Site, Stand, and Host Characteristics of Southern Pine Beetle Infestations
Jack E. Coster and Janet L. Searcy - editors
Southern Pine Beetle Handbook U.S.D.A. Combined Forest Pest Research and Development Program Technical Bulletin No. 1612
In 3004 the U.S. Department of Agriculture initiated the Combined Forest Pest Research and Development Program, an interagency effort that concentrated on the Douglas-fir tussock moth in the West, on the gypsy moth in the Northeast, and on the southern pine beetle in the South. The work reported in this publication was funded in whole or in part by the Program. This technical bulletin is one in a series on the southern pine beetle.
The data summarized in this publication were used to elucidate associations between SPB outbreaks and conditions in the forest. This understanding is useful in suggesting silvicultural practices to lessen the beetle's destructive impact. The data were also used to develop hazard rating systems that the forester can use to prioritize his pine stands for silviculture preventative treatments and for surveillance treatments and for surveillance activities. Interpretations of the basic data and its uses in silviculture and in stand rating have been discussed by Hicks (1980), Belanger (1980), and Lorio (1980).
But the data may continue to have use in forest entomology for the validation and refinement of stand rating models as well as for the development of new models using new procedures in statistical ecology. The data should also be of value for some investigations in basic forest ecology and forest inventory.
To provide for future availability, the complete data set has been transferred to computer tape. The complete Coordinated Site/Stand Data file is in card image format and contains three different card types. Card types 1 and 2 describe an individual plot and card 3 describes the individual trees on the plot. The variables on each card type are:
|Card Type 1|
|Study unit||Soil characteristics|
|Azimuth||Number of pines|
|Geographic subregion||Number of hardwoods|
|Stand disturbances||Stand understory|
|Card Type 2|
|Stand age||Total number of SPB trees|
|Stand density||Total infested area|
|Average d.b.h.||Forest type|
|Smallest d.b.h.||Average bark thickness|
|Largest d.b.h.||Average radial growth|
|Card Type 3|
|Species||Height to live crown|
|Status (live or dead)||Crown class|
|Disease||Age at b.h.|
|Total height||Radial growth|
Researchers who use any of the data in publications should negotiate appropriate recognition with those who collected the data (see the Introduction).
For further information on data availability, contact:
USDA Forest Service
Staff Director, Forest Insect & Disease Management
1720 Peachtree Road, N.W.
Atlanta, GA 30367
Developed by the University of Georgia Bugwood Network in cooperation with USDA Forest Service - Forest Health Protection, USDA APHIS PPQ, Georgia Forestry Commission, Texas Forest Service
and the Pests and Diseases Image Library - Australia
Last updated August 2018
www.barkbeetles.org version 2.0