Two invasive ambrosia beetle species are serious pests in nursery and landscape trees and shrubs: granulate ambrosia beetle (Figure 1), and black stem borer (Figure 2). Ambrosia beetles are about 2 to 4 mm in length and spend most of…
Two invasive ambrosia beetle species are serious pests in nursery and landscape trees and shrubs: granulate ambrosia beetle (Figure 1), and black stem borer (Figure 2). Ambrosia beetles are about 2 to 4 mm in length and spend most of…
Bald cypress, a deciduous conifer, sheds its needle-like leaves in early fall after the foliage turns tan, cinnamon, and deep orange. We noticed fall-colored needles in bald cypress trees grown in a nursery in western Kentucky last May (Figures 1…
Recent rainy weather in Kentucky has favored black root rot disease development. Black root rot can affect a wide range of ornamentals in home and commercial landscapes, nurseries, and greenhouses. Black root rot is commonly observed on Japanese and blue…
Ambrosia Beetle Complex Ambrosia beetles (Coleoptera: Curculionidae: Scolytinae) represent a large number of native and exotic species that live in association with Ambrosia fungi. Ambrosia fungi digest wood and provide nourishment to adult beetles and larvae. The beetles are the…