Spatial Distribution of the Nantucket Pine Tip Moth (Lepidoptera: Tortricidae) in Newly Established Loblolly Pine Plantations
The spatial distribution of trees infested by the Nantucket pine tip moth, Rhyacionia frustrana (Comstock), was examined using random 36 tree samples taken from contiguous quadrats in eight loblolly pine plantations in their first and second year of growth in southwestern Arkansas. Infestations were distributed throughout first-year plantations by the end of the second tip moth generation. The distribution of infested trees was generally random in the first generation, with increasing aggregation in subsequent generations. Factors such as vegetation level may alter this pattern.
Contributor Notes
2Present Address: USDA, Forest Service, Green St., Athens, GA 30602.
3Department of Mathematical Sciences, University of Arkansas.