PPFS-AG-SG-4: Wheat Spindle Streak Mosaic Virus (WSSMV)

Don Hershman | Feb. 1, 2011 (Minor Revision)

Wheat spindle streak mosaic (WSSM), also known as wheat yellow mosaic, is a common virus disease that affects only wheat. In most years, WSSM has little to no impact on crops grown in Kentucky. However, significant yield damage can occur in highly susceptible varieties when conditions favor infection and subsequent disease development.

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PR-621: 2010 Nursery and Landscape Research Report

Bernadette Amsden, Paul Bachi, Julie Beale, Steve Berberich, Ed Dixon, Win Dunwell, Bill Fountain, Amy Fulcher, Carey Grable, John Hartman, Dewayne Ingram, June Johnston, Katie Kittrell, Janet Lensing, Sara Long, John Obrycki, Dan Potter, Rebecca Schnelle, Ginny Travis, Paul Vincelli, Dwight Wolfe | Jan. 28, 2011 (New)

The UK Nursery and Landscape Program coordinates the efforts of faculty, staff, and students in several departments within the College of Agriculture tor the benefit of the Kentucky nursery and landscape industry.

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PPFS-AG-SG-3: Barley Yellow Dwarf

Don Hershman, Doug Johnson | Jan. 1, 2011 (Minor Revision)

Barley yellow dwarf (BYD) is a virus disease that can cause serious yield loss when stunted and discolored plants are widely distributed in a field. Severe losses due to BYD occur state-wide about every five years or so, but individual fields are impacted to varying degrees each year. There are many diseases that can reduce wheat yields, but in the case of BYD, most of the disease management decisions (such as field selection, tillage practices, variety, and planting date) are made by the time the seed is actually sown in the fall.

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PR-608: 2010 Fruit and Vegetable Research Report

Doug Archbold, Paul Bachi, Sandra Bastin, Julie Beale, Steve Berberich, Ric Bessin, Bob Caudle, Jennie Condra, Tim Coolong, Leighia Eggett, Vaden Fenton, Lucas Hanks, John Hartman, Nathan Howell, Kelly Jackson, June Johnston, Chlodys Johnstone, Patrick Kelley, Katie Kittrell, Janet Lensing, Amy Lentz Poston, Sara Long, Patty Lucas, Sean Lynch, Logan Minter, John Obrycki, Janet Pfeiffer, Sutapa Roy, Marc Ruberg, Rebecca Schnelle, Delia Scott, Kenny Seebold, Pam Sigler, Darrell Slone, Chris Smigell, John Snyder, Dave Spalding, John Strang, Ginny Travis, Joseph Tucker, Sarah Vanek, Jeff Wheeler, John Wilhoit, Mark Williams, Patsy Wilson, Dwight Wolfe | Dec. 20, 2010 (New)

Fruit and vegetable production in Kentucky continues to grow. The 2010 Fruit and Vegetable crops research report includes results for more than 34 field research and demonstration trials that were conducted in 20 counties in Kentucky.

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CCD-CP-115: Rhubarb

Matthew Ernst, Cheryl Kaiser | Dec. 20, 2010 (Minor Revision)

Rhubarb (Rheum rhabarbarum) is a winter-hardy herbaceous perennial grown for its edible leaf stalks. The tart-flavored stalks are most commonly used in pies, often in combination with strawberries for added sweetness. The leaves themselves are not eaten, either cooked or raw, as they contain toxic levels of oxalic acid.

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PPFS-MISC-4: Real-time PCR Detection of Xylella fastidiosa is Independent of Sample Storage Time and Temperature

Bernadette Amsden, John Hartman, Paul Vincelli | Nov. 1, 2010 (New)

The xylem-limited bacterium Xylella fastidiosa, first associated with Pierce's disease of grapevines and alfalfa dwarf disease in 1973 (4) continues to be an economically important pathogen of several commercial crops. It also causes bacterial leaf scorch in urban shade trees such as sycamore, oaks, maples, mulberry, and elm (5). The usual course of action, in an effort to control the spread of this pathogen by insect vectors (9), is to prune out infected branches and vines or to rogue infected plants. Therefore, timely testing of suspect hosts is important.

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PPFS-AG-S-23: Soybean Rust Fungicide Use Guidelines

Don Hershman | Jun. 1, 2010 (Minor Revision)

Effective use of fungicides to control soybean rust is not very complicated. The whole idea is to wait to spray until the soybean rust risk is at least moderate, and make a fungicide application before significant infection has occurred. This means applying fungicides when plant pathologists in and around Kentucky are "sounding the alarm," but before symptoms are evident. Many soybean producers in the deep South have been using fungicides to control soybean rust since 2005 with considerable success. I believe we will have the same experience if it ever becomes necessary to apply fungicides for soybean rust in Kentucky.

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PPFS-AG-SG-2: Wheat Bacterial Streak

Paul Bachi, Don Hershman | May. 1, 2010 (New)

Occasionally, wheat leaves and spikes are invaded by the bacterium, Xanthomonas campestris pv. translucens. When leaf tissue is affected, the resulting disease is known as bacterial streak. When the bacterium invades the head, the disease is called black chaff. While this disease has primarily been a problem in the lower mid-South, it is often found in Kentucky in fields that have been impacted by strong winds with blowing soil or following a damaging freeze.

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ID-77: Nut Tree Growing in Kentucky

Ric Bessin, John Hartman, Terry Jones, Joe Masabni, John Strang | Apr. 22, 2010 (Major Revision)

Kentucky is generally well suited for growing nut trees. Northern pecans, black walnuts, heartnuts, hickory nuts, hardy Persian walnuts (Carpathian strain), American hazelnuts, and Chinese chestnuts all grow well in the state. Although most nut trees are grown by hobbyists and backyard gardeners, several varieties appear to have potential for commercial production, particularly some of the USDA pecan selections and some Chinese chestnut varieties.

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PR-602: 2009 Nursery and Landscape Research Report

Sharon Bale, Win Dunwell, Rick Durham, Bill Fountain, Bob Geneve, John Hartman, Dewayne Ingram, John Obrycki, Dan Potter, Richard Warner, Tim Woods | Jan. 7, 2010 (New)

The 2009 report has been organized according to our primary areas of emphasis: production and economics, pest management, and plant evaluation. These areas reflect stated industry needs, expertise available at UK, and the nature of research projects around the world that generate information applicable to Kentucky.