When American beech (Fagus grandifolia Ehrh.), striped maple (Acer pensylvanicum L.), and hobblebush (Viburnum alnifolium Marsh.) become dense in the understory they interfere with regeneration of other species. This review identifies threshold levels that causeproblems in regenerating desirable hardwoods in northeastern North America, and summarizes methods for controlling the interference in conjunction with a reproduction method cutting. It also forwards some ideas about management based on information in published sources.
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Nyland et al. (2006) studied this question.