Technical reports

Air pollution injury occurs when certain air pollutants reach levels that cause health problems for plants and people…

Ozone is an air pollutant that is created by the action of sunlight on automobile and industrial exhaust, or from nat…

Algal leafspot is a common disease caused by a parasitic alga, Cephaleuros virescens. This pathogen disfigures…

View a list of short, flowering, understory trees tolerant of partial shade including Redbud, Oklahoma redbud, Chines…

Ambrosia beetles on oak and beech are a type of bark beetle/wood borer that bores into stems and branches of trees an…

American elm (Ulmus americana) is a large, grand shade tree that is adaptable to urban sites. It transplants…

American holly (Ilex opaca) is a small-growing tree or shrub that provides year-round,&n…

Anthracnose is a term applied to a group of foliage diseases that affect many deciduous tree and shrub species throug…

Aphids are a large group of small, soft-bodied insects with a modified, needle-like mouthpart (called a “stylet…

Scab is a leafspot disease that causes premature defoliation of crabapple and apple. Other species in the rose family…