utah, the common chinch bug [Blissus leucopterus leucopterus (Say)], and western chinch bug (Blissus occiduus) may feed on turfgrass, especially under conditions of severe heat and drought. Coupled with under-irrigation, direct sunlight, and thick thatch, chinch bug numbers can soar from mid-summer to early fall.
Japanese Beetle, Erin Hodgson, Diane Alston, Cory A. Stanley
Japanese Beetle, Erin Hodgson, Diane Alston, Cory A. Stanley
All Current Publications
The Japanese beetle, Popillia japonica Newman, can be a highly destructive pest to ornamentals, trees, shrubs, turfgrass, and vegetables. First discovered in the eastern United States in 1916, the Japanese beetle has threatened agriculture and horticulture by slowly moving south and west. In 2006, a small population of adult Japanese beetles was detected in Orem, Utah.
Boxelder Bug, Erin W. Hodgson, Alan H. Roe
Boxelder Bug, Erin W. Hodgson, Alan H. Roe
All Current Publications
Boxelder bugs are a common nuisance insect to many homeowners. Although boxelder bugs are active throughout the summer, many people don’t notice them until they start “sunning” themselves on structures, particularly the southern-facing walls. As temperatures start to decrease in the late summer and fall, large numbers of adults will move from plants and congregate on heated buildings.
Codling Moth (Cydia Pomonella) Sampling Form, Usu Extension
Codling Moth (Cydia Pomonella) Sampling Form, Usu Extension
All Current Publications
Place traps in orchards when 100 degree days have accumulated or by first bloom. Check traps at least every other day (preferably daily) until biofix, and weekly until mid-September
Control Of Iron Chlorosis, Rich Koenig, Michael R. Kuhns
Control Of Iron Chlorosis, Rich Koenig, Michael R. Kuhns
All Current Publications
Iron deficiency (iron chlorosis) affects many desirable landscape and crop plants grown in Utah. The primary symptom of iron deficiency is interveinal chlorosis, the development of a bright yellow leaf with a network of dark green veins. In severe cases, the entire leaf turns yellow or white and the outer edges may scorch and turn brown as the plant cells die.
Peach Twig Borer (Anarsia Lineatella) Sampling Form, Usu Extension
Peach Twig Borer (Anarsia Lineatella) Sampling Form, Usu Extension
All Current Publications
Place traps in orchards after approximately 330 degree days have accumulated. Check traps at least every other day (preferably daily) until biofix, and weekly throughout the season afterward.
Pear Psylla (Cacopsylla Pyricola) Sampling Form, Usu Extension
Pear Psylla (Cacopsylla Pyricola) Sampling Form, Usu Extension
All Current Publications
Begin sampling for adults in the dormant phase when daytime temperatures reach at least 45 F, beginning around early March, and continue weekly through April.
Spider And Predatory Mites Sampling Form, Usu Extension
Spider And Predatory Mites Sampling Form, Usu Extension
All Current Publications
This sampling method uses the presence-absence method. Rather than counting the number of mites, scouts simply need to determine whether mites occur or do not occur on the collected leaves.
Western Tentiform Leafminer Sampling Form – Apple And Cherry, Usu Extension
Western Tentiform Leafminer Sampling Form – Apple And Cherry, Usu Extension
All Current Publications
Western Tentiform Leafminer Sampling Form
White Apple Leafhopper Sampling Form, Usu Extension
White Apple Leafhopper Sampling Form, Usu Extension
All Current Publications
White Apple Leafhopper Sampling Form
Lilac-Ash Borer, Ryan S. Davis, Taun Beddes, Jay B. Karren
Lilac-Ash Borer, Ryan S. Davis, Taun Beddes, Jay B. Karren
All Current Publications
The lilac-ash borer (Podosesia syringae), belongs to a group of insects known as the clear-winged moths. The wings of most sesiid moths in have at least partially transparent wings (devoid of the colored scales that coat most moth and butterfly wings).
