Seasonal Patterns of Flight and Attack of Maple Saplings by the Ambrosia Beetle Corthylus Punctatissimus (Coleoptera: Scolytidae) in Central Michigan

Authors

Stephen W. Larsen, Ashley High School
Carol L. Howell, Alma College
Kurt J. Densmore, Ashley High School
Richard A. Roeper, Alma College

Document Type

Peer-Review Article

Abstract

Window traps with ethanol were used to observe seasonal flight patterns of Corthylus punctatissimus in central Michigan. Flights peaked in early July with a second peak seven weeks later in late August. Similarly, wilting of attacked maple (Acer) saplings began to appear a week after initial Corthylus flights, and showed twopeaks, one in mid-July and again with another peak, seven weeks later, in early September. The second peak of activity is presumably from reemerged adults, and not a second generation.

Recommended Citation

Larsen, Stephen W.; Howell, Carol L.; Densmore, Kurt J.; and Roeper, Richard A. 1994. "Seasonal Patterns of Flight and Attack of Maple Saplings by the Ambrosia Beetle Corthylus Punctatissimus (Coleoptera: Scolytidae) in Central Michigan," The Great Lakes Entomologist, vol 27 (2)
DOI: https://doi.org/10.22543/0090-0222.1847
Available at: https://scholar.valpo.edu/tgle/vol27/iss2/5