CHEMICAL CONTROL OF WEEDS IN LINING-OUT STOCK

The following herbicides were used in attempts to control weeds in lining-out stock of 16 species of trees and shrubs: simazine, neburon, endothal, CIPC, DNBP and 2, 4-D. Only simazine and neburon produced a significant reduction in weed crops. In further studies on simazine applications of 3 and 4 pounds per acre of the wettable-powder formulation provided good control. The granular formulation of simazine did not produce a significant reduction in either the number of species or crops of weeds. Variation in survival of nursery stock was more closely related to the individual species of trees and shrubs than to the formulations or rates of application of simazine.