Blog Archives

Landscape Sanitation: Clean Up for Clean Plants

Autumn has arrived in Kentucky and, as leaves will soon begin to change color and fall from trees, it is time to focus on landscape sanitation. Good sanitation practices can help reduce disease-causing pathogens.  These organisms can survive for months

Posted in Landscape Trees & Shrubs, Landscapes, Ornamentals

Tree Wounds – Invitations to Wood Decay Fungi

Wood decay leads to loss of tree vigor and vitality, resulting in decline, dieback, and structural failure. Wounds play an important part in this process since they are the primary point of entry for wood decay pathogens. While other factors

Posted in Landscape Trees & Shrubs

How Dry Seasons Affect Woody Plants

Water is an essential component to plant mass and is vital to growth, carbohydrate production, and nutrient transport. During periods of below-average rainfall or when rain distribution is uneven, plant health may decline (Figure 1). Drought conditions or inadequate water

Posted in Landscape Trees & Shrubs

Stress and Decline in Woody Plants

Woody trees and shrubs may exhibit decline resulting from the stresses that can occur during their lives. Stress may be the result of improper plant or site selection, incorrect planting or maintenance practices, or poor soil conditions. Injury from equipment,

Posted in Landscape Trees & Shrubs

Rose Rosette Disease: A Threat to Kentucky Roses

Rose rosette is a devastating viral disease that is a threat to roses, including rose cultivars known for their exceptional disease resistance and cold hardiness. Symptoms can vary greatly, depending upon cultivar, plant age, and growing conditions.  Symptoms are often

Posted in Landscape Trees & Shrubs

Rhizosphaera Needle Cast May Lead to Skimpy Spruce

Rhizosphaera needle cast is often to blame for brown or thin spruce in the landscape. In Kentucky, Rhizosphaera needle cast is the most common disease of spruce; it also affects some pine species. This disease causes needle drop on lower

Posted in Landscape Trees & Shrubs

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