In descending order, by date published.
12/13/2022 (major revision)
Authors: Carl Bradley, J.D. Green, John Grove, Greg Halich, Erin Haramoto, Cam Kenimer, Carrie Knott, Chad Lee, Travis Legleiter, Sam McNeill, Michael Montross, Hanna Poffenbarger, Dan Quinn, Edwin Ritchey, Montse Salmeron, Jordan Shockley, Tim Stombaugh, Raul Villanueva, Ole Wendroth, Kiersten Wise
Corn is a summer annual crop that is grown widely across Kentucky, the United States, and around the world. In the United States, field corn is grown on about 85 million acres (34 million hectares) while sweet corn is grown on about 600,000 acres (240,000 hectares) and popcorn is grown on about 200,000 acres (81,000 hectares). Most of the field corn across the United States is yellow dent corn. In Kentucky, both yellow dent corn and white dent corn are grown. Corn acres in Kentucky peaked at 3.85 million in 1917 and have been around 1.2 to 1.5 million acres since the 1970s (USDA-NASS, 2020). Most corn in Kentucky today is grown in minimum tillage or no-tillage conditions. Most corn acres are rotated with soybean or wheat and double-crop soybeans.
Departments: Agricultural Economics, Biosystems and Agricultural Engineering, Entomology, Plant and Soil Sciences, Plant Pathology
Series: Interdepartmental (ID series)
Size: 62.42 mb
Pages: 108
3/8/2021 (major revision)
Authors: Carl Bradley, Kiersten Wise
Corn seeds and seedlings are susceptible to infection by a number of soilborne fungi. When planted into cool, wet soils, seeds may decay before or after germination. Affected plants that survive past the seedling stage may go on to produce an ear if nodal roots develop normally, although stunting and reduced ear size can occur as a result of seedling diseases. Severely affected plants may die during stressful weather as the result of an inadequate root system.
Departments: Plant Pathology
Series: Corn Disease: Plant Pathology Factsheet (PPFS-AG-C series)
Size: 160 kb
Pages: 2
2/15/2021 (new)
Authors: Nolan Anderson, Carl Bradley, Kiersten Wise
Northern corn leaf blight (NCLB) is a significant foliar corn disease in Kentucky. This disease has been damaging in the United States Corn Belt since the early 1900s, but has increased in severity and prevalence throughout the U.S., including Kentucky. This publication describes the symptoms and signs of NCLB, conditions that favor disease development, and management methods to reduce impact on yield.
Departments: Plant Pathology
Series: Corn Disease: Plant Pathology Factsheet (PPFS-AG-C series)
Size: 800 kb
Pages: 3
1/13/2021 (new)
Authors: Carl Bradley, John Grove, Carrie Knott, Chad Lee, Travis Legleiter, Sam McNeill, Edwin Ritchey, Raul Villanueva, Kiersten Wise
A quick resource on grain crop production.
Departments: Biosystems and Agricultural Engineering, Entomology, Plant and Soil Sciences, Plant Pathology
Series: Interdepartmental (ID series)
Size: 370 kb
Pages: 8
1/13/2021 (new)
Authors: Carl Bradley, John Grove, Carrie Knott, Chad Lee, Travis Legleiter, Sam McNeill, Edwin Ritchey, Raul Villanueva, Kiersten Wise
A quick resource on grain crop production. NOTE: This poster is 25 x 38 inches. ID-268 is the booklet-sized version.
Departments: Biosystems and Agricultural Engineering, Entomology, Plant and Soil Sciences, Plant Pathology
Series: Interdepartmental (ID series)
Size: 191 kb
Pages: 1
7/1/2019 (new)
Authors: Nolan Anderson, Carl Bradley, Kelsey Mehl, Kiersten Wise
Curvularia leaf spot is a corn disease that was reported for the first time in the United States in Louisiana in 2017, and was confirmed in Kentucky in 2018. While the impact of Curvularia leaf spot in Kentucky is not yet known, this disease causes yield loss in tropical areas, and is considered to be one of the most important diseases of corn in China. This publication describes the symptoms and cause of disease, conditions that favor disease development, and foliar diseases that have similar symptoms.
Departments: Plant Pathology
Series: Corn Disease: Plant Pathology Factsheet (PPFS-AG-C series)
Size: 1.78 mb
Pages: 3
9/1/2018 (new)
Authors: Nolan Anderson, Carl Bradley, Kelsey Mehl, Kiersten Wise
Diplodia leaf streak of corn is a disease that has become more prevalent in Kentucky in recent years. It is commonly observed in fields in western Kentucky and is easily confused with other corn foliar diseases. Small, round, dark brown-to-tan lesions are first observed on leaves. Dark concentric rings may be observed in the center of early lesions at the infection site on the leaf. These lesions expand lengthwise in long streaks from the infection point and form elongated elliptical lesions. In severe cases, lesions can coalesce to blight large areas of affected leaves.
