Response of Foliage of Young Loblolly Pine to Woody and Herbaceous Plant Control
Woody and herbaceous weeds have been shown to have a significant negative impact on survival and/or growth of planted loblolly pine (Pinus fueae L.) in the southeastern United States (Nelson et al. 1981, Zutter et al. 1986. Bacon and Zedaker 1987, Miller et al. 1987, 1991). Most research studies have focttsed on the effects of controlling only herbaceous, only woody, or boih herbaceous and woody components. As a result, our understanding of how woody and herbaceous plants may interact to influence the response of loblolly pine is limited. In the early 1980’s the Competition Omission Monitoring Project (COMP) was developed, in part, to compare the relative effects of woody and herbaceous plants and their interaction on the response of loblolly pine across a wide range of sites in the southeastern United States.