PPFS-GEN-11: Diagnosis of "No Disease"

Julie Beale, Brenda Kennedy, Sara Long, Nicole Gauthier | Mar. 1, 2014 (New)

Extension Agents and growers may occasionally receive diagnostic reports from the University of Kentucky Plant Disease Diagnostic Laboratory that indicate "no disease was found." One or both of the following explanations may account for the diagnosis of "No Disease."

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PR-673: 2013 Fruit and Vegetable Research Report

Doug Archbold, Ric Bessin, Shubin Saha, Kenny Seebold, John Snyder, John Strang, Nicole Gauthier, Patsy Wilson | Jan. 8, 2014 (New)

Variety trials included in this year's publication include: cabbage, asparagus, bell peppers, blueberries, blackberries, raspberries, apples, peaches, and grapes. Additional research trials include organic management of cucumber beetles, financial comparison of organic potato integrated pest management systems, and effect of organic fertilizer materials for production of kale.

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ID-84: Iron Deficiency of Landscape Plants

Cheryl Kaiser, Edwin Ritchey, Nicole Gauthier | Oct. 16, 2013 (Major Revision)

Iron deficiency is a nutritional deficit that can occur in woody and herbaceous plants in landscapes, nurseries, greenhouses, and production fields. It is most often associated with soils that have neutral or alkaline pH (pH 7.0 or above). Plants that grow best in acidic soils are particularly vulnerable to this condition. In Kentucky, iron deficiency is most commonly observed on pin oak, willow oak, azalea, rhododendron, and blueberry, but other woody plants are also susceptible.

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PPFS-GEN-5: Fruit, Orchard, and Vineyard Sanitation

David Koester, Faye Tewksbury, Nicole Gauthier | Aug. 1, 2013 (New)

Diseases can become a significant problem in commercial and home fruit plantings, resulting in premature leaf drop, fruit decay, dieback, decline, and even plant death. When diseases do occur, it is often presumed that fungicides are the most important and effective disease management tools available. However, a good sanitation program can help reduce the need for chemical controls and can improve the effectiveness of other practices for managing disease. This often-overlooked disease management tool reduces pathogen numbers and eliminates infective propagules that cause disease.

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PPFS-GEN-4: Landscape Sanitation

Amanda Sears, Nicole Gauthier | Jul. 1, 2013 (New)

Diseases can become a significant problem in commercial and home landscape plantings (Figure 1a), resulting in premature leaf drop, dieback, decline, and even plant death. When diseases do occur, it is often presumed that fungicides are the most important and effective disease management tools available. However, a good sanitation program can help reduce the need for chemical controls and can improve the effectiveness of other practices for managing disease. This often-overlooked disease management tool reduces pathogen numbers and eliminates infective propagules that cause disease.

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ID-52: What's Wrong with My Taxus?

Rick Durham, Cheryl Kaiser, Lee Townsend, Nicole Gauthier | Jun. 5, 2013 (Major Revision)

Taxus (yew) is an evergreen shrub commonly found in Kentucky landscapes. Numerous conditions can cause these shrubs to exhibit yellowing and browning symptoms. While diseases and insect pests can result in damage, Taxus troubles are often the result of adverse growing conditions. Pinpointing the specific cause requires a thorough examination of the affected shrub, an investigation of the surrounding area, and knowledge of possible stress factors.

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PPFS-OR-W-17: Leaf Scorch and Winter Drying of Woody Plants

Rick Durham, Cheryl Kaiser, Nicole Gauthier | Jun. 1, 2013 (New)

Leaf scorch symptoms can develop whenever water needed for growth and health of plant foliage is insufficient. While symptoms are often due to unfavorable environmental conditions, leaf scorch can also result from an infectious disease. Symptoms, possible causes, and management of leaf scorch are discussed below.

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PPFS-OR-W-18: Verticillium Wilt of Woody Plants

Cheryl Kaiser, Nicole Gauthier | Mar. 1, 2013 (New)

Verticillium wilt can affect a wide range of ornamental trees and shrubs, as well as a number of tree fruits and woody small fruits. Over 400 herbaceous and woody plant species have been reported as hosts for this disease.

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PR-656: 2012 Fruit and Vegetable Research Report

Ben Abell, Angela Anandappa, Doug Archbold, Paul Bachi, Julie Beale, Ty Cato, Tim Coolong, June Johnston, Brenda Kennedy, Sara Long, Sean Lynch, Kenny Seebold, Pam Sigler, Chris Smigell, John Snyder, Dave Spalding, John Strang, Ginny Travis, Zheng Wang, Nicole Gauthier, Jeff Wheeler, Mark Williams, Neil Wilson, Patsy Wilson, Dwight Wolfe, Tim Woods, Shang-Ho Yang | Dec. 6, 2012 (New)

Fruit and vegetable production in Kentucky continues to grow. The 2012 Fruit and Vegetable crops research report includes results for more than 18 field research plots and several demonstration trials. This year fruit and vegetable research and demonstration trials were conducted in more than 15 counties in Kentucky. Research was conducted by faculty and staff from several departments within the University of Kentucky College of Agriculture including: Horticulture, Plant Pathology, Entomology, and Agricultural Economics. This report also includes collaborative research projects conducted with faculty and staff at Kentucky State University.

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PPFS-FR-S-16: Black Rot of Grape

Cheryl Kaiser, Nicole Gauthier | Oct. 1, 2012 (New)

Black rot is the most prevalent and one of the most important grape diseases in Kentucky. While this disease can affect all young developing plant tissues above ground, fruit infections are the most destructive. Without an adequate disease management program, both home and commercial vineyards suffer significant yield losses.