PPFS-AG-S-13: Soybean Diseases Control Series: Soybean Cyst Nematode

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

Soybean cyst nematode (SCN) exists virtually everywhere soybean is grown in Kentucky. The pest is insidious in that significant yield damage often occurs without the appearance of visible disease symptoms. This is an extremely important point because it suggests that farmers are frequently unaware that SCN is active and doing damage in a field.

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PR-603: 2009 Fruit and Vegetable Research Report

Doug Archbold, Paul Bachi, Julie Beale, Tim Coolong, Vaden Fenton, John Hartman, Ryan Hays, Otto Hoffman, Nathan Howard, Nathan Howell, June Johnston, Terry Jones, Amy Lentz Poston, Sara Long, Brandon O'Daniel, Janet Pfeiffer, Rebecca Schnelle, Kenny Seebold, Pam Sigler, Darrell Slone, Chris Smigell, John Snyder, Dave Spalding, Crystal Sparks, John Strang, Ginny Travis, Richard Warner, Jeff Wheeler, John Wilhoit, Patsy Wilson, Dwight Wolfe | Dec. 11, 2009 (New)

The 2009 Fruit and Vegetable Crops Research Report includes results for more than 45 field research and demonstration trials that were conducted in 19 counties in Kentucky. Many of these reports include data on varietal performance as well as different production methods in an effort to provide growers with better tools that they can use to improve fruit and vegetable production in Kentucky.

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PPFS-AG-S-20: Cercospora Leaf Blight in Kentucky

Don Hershman | Oct. 1, 2009 (New)

In most years, Cercospora leaf blight (CLB) is a minor disease problem in Kentucky soybeans. It is one of the more common "late-season" diseases, but usually comes in too little, too late to cause damage. However, in wet, late seasons like the one we experienced in 2009, significant yield and grain/seed quality losses can occur in fields that develop severe CLB before pod fill has completed.

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ID-177: Comparing No-Till and Tilled Wheat in Kentucky

Dottie Call, Larry Grabau, John Grove, Jim Herbek, Don Hershman, John James, Doug Johnson, Jim Martin, Lloyd Murdock, Dave Van Sanford | Aug. 26, 2009 (New)

Historically, wheat planting in Kentucky has involved tillage. With conventional tillage practices, most residues from the previous crop are cut and buried prior to seeding wheat. No-till wheat planting eliminates tillage and reduces soil erosion, particularly on sloping soils, as well as reducing labor, machinery, and energy costs.

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PPFS-OR-T-1: Weather Favorable for Cottony Blight in Turfgrasses

Paul Vincelli | Aug. 1, 2009 (Minor Revision)

Hot, humid weather with occasional showers is favorable for cottony blight, caused by various Pythium species. This disease, also known as Pythium blight, can be very destructive in swards of creeping bentgrass and perennial ryegrass in a high-maintenance setting, such as golf courses, croquet courts, etc. Cottony blight can occasionally be found on other cool-season turfgrasses, though very infrequently.

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PPFS-AG-F-5: Crown Rots of Alfalfa

Paul Vincelli | May. 1, 2009 (Minor Revision)

Crown rots are chronic disease problems of alfalfa throughout the world. Crown rots cause loss of stand and forage yield in several ways. If the crowns are rotted severely enough, infected plants will die simply by being choked off. Carbohydrates for winter survival are stored in the crown and upper taproot. By rotting this area, crown rots also make alfalfa plants more sensitive to winter kill. Some crown rot fungi produce toxins, thus weakening or even killing the plant.

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PPFS-AG-F-3: Common Alfalfa Seedling Diseases and Disorders

Ray Smith, Paul Vincelli | Mar. 1, 2009 (Minor Revision)

Alfalfa seedlings are subject to a number of biotic and abiotic problems which can affect establishment. Several of the more common seedling diseases and disorders are described below. This information is being provided as a diagnostic aid; publications which provide specific management and production information can be found in the resource list.

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PPFS-AG-S-8: Value of Wheat Residue in Soybean Cyst Nematode Management

Don Hershman | Mar. 1, 2009 (Minor Revision)

Soybean Cyst Nematode (SCN; Heterodera glycines) is the most widespread and significant pest of soybean in Kentucky. SCN is managed primarily by rotating fields to non-host crops (such as corn) and using SCN-resistant varieties. However, for a variety of reasons, producers occasionally desire to plant a SCN-susceptible variety.

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PPFS-AG-F-4: "Emergency" Inoculation for Poorly Inoculated Legumes

Garry Lacefield, Ray Smith, Paul Vincelli | Feb. 1, 2009 (Minor Revision)

Frequently, stunted and yellowed legumes are thought by growers to be diseased. Close examination often reveals that such "diseased" plants are actually just poorly nodulated.

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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.