Departments: Plant Pathology
Series: Corn Disease: Plant Pathology Factsheet (PPFS-AG-C series)
Size: mb
Pages: 3
8/1/2018 (new)
Authors: Carl Bradley, Emily Pfeufer, Nicole Ward Gauthier
Southern blight affects hundreds of different plants, including vegetables, field crops, ornamentals, and fruit. This disease is also known as southern stem blight, basal stem rot, Sclerotium blight, crown rot, and white mold (not to be confused with Sclerotinia white mold). Depending on host plant, production system, and environmental conditions, the severity of this disease can vary from a minor problem on isolated plants to extensive damage causing significant crop losses.
Departments: Plant Pathology
Series: General Plant Disease: Plant Pathology Factsheet (PPFS-GEN series)
Size: mb
Pages: 5
6/7/2018 (new)
Authors: Ric Bessin, Carl Bradley, J.D. Green, John Grove, Greg Halich, Erin Haramoto, Carrie Knott, Chad Lee, Travis Legleiter, Josh McGrath, Sam McNeill, Javier Reyes, Edwin Ritchey, Montse Salmeron, Jordan Shockley, Claire Venard, Raul Villanueva, Ole Wendroth, Kiersten Wise, Xi Zhang
This publication provides information on soybean growth and development, principles of variety selection, and management practices to maximize soybean profitability in Kentucky.
Departments: Agricultural Economics, Biosystems and Agricultural Engineering, Entomology, Plant and Soil Sciences, Plant Pathology
Series: Interdepartmental (ID series)
Size: 38.99 mb
Pages: 84
2/1/2018 (new)
Authors: Carl Bradley, Brenda Kennedy, Kelsey Mehl, Kiersten Wise
Physoderma brown spot can be a striking foliar disease that is periodically observed in field corn in Kentucky. This publication describes the symptoms and cause of disease, conditions that favor disease development, and options for disease management.
Departments: Plant Pathology
Series: Corn Disease: Plant Pathology Factsheet (PPFS-AG-C series)
Size: 743 kb
Pages: 2
10/11/2017 (new)
Authors: Carl Bradley, Kelsey Mehl, Kiersten Wise
Diplodia ear rot can reduce yield and grain quality by damaging kernels, lowering grain test weight, and reducing grain fill. Incidence of affected ears in the field can vary from 1% or 2% to as high as 80%. Although mycotoxins have been associated with Diplodia ear rot in South America and South Africa, there have been no reports of livestock feeding issues due to mycotoxins linked to Diplodia ear rot in the United States.
Departments: Plant Pathology
Series: Corn Disease: Plant Pathology Factsheet (PPFS-AG-C series)
Size: 990 kb
Pages: 3
10/11/2017 (new)
Authors: Carl Bradley, Kelsey Mehl, Kiersten Wise
Holcus leaf spot, a bacterial disease, can be seen sporadically in Kentucky cornfields, and it is challenging to diagnose. This publication describes the disease symptoms, conditions that favor disease, and how to distinguish holcus spot from herbicide injury that can mimic this disease.
Departments: Plant Pathology
Series: Corn Disease: Plant Pathology Factsheet (PPFS-AG-C series)
Size: 889 kb
Pages: 3
1/1/2017 (new)
Authors: Carl Bradley, Kelsey Mehl, Emily Pfeufer
Historically, Stewart's wilt of corn has resulted in losses for corn producers. Although this disease still occurs occasionally, it has become less prevalent in recent years in Kentucky and surrounding states. Stewart's wilt has been known by other names, such as bacterial leaf blight, Stewart's leaf blight, and maize bacteriosis.
Departments: Plant Pathology
Series: Corn Disease: Plant Pathology Factsheet (PPFS-AG-C series)
Size: 1.45 mb
Pages: 3
2/8/2016 (new)
Authors: Carl Bradley, Doug Johnson, Carrie Knott, Chad Lee, Jim Martin, Sam McNeill, Edwin Ritchey
Grain sorghum can be used for a variety of purposes including animal feed, unleavened breads, cakes, wallboard, starch, dextrose, brooms, ethanol, high quality wax, and alcoholic beverages. Grain sorghum produced in Kentucky is most commonly used for animal feed and was first grown here in the 1920s. Although acreage in Kentucky has fluctuated considerably over the years, yields have generally exceeded the national average since the 1970s, indicating that grain sorghum is an option for producers interested in diversifying grain crop operations.
Departments: Biosystems and Agricultural Engineering, Entomology, Plant and Soil Sciences, Plant Pathology
Series: Interdepartmental (ID series)
Size: 1.80 mb
Pages: 8
