Blog Archives

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

Jumping Oak Gall

Jumping oak galls, made by tiny non-stinging wasps, can cause white oak leaves to turn brown and drop prematurely (Figure 1). The brown to black spots on leaves are discolorations that galls create on upper leaf surfaces. Tiny button-shaped galls

Posted in Forest Trees, Landscape Trees & Shrubs

Dogwood Anthracnose Spotted

Anthracnose of dogwood is a common problem in Kentucky. Symptoms on landscape and forest dogwoods often first appear during wet periods in late spring. If left unmanaged, the pathogen spreads, eventually resulting in plant death.  Selection of resistant varieties and

Posted in Forest Trees, Landscape Trees & Shrubs

Emerald Ash Borer Detections and Treatment Horizon

Abe Nielsen, Kentucky Division of Forestry Forest Health Specialist, reported first detections of emerald ash borer infested trees at locations in Clinton, Cumberland, and Wayne counties. The map (Figure 1) shows the extent of the known infestation. Is Preventive Treatment

Posted in Forest Trees, Landscape Trees & Shrubs

Recognizing the “In-line Borer”

One of the more curious signs on a tree is one or more rows of regular, shallow holes on the trunk. Usually, this is the work of the yellow-bellied sapsucker, a member of the woodpecker family. The sap that wells

Posted in Forest Trees, Landscape Trees & Shrubs

Emerald Ash Borer Outlook for 2017

Since its discovery in 2009, the emerald ash borer (EAB) has spread dramatically (Figure 1) within the Commonwealth. This spread will continue through short-range dispersal flights of the insect and long distance transport of infested wood, primarily firewood. Naturally, those

Posted in Forest Trees, Landscape Trees & Shrubs

Sawflies- Late Season Pine Defoliators

Sawflies are members of the insect order Hymenoptera that includes ants, bees, and wasps. The larval stage has a caterpillar-like body that may be brightly marked with stripes or spots. Some species change significantly in appearance as they grow, making

Posted in Forest Trees, Landscape Trees & Shrubs