United States Department of Agriculture
Conifer resin and phloem tissue contain several phytochemical groups,composed primarily of monoterpenes,diterpene acids, and stilbene phenolics. The effects of monoterpenes and phenolics on stem-colonizing bark beetles and their associated microorganisms have been studied to some extent, but the roles of diterpene acids are largely unknown. Diterpene acids are known to...
Conifer resin and phloem tissue contain several phytochemical groups, composed primarily of monoterpenes, diterpene acids, and stilbene phenolics. The effects of monoterpenes and phenolics on stem-colonizing bark beetles and their associated microorganisms have been studied to some extent, but the roles of diterpene acids are largely unknown. Diterpene acids are known...
Since the pioneering work of investigators at The Pennsylvania State University who introduced the "living filter" concept in the 196Os, numeious studies have examined the impact of wastewater irrigation upon forest communities. Some industries had undertaken wastewater recycling measures earlier (Rudolph, 1957; Little et al., 1959). but these met with...