Archive for the ‘Borers’ Category

Chinese Fringetree Is Versatile Landscape Tree

Chinese fringetree (Chionanthus retusus) is native to China, Korea and Japan (Zone: 6 to 9a). Related to native U.S. species (C. virginicus), fringetrees are noted for their profuse spring bloom of fragrant white flowers. It is most often seen in cultivation as a large, multi-stemmed, deciduous shrub growing to 15 – 20 feet tall with a […]

Korean Maple Substitute For Fullmoon Japanese Maple

At first sight Korean maple (Acer pseudosieboldianum), aka Korean fullmoon maple, is very similar in appearance to fullmoon Japanese maples (A. japonicum var. Acontifolium). If you live in a northern U.S. such as the upper Midwest, growing Japanese maples will likely become an unfulfilled wish. Korean maple is a hardier choice for northern locales (USDA hardiness zones 4-8). […]

Pest Alert: Update On Emerald Ash Borer

Across the U.S. and Canada, ash trees are dying from infestations of Emerald Ash Borer (EAB), an Asian insect pest. In many U.S. cities, ash (Fraxinus) is a major urban tree genus. Since 2002 EAB has become a serious pest that has killed more than 40 million ash trees in 18 states. This hardwood tree is important to […]