Blog Archives

Diagnosis of “No Disease”

Extension agents and growers may occasionally receive diagnostic reports from the University of Kentucky Plant Disease Diagnostic Laboratory that indicate, “no disease was found.”  This may result from an insufficient sample and/or that the plant problem does not result from

Posted in Plant Disease Diagnostic Lab

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights have been compiled from samples submitted to the University of Kentucky Plant Disease Diagnostic Laboratories from August 1 to August 17, 2020. Diagnostic samples of agronomic crops have included Rhizoctonia root and crown rot, Rhizoctonia

Posted in Plant Disease Diagnostic Lab

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights have been compiled from samples submitted to the University of Kentucky Plant Disease Diagnostic Laboratories from August 1 to August 17, 2020. Diagnostic samples of agronomic crops have included Rhizoctonia web blight, summer black stem

Posted in Plant Disease Diagnostic Lab

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights have been compiled from samples submitted to the University of Kentucky Plant Disease Diagnostic Laboratories from July 15 to July 31, 2020. Diagnostic samples of agronomic crops have included Rhizoctonia crown rot, summer black stem

Posted in Plant Disease Diagnostic Lab

Plant Disease Diagnostic Lab Operations Update

The University of Kentucky Extension Plant Pathology Team would like to provide the following updated guidelines for managing Plant Disease Diagnostic Lab operations during COVID-19 and the re-opening phases in Kentucky. Lexington PDDL Laboratory Until further notice, operations of the

Posted in Announcements, Plant Disease Diagnostic Lab

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights have been compiled from samples submitted to the University of Kentucky Plant Disease Diagnostic Laboratories from July 1 to July 14, 2020. Diagnostic samples of agronomic crops have included Rhizoctonia crown rot, Lepto leaf spot,

Posted in Plant Disease Diagnostic Lab

How NOT to Submit Plant Samples for Diagnosis

Spring brings with it fresh, new plant growth and gardeners filled with enthusiasm. However, when landscape or garden plants begin to show symptoms of a problem, or when commercial crops start to decline, the two questions from home gardeners’ and

Posted in Plant Disease Diagnostic Lab

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights have been compiled from samples submitted to the University of Kentucky Plant Disease Diagnostic Laboratories from June 1 to June 30, 2020. Diagnostic samples of agronomic crops have included Rhizoctonia damping off, Lepto leaf spot,

Posted in Plant Disease Diagnostic Lab

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights have been compiled from samples submitted to the University of Kentucky Plant Disease Diagnostic Laboratories from May 1- June 1, 2020. Diagnostic samples of agronomic crops have included Rhizoctonia damping off on alfalfa; Pythium and

Posted in Plant Disease Diagnostic Lab

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights have been compiled from samples submitted to the University of Kentucky Plant Disease Diagnostic Laboratories from February 1 to February 25, 2020. Diagnostic samples of agronomic crops have included russet mite on hemp. On fruit,

Posted in Plant Disease Diagnostic Lab

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights have been compiled from samples submitted to the University of Kentucky Plant Disease Diagnostic Laboratories from October 1 to October 29, 2019. Diagnostic samples of agronomic crops have included soybean stem borer on soybean; Pythium

Posted in Plant Disease Diagnostic Lab

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights have been compiled from samples submitted to the University of Kentucky Plant Disease Diagnostic Laboratories from September 1-17, 2019. Diagnostic samples of agronomic crops have included summer black stem/leaf spot and anthracnose on alfalfa; Diplodia

Posted in Plant Disease Diagnostic Lab

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights have been compiled from samples submitted to the University of Kentucky Plant Disease Diagnostic Laboratories from July 30 – August 20, 2019. Diagnostic samples of agronomic crops have included common rust, southern rust, Diplodia leaf

Posted in Plant Disease Diagnostic Lab

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights have been compiled from samples submitted to the University of Kentucky Plant Disease Diagnostic Laboratories from July 2-8, 2019. Diagnostic samples of agronomic crops have included common rust, southern rust, Diplodia leaf streak, gray leaf

Posted in Plant Disease Diagnostic Lab

Plant Disease Diagnostic Lab Highlights

The following plant disease highlights have been compiled from samples submitted to the University of Kentucky Plant Disease Diagnostic Laboratories from July 2-8, 2019. Diagnostic samples of agronomic crops have included common rust, southern rust, northern leaf blight, Diplodia leaf

Posted in Plant Disease Diagnostic Lab