Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
-
- USU Extension (20)
- Utah State University Extension (19)
- Utah Pests (18)
- Insects (4)
- Apples (2)
-
- Pears (2)
- Utah State University (2)
- Utah pests (2)
- Alfalfa weevil (1)
- Apricots (1)
- Beehives (1)
- Beetle (1)
- Cankerworms (1)
- Cherries (1)
- Cherry (1)
- Chrysomelidae family (1)
- Codling Moth (1)
- Codling Moth Mating Disruption (1)
- Community-wide Grasshopper Control (1)
- Degree Days (1)
- Entomology (1)
- Extension (1)
- Fact (1)
- Fly (1)
- Fruit (1)
- Fruit Pests: Apple (1)
- Fruit Pests: Cherry (1)
- Fruit Pests: Peach and Nectarine: Peaches (1)
- Fruit Pests: Pear (1)
- Fruit Pests: Plum (1)
- Publication Type
Articles 1 - 28 of 28
Full-Text Articles in Entomology
Three-Lined Potato Beetle, Nick Volesky
Three-Lined Potato Beetle, Nick Volesky
All Current Publications
The three-lined potato beetle (Lema daturaphila) is part of the Chrysomelidae family of beetles. It originates from North and Central America but has since been reported causing economic damage to crops worldwide, such as the cape gooseberry in South Africa and potato in Australia. Though uncommon, the three-lined potato beetle has previously been documented in Utah. In August 2020, it was closely observed causing economic damage in tomatillo production on a commercial vegetable farm in rural Box Elder County, Utah. This fact sheet reviews three-lined potato beetle identification, life cycle, and look-alikes, damage, and management.
Wireworms, Ryan Davis, Jay B. Karren, Alan H. Roe
Wireworms, Ryan Davis, Jay B. Karren, Alan H. Roe
All Current Publications
Wireworms are the larvae (immatures) of click beetles. Adults are elongate, slender, hardshelled beetles that take their name from their habit of flipping into the air (sometimes with an audible clicking sound) when they are placed on their backs. This fact sheet reviews the management of wireworms.
Alfalfa Weevil In Utah, Kaitlin Rim, Joseph Clarine, Steven Price, Ricardo Ramirez
Alfalfa Weevil In Utah, Kaitlin Rim, Joseph Clarine, Steven Price, Ricardo Ramirez
All Current Publications
The alfalfa weevil is a major pest throughout Utah. It is a beetle with one generation per year. Eggs hatch in the spring, and the grub-like immature weevils (larvae) feed by chewing on the alfalfa foliage. In high numbers, alfalfa weevils can cause severe damage to Utah alfalfa. In any given year, however, the weevils are few enough in number in many fields to cause only minor damage. Monitor larval populations in early spring using sweep net or stem count methods. Insecticide resistance can be reduced by spraying only when needed, properly timing sprays, and rotating between modes of action.
Plagas Frutales: Pera, Marion Murray, Diane G. Alston
Plagas Frutales: Pera, Marion Murray, Diane G. Alston
All Current Publications
El fuego bacteriano es causado por una bacteria llamada Erwinia amylovora. Las peras son muy susceptibles al fuego bacteriano. Flores, ramitas terminales, y a veces ramas enteras o árboles mueren. Las condiciones ambientales que favorecen la infección son los días lluviosos calientes durante la floración. La lluvia, el rocío fuerte, y los insectos propagan las bacterias exudadas a las flores, donde las nuevas infecciones se producen
Plagas Frutales: Albaricoque, Marion Murray, Diane G. Alston
Plagas Frutales: Albaricoque, Marion Murray, Diane G. Alston
All Current Publications
El tiro de munición es una enfermedad de hongos común en Utah. Ataca capullos latentes de hojas, brotes de flores, hojas, frutos y ramitas. Las lesiones visibles ocurren primero en las hojas jóvenes como pequeñas manchas redondas y bronceadas que con el tiempo se caen, dejando agujeros redondos.
