Predicting Regional Gypsy Moth (Lymantriidae) Population Trends in an Expanding Population Using Pheromone Trap Catch and Spatial Analysis

Lepidopteran Communities in Two Forest Ecosystems During the First Gypsy Moth Outbreaks in Northern Michigan

“…Gypsy moth populations began expanding through much of northern lower Michigan in the late 1980s and early 1990s (Gage et al 1990). Aerial videography maps of gypsy moth defoliation provided by the Huron-Manistee National Forest and the Michigan Department of Natural Resources indicated that no gypsy moth defoliation occurred in the stands we studied until 1993, which was consistent with our own observations during visits to this area in 1992 (D.G.M., unpublished data, HuronManistee National Forest 1992).…”

Geostatistics and Geographic Information Systems in Applied Insect Ecology

“…Several examples of GIS-based monitoring systems can be found in gypsy moth-management programs. Gage et al (27) The compilation and interpretation of spatially referenced insect and habitat data is a complex process, if for no other reason than the large size (in megabytes) of GIS coverages. Although GIS software is designed to success fully handle this complexity, these systems are often not easy to use.…”

“…The gypsy moth, Lymantria dispar, is an example of a major pest where management depends heavily on interpolating among spatially stratified samples (27,74,76). Gypsy moth egg masses are present from late summer through early spring of the following year.…”

Gypsy moth response to landscape structure differs from neutral model predictions: implications for invasion monitoring

“…Pheromone-baited traps were placed in sections 8 and 26 of every township in Michigan over 12 years from 1985 to 1996 (Gage et al 1990;Yang et al 1998). At each trap, the total annual male moth catch and the trap location in UTM coordinates were recorded.…”

“…In order to test the predictions of neutral landscape models, measurements of invasion success must be collected systematically across the entire landscape throughout the course of an invasion. One such monitoring program tracked the invasion of gypsy moths (Lymantria dispar) across Michigan (Gage et al 1990;Yang et al 1998). The gypsy moth is an exotic insect native to Europe that has caused extensive defoliation across much of the eastern United States since its introduction to Massachusetts in 1868 (Elkinton and Liebhold 1990).…”