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Full-Text Articles in Life Sciences

Managing Vegetation Around Fruit Trees, Teryl Roper Nov 2021

Managing Vegetation Around Fruit Trees, Teryl Roper

All Current Publications

Fruit trees thrive along the Wasatch Front and in many other locations in Utah. Backyard fruit trees are very common in Utah, and producers quickly become attuned to insect and disease pests that can swiftly spoil substantial amounts of fruit. They are typically less aware of the detrimental effect of competing vegetation around fruit trees. This fact sheet describes the nature of vegetation competition and proposes management strategies to reduce or eliminate competition.


Lily Leaf Beetle, Ann Mull, Lori R. Spears Nov 2021

Lily Leaf Beetle, Ann Mull, Lori R. Spears

All Current Publications

The lily leaf beetle (LLB) (Coleoptera: Chrysomelidae) is an important pest from Eurasia that threatens native and cultivated true lilies (Lilium spp.) and fritillaries (Fritillaria spp.). It is also known as the red lily leaf beetle or scarlet lily beetle. LLB was first reported in North America in Montréal, Canada, in 1945 and in the U.S. in 1992 in Massachusetts, likely arriving via European shipments of lily bulbs. LLB has been detected in nine of the 10 Canadian provinces and 14 U.S. states, including the New England states, Pennsylvania, Wisconsin, Minnesota, and Washington (EDDMapS, 2021). Based on LLB’s native distribution …


Evaluation Of Cold-Hardy Grapes On The Wasatch Front, Michael Caron, Taun Beddes, Michael Pace, Brent Black Nov 2021

Evaluation Of Cold-Hardy Grapes On The Wasatch Front, Michael Caron, Taun Beddes, Michael Pace, Brent Black

All Current Publications

Grapes can be an excellent addition to home gardens and a revenue opportunity for small-acreage farms. Utah’s Wasatch Front region, along with portions of Cache Valley, are well suited to grow grapes, particularly the more cold-hardy cultivars. Many new cold-hardy cultivars have been introduced over the last few decades, including both wine and table types. However, many of these newer cultivars have not been adequately tested in Utah’s unique climate. Utah State University Extension conducted a grape cultivar comparison planting in Lehi, Utah. This fact sheet reviews the outcomes of the study and offers information on tested varieties that have …


Low Tunnels For Field Cut Flower Production, Shannon Rauter, Melanie Stock, Brent Black, Dan Drost Nov 2021

Low Tunnels For Field Cut Flower Production, Shannon Rauter, Melanie Stock, Brent Black, Dan Drost

All Current Publications

Cut flower production in Utah can be limited by cold winters, late-spring freezes, daily temperature fluctuations, canyon winds, and intense sunlight. For growers who lack the space to construct a high tunnel, low tunnels can advance, extend, and improve seasonal production. Temperature increases from low tunnels during winter and spring can increase emergence and yield compared to unprotected beds, but require venting to avoid heat damage. During summer, low tunnels easily transition into shade structures that provide cooling and protection from the sun. This fact sheet describes a simple and cost-effective low tunnel design with metal-conduit hoops that are tall …


Sycamore Scale (Stomacoccus Platani), Marion Murray, Ryan Davis Sep 2021

Sycamore Scale (Stomacoccus Platani), Marion Murray, Ryan Davis

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Sycamore scale feeds on foliage of London planetree and California sycamore in urbanized areas throughout Utah. The insect is difficult to see with the naked eye, so we rely on the primary symptom of yellow-to-brown leaf spots. If needed, the timing of treatment is at bud break and involves oil application and/or a soil-applied systemic insecticide.


Powdery Mildews On Vegetables, Nick Volesky, Marion Murray, Claudia Nischwitz Aug 2021

Powdery Mildews On Vegetables, Nick Volesky, Marion Murray, Claudia Nischwitz

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Powdery mildew is one of the most easily recognized fungal plant diseases. It is categorized by spots or patches of white-to-gray powder-like growth on foliage, stems, or fruit. Roughly 700 species exist that infect grasses, ornamentals, weeds, fruit trees, landscape trees, shrubs, and vegetables. The closely related species of fungi that cause powdery mildew are host-specific, meaning they cannot survive without the proper host. Powdery mildew fungi spread in conditions of low rainfall and hot temperatures, making Utah’s climate the perfect environment. This fact sheet provides information on powdery mildew and its management.


