Numbered Publications: Plant Pathology
PPFS-AG-F-2: Risk Factors for Sclerotinia Crown and Stem Rot in Fall-Seeded Alfalfa
Paul Vincelli | Dec. 1, 2008 (Minor Revision)
Alfalfa seeded during late summer or fall is susceptible to the destructive disease Sclerotinia crown and stem rot. Fall-seeded stands are particularly vulnerable to this disease because the young seedlings have not had sufficient time to develop adequate resistance before infectious spores of the pathogen are produced in late October. In contrast, spring-seeded stands are able to develop larger, more resistant crowns prior to this infectious period. Thus, spring plantings are better able to withstand an attack, should these air-borne spores be present in the field.
PR-572: 2008 Fruit and Vegetable Research Report
Doug Archbold, Tim Coolong, Tom Cottrell, Rick Durham, Vaden Fenton, John Hartman, Nathan Howard, Nathan Howell, Wuyang Hu, Dewayne Ingram, Terry Jones, Kaan Kurtural, Joe Masabni, Kenny Seebold, Bonnie Sigmon, Chris Smigell, John Snyder, Dave Spalding, John Strang, Paul Vincelli, Richard Warner, John Wilhoit, Mark Williams, Tim Woods | Dec. 1, 2008 (New)
PPFS-AG-F-6: Alfalfa Diseases Caused by Rhizoctonia Fungi
Paul Vincelli | Nov. 1, 2008 (Minor Revision)
Rhizoctonia fungi, particularly Rhizoctonia solani, are found in most agricultural soils in Kentucky. These fungi are natural soil inhabitants that colonize and live on dead organic matter. Under the right environmental conditions, the Rhizoctonia organisms are often able to attack living plants, including alfalfa. When warm, wet conditions prevail, Rhizoctonia fungi can cause just about every conceivable type of alfalfa disease.
PPFS-AG-F-1: Summertime Foliar Diseases of Alfalfa
Paul Vincelli | Nov. 1, 2008 (Minor Revision)
Warm, humid weather can favor development of foliar diseases of alfalfa during summer.
PPFS-FR-S-14: Fruit Rots of Grape
John Hartman, Cheryl Kaiser | Oct. 1, 2008 (New)
Kentucky's typically wet springs and warm, humid summers favor the development of several fruit rots of grape. These include anthracnose, bitter rot, black rot, Botrytis bunch rot, ripe rot, and sour rot.
PPFS-FR-S-13: Downy Mildew of Grape
Julie Beale, John Hartman, Cheryl Kaiser | Sep. 1, 2008 (New)
Downy mildew is an important disease of commercial and backyard grapes in Kentucky. This disease causes direct losses when flowers, clusters, and shoots decay and yields are reduced. Indirect losses result when premature defoliation predisposes grapevines to winter injury. It may take a vineyard several years to fully recover after severe winter injury.
HO-81: Ornamental Corn Production
Ric Bessin, Tim Coolong, Terry Jones, Joe Masabni, Kenny Seebold, Tim Woods | Jul. 10, 2008 (Minor Revision)
PPFS-FR-S-10: Blueberry Diseases
Paul Bachi, Julie Beale, John Hartman, Sara Long | Jan. 1, 2008 (New)
Kentucky blueberry growers sometimes experience plant and crop losses due to diseases. While most losses are due to root rot, or to stem and twig canker diseases, fruit rots and nutritional problems can also reduce yields. With good crop management, most blueberry diseases can be avoided.
PR-555: 2007 Fruit and Vegetable Research Report
Doug Archbold, Tim Coolong, Tom Cottrell, Courtney Flood, John Hartman, Nathan Howard, Nathan Howell, Wuyang Hu, Terry Jones, Kaan Kurtural, Joe Masabni, Kenny Seebold, Bonnie Sigmon, Chris Smigell, John Snyder, Dave Spalding, John Strang, Richard Warner, John Wilhoit, Mark Williams, Tim Woods | Nov. 29, 2007 (New)
PR-554: 2007 Nursery and Landscape Research Report
Bob Anderson, Sharon Bale, Chris Barton, Win Dunwell, Rick Durham, Bill Fountain, Richard Gates, Bob Geneve, John Hartman, Ken Haynes, Dewayne Ingram, Bob McNeil, Dan Potter, Lisa Vaillancourt, Richard Warner, Mark Williams, Tim Woods | Nov. 26, 2007 (New)
