PT - JOURNAL ARTICLE AU - Nielsen, David G. TI - Evaluation of Biorational Pesticides for use in Arboriculture AID - 10.48044/jauf.1990.022 DP - 1990 Apr 01 TA - Arboriculture & Urban Forestry (AUF) PG - 82--88 VI - 16 IP - 4 4099 - http://auf.isa-arbor.com/content/16/4/82.short 4100 - http://auf.isa-arbor.com/content/16/4/82.full SO - JOA1990 Apr 01; 16 AB - Pest control in urban and community forests is undergoing rapid change in Canada and The United States of America. Anyone who has been involved in pest control during the past 20 years realizes that the rules for pesticide use and their availability have been and are changing. Improved ability to detect minute amounts of pesticide residue, environmental awareness and activism, and increased demand for higher quality landscapes require creativity in terms of pest control approaches and products. Impending legislation and changing consumer attitudes mandate reduction in use of conventional pesticides in landscape maintenance. Biorational insecticides and acaricides, including horticultural oils, insecticidal soaps, bacterial preparations, and entomogeneous nematodes are under increasing development and are being used more widely in arboriculture. Results of investigations with some of these biorational products against important pests of trees and shrubs are reported.