ABSTRACT

Anonymous. 1976. Detecting/controlling tree diseases and pests: oaks. Grounds Maintenance 11(10): 32, 34, 38, 42, 44, 46.

The oaks constitute one of the world’s most important and dependable groups of trees, both as timber trees and as ornamentals. More than 40 species of oak are listed as being commercially grown and offered for sale in the United States. Such pests as twig girdlers, borers, oak gall insects, and various leaf diseases prey on the oaks. In addition, oak wilt is a widespread and serious threat to black and red oaks in the north central United States. Other insect pests and diseases common to the oaks are discussed in this article along with their causes and controls. Tables 1 and 2 provide spray programs which might be utilized in serious cases.