Blog Archives

Vegetable Diseases to Scout for: Tomato Spotted Wilt Virus

Tomato spotted wilt virus (TSWV) has caused more problems than usual this year, particularly in high tunnel tomato. This disease can affect tomato, pepper, potato, eggplant, lettuce, beans, and cucumber along with more than 170 other plant species. TSWV may

Posted in Vegetables

Cane Blight of Brambles

Cane blight occasionally impacts homegrown and commercial raspberries and blackberries in Kentucky. Recent rain events have resulted in a wet growing season, which favors the development of cane blight. The disease causes lesions to develop on both primocanes (current-year canes)

Posted in Fruit

Spotted Wing Drosophila Activity Intensifying

Samples this past week indicate that spotted wing drosophila (SWD) activity is increasing across the state with numbers of these captured insects considerably higher at some locations. While the threshold to begin management is ‘one captured fly,’ continued trapping provides

Posted in Fruit

New County Reports of Emerald Ash Borer

Since its discovery in 2009, emerald ash borer (EAB) has continued to invade Kentucky (Figure 1); Cumberland, Green, Taylor, and Wayne counties have been added to the list of counties this year. Designation as “infested” does not mean the insect

Posted in Forest Trees, Landscape Trees & Shrubs

Japanese Beetles Abundant in Some Areas

Japanese beetles are emerging, and there are early indications that populations are well above normal in some areas. Upcoming rain will soften the soil and spur more emergence. When practical, hand removal is an effective way to control this insect

Posted in Landscape Trees & Shrubs, Landscapes

Time to Check for Bagworms

Small bagworms are feeding now. It takes careful inspection to detect small larvae wrapped in silk bags with pieces of leaf attached (Figure 1). Check small trees and shrubs that have a history of problems to see if the insects

Posted in Landscape Trees & Shrubs

Leaf Skeletonizers on Oaks

Leaf skeletonizers are pale yellow-green caterpillars that create veiny skeletons as they feed on upper leaf surfaces (Figure 1). There are several leaf skeletonizer species that feed on different tree species, but their activity is rarely noticed. Usually, weather or

Posted in Landscape Trees & Shrubs