Abstract

NIELSON, D. and J. R. BAKER. 1985. Woody ornamental insect control. PNA News 31 (14):13-16.

Landscape trees and shrubs constitute a major investment and add significantly to the beauty and value of residential and commercial properties. Landscape managers need to be familiar with woody plants, their requirements for survival and vitality, and their pest problems to implement effective insect control programs. Most native trees and shrubs on undisturbed sites suffer only rarely from ravages of insect pests. However, trees growing in landscapes are commonly stressed by lack of water (or too much water if there is poor drainage), high temperatures, compacted soils, and other factors that reduce the tree’s ability to either repel or withstand insect attack without suffering decline. Most major pests of trees and shrubs are probably opportunists that exploit hosts that have been altered by their physical environment. Landscape managers can take advantage of the information in this article to develop strategies for controlling insect pests of woody plants. The information is organized according to season of insect activity. The time or times an insect is vulnerable to a direct control tactic and up-to-date insect control recommendations are provided.

• © 1986, International Society of Arboriculture. All rights reserved.