This book provides an illustrated guide to the identification and management of fungi, insects, and abiotic conditions that cause problems in Northwest bareroot conifer nurseries. A key to nursery pests offers initial guidance in identification. Separate chapters address individual pests with details on recognition, damage cycle, and management practices to...
We compared canopy arthropod assemblages among overstory conifer and understory angiosperm
species at Teakettle Experimental Forest in the Sierra Nevada in California during 1998–2000. Arthropods were
sampled from upper, middle, and lower crown levels of one overstory tree of each of the four dominant conifer
species (Jeffrey pine, sugar pine,...
The chemical composition of the boles of 14 Douglas-fir trees growing in the central Willamette Valley of western Oregon was examined to determine whether differences in various chemical component levels might help to explain arthropod or microbial colonization patterns. Levels of nearly all cations as well as N and P...