Two weeks ago, I reported in KPN about a suspected western bean cutworm egg mass that was collected by a field scout in Owensboro. This large egg mass was located on the upper leaf surface of the upper leaf of corn.…
Cucurbit Downy Mildew Fungicide Sensitivity Research and Extension Project
Cucurbit downy mildew is the most economically important disease of cucurbits in Kentucky. All cucurbits, such as cucumber, cantaloupe, summer and winter squashes, pumpkin, and watermelon are susceptible to this water mold (fungal-like organism/oomycete) pathogen (Figure 1). Since cucurbit downy…
Posted in Vegetables
Vegetable Diseases to Scout for: Cucurbit Powdery Mildew
Early reports of powdery mildew on cucurbit crops are beginning to come in from Kentucky locations this week, so systemic fungicides should be incorporated into spray programs now for most effective disease management. Powdery mildew is a common disease of…
Posted in Vegetables
Boxwood Blight Threatens Kentucky Shrubs
Boxwood blight has been detected in Kentucky again this year. The disease can be devastating to American boxwood cultivars, which are common in the Kentucky landscape. Complete defoliation can occur within a week and plants can die within a single…
Posted in Landscape Trees & Shrubs
Dogwood Powdery Mildew
Dogwood is a popular landscape tree throughout Kentucky. However, once infected with powdery mildew, trees can develop an unattractive appearance. The disease is most prevalent during periods of high humidity and in landscapes with reduced air circulation. Some cultivars are…
Posted in Landscape Trees & Shrubs
Black Locust Brown?
In some areas of the state, black locust trees have taken on a brown color (Figure 1). This is due to activity of locust leafminer, which results in trees that appear scorched. The adults feed on lower leaf surfaces while…
Posted in Forest Trees, Landscape Trees & Shrubs
Kissing Bugs
A recent rash of calls and pictures of kissing bugs from various counties indicate that this insect is active. The eastern conenose bug is a species of kissing bug that lives throughout Kentucky. These insects can be found in or…
Posted in Human Pests
