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Articles 91 - 120 of 205
Full-Text Articles in Horticulture
Water-Wise Landscape Ideas For Existing Landscapes, Shital Poudyal
Water-Wise Landscape Ideas For Existing Landscapes, Shital Poudyal
All Current Publications
This fact sheet outlines five easy ways to convert an existing landscape to a water-wise landscape without substantial renovation for those who do not have the time, resources, or expertise to renovate the existing landscape completely.
Abiotic Disorders Of Tomatoes, Nick Volesky, Marion Murray, Sheriden M. Hansen, Maegen A. Lewis
Abiotic Disorders Of Tomatoes, Nick Volesky, Marion Murray, Sheriden M. Hansen, Maegen A. Lewis
All Current Publications
Monitoring tomato plants regularly from seedling to harvest allows for early detection of abnormal conditions. Although tomato plants can be attacked by a variety of living organisms (insects, mites, pathogens, vertebrates), nonliving (abiotic) conditions can cause just as much damage. Abiotic diseases in tomato plants can arise from nutrient deficiencies, temperature extremes, abnormal lighting, chemical application, changes in water uptake, mechanical damage, genetic mutations, and more. This guide will cover most of the abiotic disorders and diseases that can affect tomatoes in Utah.
Fall-Bearing Cultivars: A High Tunnel System For Early Production, Alyssa Palmer, Brent Black
Fall-Bearing Cultivars: A High Tunnel System For Early Production, Alyssa Palmer, Brent Black
All Current Publications
Fresh red raspberries are a consumer favorite in Utah and have a high value but short shelf life, making them an excellent candidate crop for local direct market sales. However, Utah’s high-elevation valleys often experience harsh winter temperatures and short growing seasons, limiting raspberry yields. Raspberry plants exhibit one of two fruiting patterns: the summer-bearing type or the fall-bearing varieties, also referred to as “ever bearers” because of their ability to produce both fall and summer crops. These may be better suited in areas with harsh winter conditions that cause cane dieback. High tunnels can be an effective tool in …
Stock Cut Flower Production In Utah, Maegen Lewis, Melanie Stock, Brent Black, Dan Drost
Stock Cut Flower Production In Utah, Maegen Lewis, Melanie Stock, Brent Black, Dan Drost
All Current Publications
Stock (Matthiola incana) is a cool-season annual in Utah with the highest quality stems being produced in spring and fall. Plants produce a single stem with either single or double florets that are known for their sweet and strong clove-like scent. Stock can be transplanted in the high tunnel and field in early spring and is tolerant of light frosts. Stems require a trellis to promote straight growth and can reach 36 inches tall. In North Logan, UT, stock grown in a high tunnel began blooming 5-10 weeks earlier, had 55% greater marketability, and stems averaged 4-8 inches …
Vegetable Diseases Of Utah, Claudia Nischwitz, Marion Murray, Nick Volesky
Vegetable Diseases Of Utah, Claudia Nischwitz, Marion Murray, Nick Volesky
All Current Publications
This guide provides a list of vegetable crop diseases that have been documented in Utah along with some that are likely to occur. Plant diseases are caused by pathogens such as fungi, bacteria, viruses, and fungal-like organisms. Diagnosing specific plant diseases takes careful observation of signs, symptoms, and sometimes culturing and molecular testing in a laboratory setting.
Celosia Cut Flower Production In Utah, Anna Collins, Melanie Stock, Maegen A. Lewis, Sheriden M. Hansen
Celosia Cut Flower Production In Utah, Anna Collins, Melanie Stock, Maegen A. Lewis, Sheriden M. Hansen
All Current Publications
Celosia is a warm-season annual that can be grown in a field or high tunnel in Utah. Transplant plugs after last frost in the field and 6 to 8 weeks before last frost in a high tunnel. Celosia benefit from trellising to promote straight stems and do best with moderate soil fertility and frequent harvesting. Peak harvest occurs from July – September in the field and begins nearly one month earlier in a high tunnel. Once established, celosia thrive in Utah’s hot summers and can be used in fresh or dried arrangements.
Temperaturas Críticas De Primavera Para Yemas De Los Árboles Frutales, Michael Pace, Marion Murray
Temperaturas Críticas De Primavera Para Yemas De Los Árboles Frutales, Michael Pace, Marion Murray
All Current Publications
Esta publicación enumera las temperaturas primaverales críticas para las yemas de árboles frutales cuando el 10% y 90% de las yemas mueren en diferentes etapas de desarrollo después de 30 minutos de exposición.
Managing Vegetation Around Fruit Trees, Teryl Roper
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
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
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
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
Sycamore Scale (Stomacoccus Platani), Marion Murray, Ryan Davis
All Current Publications
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
Powdery Mildews On Vegetables, Nick Volesky, Marion Murray, Claudia Nischwitz
All Current Publications
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.
