Black root rot can affect a wide range of ornamentals in home and commercial landscapes, nurseries, and greenhouses. In Kentucky, this disease is commonly observed on Japanese and blue hollies, inkberry, pansy, petunia, and vinca. In addition to ornamentals, numerous…

Black rot is the most prevalent and one of the most important grape diseases in Kentucky. While this disease can affect all young developing plant tissues above ground, fruit infections are the most destructive. Without an adequate disease management program,…

Spruce trees, particularly blue spruce (Picea pungens) and Norway spruce (Picea abies), are popular landscape trees in Kentucky. Unfortunately, they can present problems for homeowners when they show evidence of poor vigor, dieback, or needle drop.  This publication discusses the…

Volutella blight (also called Pseudonectria canker) is the most common disease of boxwood in Kentucky landscapes and nurseries.   This disease is caused by an opportunistic fungal pathogen that attacks leaves and stems of damaged or stressed plants. This Plant Pathology…

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 these beautiful trees in both residential and commercial settings. This publication covers the most common…

Peach leaf curl occurs annually in commercial and residential orchards throughout Kentucky.  The disease causes severe defoliation, weakens trees, and reduces fruit quality, fruit set, and yield.  Peaches, apricots, and nectarines are susceptible to peach leaf curl.  Plum pockets is…

Backyard stone fruit (peach, cherry, plum) production requires a proactive approach to disease, insect, and weed management. Preventative management practices can help minimize pesticide use in home orchard settings.  This publication presents recommended cultural practices, along with chemical management strategies,…