Plagas Frutales: Cereza, Marion Murray, Diane G. Alston
Plagas Frutales: Cereza, Marion Murray, Diane G. Alston
All Current Publications
El tiro de munición ataca capullos latentes de hojas, brotes de flores, hojas, frutos y ramitas (las infecciones de frutas son menos comunes en la cereza). Las primeras lesiones visibles ocurren en las hojas jóvenes como pequeñas manchas redondas y moradas. Eventualmente estas infecciones se caen, dejando agujeros redondos dando el nombre a esta enfermedad.
Plagas Frutales: Ciruela, Marion Murray, Diane G. Alston
Plagas Frutales: Ciruela, Marion Murray, Diane G. Alston
All Current Publications
Causada por un organismo parecido a un hongo de suelo (Phytophthora), ésta enfermedad se produce en todo el mundo en casi todos los árboles frutales. Phytophthora está presente en la mayoría de los suelos, pero sólo causa infección en circunstancias óptimas, las cuáles son alta humedad del suelo o agua estancada, y un huésped susceptible.
Plagas Frutales: Durazno Y Nectarine, Marion Murray, Diane G. Alston
Plagas Frutales: Durazno Y Nectarine, Marion Murray, Diane G. Alston
All Current Publications
El tiro de munición es una enfermedad de hongos común en Utah. Ataca capullos latentes de hojas, brotes de flores, hojas, frutos y ramitas. Las primeras lesiones visibles ocurren en las hojas jóvenes como pequeñas manchas redondas y bronceadas que con el tiempo se caen, dejando agujeros redondos. Las lesiones circulares se desarollan en la fruta que primero aparecen como manchas rojizas (mostradas a la derecha, arriba), y más tarde como protuberancias ásperas y taponadas.
Polilla De La Manzana, Marion Murray, Diane G. Alston, Michael Reding
Polilla De La Manzana, Marion Murray, Diane G. Alston, Michael Reding
All Current Publications
Polilla de la manzana (Orden Lepidoptera, familia Tortricidae) es la plaga más grave de la manzana y la pera en todo el mundo (Fig. 1). En la mayoría de las regiones productoras de las frutas más comerciales y en los patios de casas en Utah, la fruta debe ser protegida para cosechar un cultivo.
Plagas Frutales: Manzana, Marion Murray, Diane G. Alston
Plagas Frutales: Manzana, Marion Murray, Diane G. Alston
All Current Publications
El fuego bacteriano es causado por una bacteria llamada Erwinia amylovora. Algunas variedades de manzanas son muy susceptibles a esta enfermedad, como Jonathan, Jonagold y Gala. Flores, ramitas terminales, y a veces ramas enteras o árboles mueren.
Splitting The Hive, Sheriden M. Hansen, Andree Walker-Bravo, Jaydee Gunnell
Splitting The Hive, Sheriden M. Hansen, Andree Walker-Bravo, Jaydee Gunnell
All Current Publications
Warming late spring temperatures mark the beginning of swarm season in Utah, especially for beehives that have successfully overwintered. Swarming is when bees naturally divide the existing colony roughly in half, with half the bees remaining in the hive and the other half leaving (with the queen) to look for new accommodations. Colonies that swarm are often left with limited resources, do not produce much honey, and can be rendered too weak to overwinter. Splitting your hives in anticipation of swarming can help reduce the negative effects of swarming, giving bees a chance to build up resources and strength before …
Western Cherry Fruit Fly In Utah Orchards, Diane G. Alston, Marion Murray
Western Cherry Fruit Fly In Utah Orchards, Diane G. Alston, Marion Murray
All Current Publications
This fact sheet describes the western cherry fruit fly, including hosts, life history, timing control, host injury, and management.
Critical Temperatures For Frost Damage On Fruit Trees, Marion Murray
Critical Temperatures For Frost Damage On Fruit Trees, Marion Murray
All Current Publications
No abstract provided.
