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Kiersten Wise


PPFS-AG-C-12

Crazy Top of Corn

10/12/2021 (new)
Authors: Kiersten Wise

Departments: Plant Pathology
Series: Corn Disease: Plant Pathology Factsheet (PPFS-AG-C series)
Size: mb
Pages: 3



PPFS-AG-C-11

Drone Fungicide Applications in Corn

3/12/2021 (new)
Authors: Ricky Arnett, Pat Hardesty, Nick Roy, Kiersten Wise

Foliar fungicide applications occur commonly in corn to manage foliar diseases such as gray leaf spot. University of Kentucky research indicates that the most effective application timing for both foliar disease control and yield benefits is at tasseling/early silking (VT/R1). Because of the height of corn at this growth stage, these applications are typically applied aerially, with fixed wing or helicopter aircraft. However, many Kentucky fields are small, surrounded by trees or other obstacles to aircraft, meaning that fungicide application is not an option in these areas.

Departments: Adair County, Green County, Plant Pathology, Taylor County
Series: Corn Disease: Plant Pathology Factsheet (PPFS-AG-C series)
Size: 513 kb
Pages: 3



PPFS-AG-C-2

Seedling Diseases of Corn

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



ID-230

Blackpatch of Forage Legumes: Cause of Slaframine Toxicosis or "Slobbers" in Animals

3/5/2021 (major revision)
Authors: Michelle Arnold, Shane Bogle, Bob Coleman, Ray Smith, Kiersten Wise

Blackpatch is an important fungal disease of forage legumes in Kentucky. A metabolite produced by the fungus can result in slaframine toxicosis or "slobbers" in many animals. The fungal disease was first reported in Kentucky in 1933 on red clover. Most Extension literature associates blackpatch and slaframine with red clover, which is very susceptible to the disease. However, many forage legumes including alfalfa can be infected by the causal fungus.

Departments: Animal and Food Sciences, Caldwell County, Plant and Soil Sciences, Plant Pathology, Veterinary Science
Series: Interdepartmental (ID series)
Size: 700 kb
Pages: 3



PPA-50

Drone Fungicide Applications in Corn

3/5/2021 (new)
Authors: Ricky Arnett, Pat Hardesty, Nick Roy, Kiersten Wise

Drone technology has improved in recent years and has also become more accessible. In Kentucky, commercial drone fungicide application is now an option in several areas. Drones specifically designed to apply products can potentially be used to apply fungicide in fields that are not accessible to other aircraft. This publication describes experiments to determine if drone fungicide applications can reduce foliar diseases in corn and discusses factors to consider when using drone technology to apply fungicides.

Departments: Adair County, Green County, Plant Pathology, Taylor County
Series: Plant Pathology (PPA series)
Size: 300 kb
Pages: 2



PPFS-AG-C-10

Northern Corn Leaf Blight

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



ID-268

Kentucky Grain Crop Production at a Glance

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



ID-268P

Kentucky Grain Crop Production at a Glance (poster)

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



PPFS-AG-C-9

Curvularia Leaf Spot

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



PPFS-AG-C-8

Diplodia Leaf Streak

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



ID-249

A Comprehensive Guide to Soybean Management in Kentucky

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



PPFS-AG-F-10

Possible Causes of Yellowing Alfalfa

2/16/2018 (new)
Authors: Chris Teutsch, Paul Vincelli, Kiersten Wise

During spring, several leaf spotting diseases--including Leptosphaerulina (Lepto) leaf spot and spring black stem/leaf spot--are common in alfalfa. Leaf spotting diseases result in distinct round to elongated spots that sometimes have a dark margin. Very wet weather in spring and early summer favor activity of leaf spotting diseases in first and second cuttings. Wet and humid weather during summer favor other leaf spotting and blighting diseases. All leaf spots and blights weaken plants, but alfalfa often outgrows the damage in later cuttings. Maintain a regular cutting schedule, cutting at 30- to 35-day intervals.

Departments: Plant and Soil Sciences, Plant Pathology
Series: Forage Disease: Plant Pathology Factsheet (PPFS-AG-F series)
Size: 754 kb
Pages: 4



PPFS-AG-C-7

Physoderma Brown Spot

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



PPFS-AG-C-5

Diplodia Ear Rot

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



PPFS-AG-C-6

Holcus Leaf Spot

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