Plagas De Orugas De Vegetales Del Género Brassica, Marion Murray, Diane G. Alston, Celina Wille Jul 2021

Plagas De Orugas De Vegetales Del Género Brassica, Marion Murray, Diane G. Alston, Celina Wille

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Los cultivos de Brassica albergan muchas plagas de insectos diferentes, inclusive varias especies de orugas. Los tres más comunes en Utah son la palomilla dorso de diamante (Plutella xylostella), la oruga de la col (Trichoplusia ni), y el gusano importado de las coles (Pieris rapae).


Insectos Cara De Gato, Diane G. Alston, Marion Murray, Celina Wille Jul 2021

Insectos Cara De Gato, Diane G. Alston, Marion Murray, Celina Wille

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Hay una serie de insectos con el hábito alimenticio de perforar y succionar que pueden causar deformidad y lesiones del tipo cara de gato en los frutales de pepita y hueso, como la chinche ligus, la chinche hedionda y la chinche del boxelder. La lesión cara de gato es causada cuando la chinche se alimenta agujerando los botones florales y la fruta. El resultado son depresiones, deformidades y cicatrices desagradables en la fruta. El nombre “cara de gato” proviene de la forma distorsionada de la fruta que se asemeja a las mejillas fruncidas de un gato. Además de los insectos …


Enfermedad De Los Mil Cancros Del Nogal, Claudia Nischwitz, Marion Murray, Celina Wille Jul 2021

Enfermedad De Los Mil Cancros Del Nogal, Claudia Nischwitz, Marion Murray, Celina Wille

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Mil cancros es una enfermedad recientemente reconocida de los nogales, causada por un hongo (Geosmithia morbida) que se transmite por el escarabajo de la ramita del nogal (Pityophthorus juglandis). El escarabajo es endémico de la región autóctona del nogal de Arizona (Arizona, Nuevo México y Chihuahua, México), y fue identificado por primera vez en Utah en 1988.


Irrigation System Maintenance, Candace Schaible, Kelly Kopp, Jennie Hoover Jul 2021

Irrigation System Maintenance, Candace Schaible, Kelly Kopp, Jennie Hoover

All Current Publications

Irrigation system maintenance is necessary to ensure the most efficient use of the water that is being applied. Efficient irrigation is important because over two-thirds of the total water used in the average Utah home is applied to the landscape. With the natural drought cycles that occur in Utah and the growing population, efficient water use is critical. These maintenance recommendations will help you evaluate your irrigation system before using it each spring and also throughout the growing season.


Barrenador Grande Del Durazno, Marion Murray, Diane G. Alston, Celina Wille Jul 2021

Barrenador Grande Del Durazno, Marion Murray, Diane G. Alston, Celina Wille

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El barrenador grande del durazno (orden Lepidóptera, familia Sesiidae) es originario de América del Norte, donde las cerezas y ciruelas silvestres son sus huéspedes nativos. Es una plaga esporádica en los frutales de hueso o carozo de Utah, pero si no se controla, puede ser lo suficientemente grave como para causar la pérdida del árbol.


Maples In The Landscape, Sheriden M. Hansen, Jaydee Gunnell, Andra Emmertson May 2021

Maples In The Landscape, Sheriden M. Hansen, Jaydee Gunnell, Andra Emmertson

All Current Publications

Maple trees (Acer sp.) are a common fixture and beautiful addition to Utah landscapes. There are over one hundred species, each with numerous cultivars (cultivated varieties) that are native to both North America and much of Northern Europe. Trees vary in size and shape, from small, almost prostrate forms like certain Japanese maples (Acer palmatum) and shrubby bigtooth maples (Acer grandidentatum) to large and stately shade trees like the Norway maple (Acer platanoides). Tree shape can vary greatly, ranging from upright, columnar, rounded, pyramidal to spreading. Because trees come in a range …


High Tunnel Pest Management - Aphids, Nick Volesky, Zachery R. Schrumm Apr 2021

High Tunnel Pest Management - Aphids, Nick Volesky, Zachery R. Schrumm

All Current Publications

Aphids are a common pest found on high tunnel crops such as fruits, vegetables, ornamentals, grasses, and weeds. Four aphid species commonly found in Utah in high tunnels are green peach aphid (Myzus persicae), melon aphid (Aphis gossypii), potato aphid (Macrosiphum euphorbiae), and cabbage aphid (Brevicoryne brassicae). This fact sheet describes different aphids and reviews the aphid life cycle. It also addresses how to monitor for damage caused by aphids and cultural, biological, and chemical controls.