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Articles 1 - 11 of 11
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.
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.
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: 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: 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.
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.
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.
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.
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.