A perusal of previous research on sugar maple borer, Glycobius speciosus, in northern New York State strongly associates severe early and late season defoliation with increased borer damage. This re-examination of earlier work suggests foliage protection may be necessary when forest management objectives are concerned with wood volume and quality.
Wink, Robert A. and Allen, Douglas C.
"Sugar Maple Borer (Coleoptera: Cerambycidae) Activity Associated With Periods of Severe Defoliation,"
The Great Lakes Entomologist: Vol. 36
, Article 2.
Available at: https://scholar.valpo.edu/tgle/vol36/iss1/2