Using Degree Days To Time Treatments For Insect Pests, Marion Murray
Using Degree Days To Time Treatments For Insect Pests, Marion Murray
All Current Publications
Insecticides that are applied for a perennial insect pest based on a calendar date often result in poor insect control and a waste of resources. Insect activity varies from year to year depending on weather. For example, in Logan, Utah, eggs of the apple pest codling moth began hatching on May 15 in 2005, May 5 in 2006, and April 30 in 2007.
Cankerworms, Marion Murray, Erin W. Hodgson
Cankerworms, Marion Murray, Erin W. Hodgson
All Current Publications
Cankerworms, also known as inchworms, are in the order Lepidoptera and family Geometridae. Geometrid moth adults have slender bodies and relatively large, broad forewings (Figs. 1, 3). Both fall, Alsophila pometaria, and spring, Paleacrita vernata, cankerworms occur in Utah, with the fall cankerworm being most common.
Community-Wide Grasshopper Control, Marion Murray
Community-Wide Grasshopper Control, Marion Murray
All Current Publications
Springtime, while grasshoppers are still nymphs, is the best time for communities or neighborhoods to work together to suppress grasshopper populations. Treating as wide an area as possible is the key to success. When grasshoppers become adults, they can travel great distances and may not remain in one area long enough for an insecticide to be effective.
Soft Scales In Utah, Marion Murray, Erin W. Hodgson
Soft Scales In Utah, Marion Murray, Erin W. Hodgson
All Current Publications
Soft scales are insects in the family Coccidae and are closely related to armored and felt scales and mealybugs. Scales are fluid feeders with piercingsucking mouthparts that remove plant phloem or sap. Most life stages are immobile because they anchor their mouthparts into host tissue. They are difficult to control because of their waxy covering, seasonal abundance, and high fecundity.
Imported Fire Ants, Ryan Davis, Ann Mull, Lori R. Spears
Imported Fire Ants, Ryan Davis, Ann Mull, Lori R. Spears
All Current Publications
Imported fire ants (Order Hymenoptera, Family Formicidae) (IFA) are social insects representing two South American ant species: the red imported fire ant (Solenopsis invicta Buren) and black imported fire ant (Solenopsis richteri Forel), along with their hybrid offspring. IFA are native to South America, where their colonies are kept in check by native competitors, predators, and parasites. However, they have invaded other countries, including Australia, New Zealand, and the U.S., causing agricultural, ecological, economical, nuisance, and public health problems, which are described in more detail in this fact sheet. Management is also addressed.
Stone-Stacking As A Looming Threat To Rock-Dwelling Biodiversity, Ricardo Rocha, Paulo A. V. Borges, Pedro Cardoso, Mirza Dikari Kusrini, José Luis Martín-Esquivel, Dília Menezes, Mário Mota-Ferreira, Sara F. Nunes, Inês Órfão, Catarina Serra-Gonçalves, Manuela Sim-Sim, Pedro Sepúlveda, Dinarte Teixeira, Anna Traveset
Stone-Stacking As A Looming Threat To Rock-Dwelling Biodiversity, Ricardo Rocha, Paulo A. V. Borges, Pedro Cardoso, Mirza Dikari Kusrini, José Luis Martín-Esquivel, Dília Menezes, Mário Mota-Ferreira, Sara F. Nunes, Inês Órfão, Catarina Serra-Gonçalves, Manuela Sim-Sim, Pedro Sepúlveda, Dinarte Teixeira, Anna Traveset
Human–Wildlife Interactions
This letter to the editor describes the surge of “photo-friendly” stacks of stones as an emerging tourism-associated threat to rock-dwelling biodiversity.
High Tunnel Pest Management - Thrips, Nick Volesky, Marion Murray
High Tunnel Pest Management - Thrips, Nick Volesky, Marion Murray
All Current Publications
This fact sheet describes thrips, their hosts, life cycle, crop injury, monitoring, and management in high tunnels.