Irrigation System Maintenance, Candace Schaible, Kelly Kopp, Jennie Hoover
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.
Insectos Cara De Gato, Diane G. Alston, Marion Murray, Celina Wille
Insectos Cara De Gato, Diane G. Alston, Marion Murray, Celina Wille
All Current Publications
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
Enfermedad De Los Mil Cancros Del Nogal, Claudia Nischwitz, Marion Murray, Celina Wille
All Current Publications
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.
Barrenador Grande Del Durazno, Marion Murray, Diane G. Alston, Celina Wille
Barrenador Grande Del Durazno, Marion Murray, Diane G. Alston, Celina Wille
All Current Publications
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.
Plagas De Orugas De Vegetales Del Género Brassica, Marion Murray, Diane G. Alston, Celina Wille
Plagas De Orugas De Vegetales Del Género Brassica, Marion Murray, Diane G. Alston, Celina Wille
All Current Publications
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).
Maples In The Landscape, Sheriden M. Hansen, Jaydee Gunnell, Andra Emmertson
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
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.
Watering The Landscape: Make It Easier With Evapotranspiration (Et), Candace Schaible, Kelly Kopp, Helen Muntz
Watering The Landscape: Make It Easier With Evapotranspiration (Et), Candace Schaible, Kelly Kopp, Helen Muntz
All Current Publications
The American lawn is our nation’s single largest irrigated “crop” (Lindsey, 2005). In Utah, roughly 65% of our drinking water is applied to residential and commercial landscapes (Center for Water Efficient Landscaping, 2020). Landscapes are typically overwatered, which is why residential and commercial landscape watering is estimated to be one of the largest sources of potential water conservation in the urban setting (Endter-Wada et al., 2008). Plant materials also provide many environmental benefits, such as erosion control, water filtration, and temperature reduction. Knowing how much water to apply to the landscape can be a challenge and is one reason many …
Managing Suckers Around Fruit Trees, Samuel Johnson, Teryl Roper, Xin Dai
Managing Suckers Around Fruit Trees, Samuel Johnson, Teryl Roper, Xin Dai
All Current Publications
Many types of fruit trees produce suckers around the base of the tree. Crown suckers arise in the area immediately surrounding the tree trunk (Photo 1), and root suckers can arise from roots further away from the trunk. Not only are suckers around trees unsightly, but they can also harbor insect pests like wooly apple aphid and provide points of entry for diseases like fire blight. If suckers are profuse, they interfere with in-row weed management and can absorb systemic herbicides such as glyphosate. Some rootstocks used for fruit trees such as M.7 for apples and Mazzard for cherries are …
Can Trees Get Cancer?, Michael Kuhns
Can Trees Get Cancer?, Michael Kuhns
All Current Publications
This factsheet describes various cancer-like growths that are commonly found on trees.
Tree Seedling Planting Guide, Gabrielle Harden, Michael R. Kuhns
Tree Seedling Planting Guide, Gabrielle Harden, Michael R. Kuhns
All Current Publications
A seedling is a tree less than three feet in height. This fact sheet covers obtaining, planting, and caring for small seedling trees and other woody plants. These trees can be sold and planted as bare-root or containerized stock.
Preparing And Improving Garden Soil, Katie Wagner, Melanie Stock, Larry A. Sagers
Preparing And Improving Garden Soil, Katie Wagner, Melanie Stock, Larry A. Sagers
All Current Publications
A great garden starts with healthy soil. In Utah, there are unique considerations for creating and maintaining healthy soils. Native Utah soils are relatively low in organic matter. One of Utah’s most troublesome, pH-related deficiencies is iron chlorosis, a deficiency of plant-available iron. Soil salinity easily increases in Utah. This fact sheet addresses these challenges to help gardeners transform garden soils from brutal to beautiful!
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.
Vegetables, Fruits & Herbs Book, Utah State University
Vegetables, Fruits & Herbs Book, Utah State University
All Current Publications
This book is a compilation of 58 researched-based fact sheets written and compiled by Utah State University faculty and students. For more gardening resources provided by USU Extension please visit our gardening website at garden.usu.edu.
Soil Analysis Information Sheet, Utah State University
Soil Analysis Information Sheet, Utah State University
All Current Publications
No abstract provided.
Damping-Off, Claudia Nischwitz
Constructing A Low-Cost High Tunnel For Tall Crops (14.5' Wide By 10' Tall), Tiffany Maughan, Daniel Rowley, Brent Black, Dan Drost
Constructing A Low-Cost High Tunnel For Tall Crops (14.5' Wide By 10' Tall), Tiffany Maughan, Daniel Rowley, Brent Black, Dan Drost
All Current Publications
No abstract provided.