Skip to Main Content
Differences in Monterey pine pest populations in urban and natural forestsAuthor(s): David J. Nowak; Joe R. McBride
Source: Forest Ecology and Management. 50: 133-144.
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
PDF: View PDF (682.13 KB)
DescriptionMonterey pines (Pinus radiata D. Don) planted along streets (i.e. street trees) within Carmel, California and its immediate vicinity, and naturally grown Monterey pine within adjacent native stands, were sampled with regard to intensity of visual stress characteristics, western dwarf mistletoe (Arceuthobium campylopodum f. typicum [Engelm.] Gill ), and western gall rust (Peridermium harknessii J.P. Moore) infection, and frequency of sequoia pitch moth (Synanthedon sequoiae Hy. Edw.) and red turpentine beetle (Dendroctonus valens LeConte) attacks. The street trees were stratified into four geographic zones: one highly urban zone, two urban zones, and one suburban zone. Dwarf mistletoe infections generally were more common in the forest stand than on street trees in the highly urban and urban zones for trees less than 50 cm dbh and were positively correlated with stand density. Pitch moth attacks were more common in all street tree zones than the natural forest, and were positively correlated with amount of pruning and wounding, and negatively correlated with amount of crown closure and stress. Red turpentine beetle attacks were positively correlated with stress and diameter, and may follow pitch moth attacks. More beetle attacks occurred in the two urban zones than in the natural forest, probably due to significantly more large trees in these zones, and more pruning and wounding in the street tree setting than in the forest.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, firstname.lastname@example.org if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationNowak, David J.; McBride, Joe R. 1992. Differences in Monterey pine pest populations in urban and natural forests. Forest Ecology and Management. 50: 133-144.
- Avoid planting Scotch pine near dwarf mistletoe-infected California pines
- Pruning dwarf mistletoe brooms reduces stress on Jeffrey pines, Cleveland National Forest, California
- Western dwarf mistletoe infects understory Jeffrey pine seedlings on Cleveland National Forest, California
XML: View XML