August 18, 2019
Salem-News.com Western Tent Caterpillars articles
Salem-News.com (Jun-19-2014 19:54)
Parts of Oregon Inundated by Western Tent CaterpillarsSalem-News.com Staff
Western tent caterpillars produce one generation per year.
(SCAPPOOSE, Ore. ) -
Oregon State University Extension offices in Columbia County are being inundated with calls by concerned members of the public about localized, often severe, defoliation of hardwoods in the northern portion of the county.