The Backyard Orchardist – Fruit Pests: Pear, Marion Murray, Diane G. Alston
The Backyard Orchardist – Fruit Pests: Pear, Marion Murray, Diane G. Alston
All Current Publications
Fire blight is caused by a bacterium called Erwinia amylovora. Pears are very susceptible to fire blight. Blossoms, terminal twigs, and sometimes entire limbs or trees are killed. Environmental conditions favoring infection are warm, rainy days during bloom.
The Backyard Orchardist – Fruit Pests: Peach And Nectarine, Marion Murray, Diane G. Alston
The Backyard Orchardist – Fruit Pests: Peach And Nectarine, Marion Murray, Diane G. Alston
All Current Publications
Shothole is a common fungal disease in Utah. It attacks dormant leaf buds, blossom buds, leaves, fruit, and twigs. The first visible lesions occur on young leaves as small, round, tan spots that eventually fall out, leaving round holes.
The Backyard Orchardist –Fruit Pests: Apricot, Marion Murray, Diane G. Alston
The Backyard Orchardist –Fruit Pests: Apricot, Marion Murray, Diane G. Alston
All Current Publications
This fact sheet describes diseases and insect pests of apricots in order of importance. Shothole is a common fungal disease in Utah. It attacks dormant leaf buds, blossom buds, leaves, fruit, and twigs. Other diseases discussed include gummosis, and perennial canker. Insect pests include greater peachtree (crown) borer, peach twig borer, spider mites, earwigs, European fruit lecanium scale, and European paper wasp, yellow jackets.
The Backyard Orchardist – Fruit Pests: Cherry, Marion Murray, Diane G. Alston
The Backyard Orchardist – Fruit Pests: Cherry, Marion Murray, Diane G. Alston
All Current Publications
This fact sheet describes diseases and insect pests of cherry in order of importance. Shothole attacks dormant leaf buds, blossom buds, leaves, fruit, and twigs (fruit infections are less common on cherry. Other diseases described are crown rot and root rot, gummosis, perennial canker, and powdery mildew, Insects include western cherry fruit fly, spider mites, black cherry aphids, flathead borers, pear sawfly, and speckled green fruitworm.
The Backyard Orchardist – Fruit Pests: Plum, Marion Murray, Diane G. Alston
The Backyard Orchardist – Fruit Pests: Plum, Marion Murray, Diane G. Alston
All Current Publications
Caused by a soil-borne, fungus-like organism (Phytophthora), crown and root rot occurs worldwide on almost all fruit trees. This pathogen is present in most soils, but only causes infection under optimal circumstances— high soil moisture or standing water, and susceptible host tissue. Once trees are infected, there is no cure.
Codling Moth In Utah Orchards, Marion Murray, Diane G. Alston
Codling Moth In Utah Orchards, Marion Murray, Diane G. Alston
All Current Publications
Codling moth (Order Lepidoptera, Family Tortricidae) is the most serious pest of apple and pear worldwide. In most commercial fruit producing regions and home yards in Utah, fruit must be protected to harvest a crop. Insecticides are the main control tactic. There are new insecticides available, many of which are less toxic to humans and beneficial insects and mites than earlier insecticides. For commercial orchards with more than 10 acres of contiguous apple and pear plantings, pheromone-based mating disruption can greatly reduce codling moth populations to allow reduced insecticide use.
Codling Moth Mating Disruption, Marion Murray, Diane G. Alston
Codling Moth Mating Disruption, Marion Murray, Diane G. Alston
All Current Publications
Mating disruption became commercially available in the early 1990s, and was adopted by many Utah growers about a decade later. Use of this pest management technology can be daunting due to high up-front costs and monitoring requirements; however, after two to three seasons of use, the cost of mating disruption is the same or even less than conventional pest management.
The Backyard Orchardist – Fruit Pests: Apple, Marion Murray, Diane G. Alston
The Backyard Orchardist – Fruit Pests: Apple, Marion Murray, Diane G. Alston
All Current Publications
Fire blight is caused by a bacteria called Erwinia amylovora. Some varieties of apples are very susceptible to this disease, such as Jonathan, Jonagold, and Gala. Blossoms, terminal twigs, and sometimes entire limbs or trees are killed.