Cockroaches, Ryan S. Davis
Cockroaches, Ryan S. Davis
All Current Publications
Cockroaches are one of the most difficult structural pests to eradicate because of their ability to hide, rapid reproduction, and resistance to and avoidance of many commonly used insecticide sprays and baits. Using an integrated pest management (IPM) program can greatly increase the possibility of successful control. There are 4 cockroach species that commonly infest structures in Utah, each with a specific biology; identify invading cockroaches before you develop an IPM plan. Proper identification of any pest will allow you to understand its biology, and use it against itself!
Bed Bugs: For Homeowners, Ryan S. Davis, Erin W. Hodgson, Jay B. Karren, Alan H. Roe
Bed Bugs: For Homeowners, Ryan S. Davis, Erin W. Hodgson, Jay B. Karren, Alan H. Roe
All Current Publications
Bed bugs are notorious around the world for their impact on humans and have been recognized as important pests for hundreds of years. Infestations were common before World War II, but heavy insecticide use eliminated most bed bugs in North America for almost 30 years.
Bed Bugs: For Pest Control Operators, Ryan S. Davis
Bed Bugs: For Pest Control Operators, Ryan S. Davis
All Current Publications
Over the past decade reports of bed bug infestations (Cimicidae: Cimex lectularius) throughout North America and abroad have been on the rise. Accordingly, bed bug submissions to the Utah Plant Pest Diagnostic Lab have also been increasing.
Dothistroma Needle Blight, Erin Frank, Kent Evans
Dothistroma Needle Blight, Erin Frank, Kent Evans
All Current Publications
A landscape design should meet the needs of the people who will use and maintain the area while incorporating the site’s existing environmental conditions into the design. Water is a limiting resource in Utah, so designing the landscape to efficiently use water is important. Conserving water in the landscape can be accomplished by selecting low water use plants, designing and scheduling irrigation systems efficiently, grouping plants according to their water requirements, and using hardscaping materials (patios, stone paths, decks, etc.) appropriately to reduce the area requiring irrigation.
Iris Yellow Spot Virus In Onions, Kent Evans, Erin Frank
Iris Yellow Spot Virus In Onions, Kent Evans, Erin Frank
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.
Take-All Patch In Turf, Erin Frank, Kent Evans
Take-All Patch In Turf, Erin Frank, Kent Evans
All Current Publications
Subterranean termites are social insects with a caste system, and belong to the order Isoptera and family Termititae. These termites are closely related to drywood (Kalotermitidae) and dampwood (Termopsidae) termites.
Yellow Sac Spiders, Ryan S. Davis
Yellow Sac Spiders, Ryan S. Davis
All Current Publications
Most Utahn’s are familiar with the hobo spider (Tegenaria agrestis) and its potentially harmful bite. However, most Utahn’s don’t know that there is another spider commonly entering homes that may have a similar, but less toxic bite than the hobo—the yellow sac spider Chiracanthium inclusum).
Crickets, Erin W. Hodgson, Jessie Trina
Crickets, Erin W. Hodgson, Jessie Trina
All Current Publications
Crickets are closely related to grasshoppers and katydids, all belonging in the order Orthoptera. The family of “true crickets” is called Gryllidae, which includes more than 900 different species worldwide. In Utah, we have several species of field crickets and snowy tree crickets located throughout the state. True crickets are often confused with grasshoppers and katydids because they have similar body shapes and large hind legs for jumping.
Carpenter Bees, Erin W. Hodgson, Jessie Trina
Carpenter Bees, Erin W. Hodgson, Jessie Trina
All Current Publications
Carpenter bees are large, hairy bees in the genus Xylocopa and order Hymenoptera. There are over 500 species of carpenter bees distributed worldwide. In Utah, we have two common species, X. californica and X. tabaniformis. Carpenter bees in Utah are most likely found in Washington, Kane and Garfield counties, and are rarely found in Salt Lake and Utah counties.