Flowering Dogwood Diseases (PPFS-OR-W-06) The flowering dogwood (Cornus florida) is one of the most popular ornamental trees in Kentucky landscapes. Unfortunately, some common diseases can threaten the health of dogwood in both residential and commercial settings. This publication covers spot…
Plant Disease Diagnostic Lab Highlights
The following plant disease highlights from the University of Kentucky Plant Disease Diagnostic Laboratories represent recent sample submissions from field crops, fruit, vegetables, and ornamentals. Diagnostic samples of agronomic crops from the past week have included Lepto leaf spot and…
Posted in Plant Disease Diagnostic Lab
2017 Insect Trap Counts
Trap counts for major insect pests are provided by the Kentucky IPM Program. Traps are located at the UK Research and Education Center in western Kentucky and the UK Spindletop Farm in Lexington. Below are trap counts for the current…
Posted in Insect Trap Counts
Sugarcane Aphid: Occurrence in August 2017, Misidentification, and Insecticides Registered for Grain, Forage and Sweet Sorghum
Occurrence Although the sugarcane aphid (Melanaphis sacchari) was not a serious problem in Texas, Kansas, or other states in 2017; its occurrence in Kentucky appears to be problematic due to the high numbers being observed in sweet and forage sorghum…
Posted in Grains
Spike of Southwestern Corn Borer Might Need Attention in Corn Fields in Western Kentucky
Pest Description Southwestern corn borer (SWCB) (Diatraea grandiosella) was a caterpillar regarded as one of the most serious insect pests of corn in the late 1970s. Since then, it has sporadic appearances; however, it is more difficult to control than…
Posted in Grains
Bacterial Leaf Scorch Can Torch Landscape Trees
Kentucky’s landscapes are populated by many trees that are susceptible to bacterial leaf scorch. This disease may not kill trees instantly, but over time, it can have devastating effects. Pruning and reducing stress can prolong the life of infected trees;…
Posted in Landscape Trees & Shrubs
Lace Bugs Make “Ghost Leaves”
Lace bugs use their sucking mouthparts to feed on plant sap. Damage ranges from scattered small white spots to complete bleaching of leaves. Some species feed on many different types of plants while others feed only on a narrow range…
Posted in Landscape Trees & Shrubs
