Topics included new exotic species, mosquitoes, pollinators, carpenter ants, etc.
Monthly Archives: June 2015
The Conversation: Why we still collect butterflies
This is a nicely written and very informative article on the importance of collecting.
https://theconversation.com/why-we-still-collect-butterflies-41485
Defoliation of spruce by aphids around Kachemak Bay
Aphids from spruce at the Homer Bench, 12.June.2015. Photo courtesy of Karin Sonnen (USDA NRCS, Homer).
Mitch Michaud (USDA NRCS, Kenai), phoned me regarding substantial defoliation of spruce at Halibut Cove and the Homer bench. At Halibut Cove, spruces had been dropping many needles.
Aphids were the culprit, but the identity of the aphids has not yet been established.
Browning spruce needles due to aphid infestation, 9.June.2015.
Browning of spruce needles.
Spruce trees damaged by aphids, 9.June.2015.
Alder (Alnus incana tenuifolia) mortality agent complex effects on riparian zone habitat
Distribution of alder dieback mapped during 2011 Aerial Detection Survey.
The report including this chapter was published in May 2015.
Citation:
Kruse J.J., L. Winton, N. Lisuzzo, G. Adams, K. Zogas, and S. Swenson. 2015. Alder (Alnus incana tenuifolia) mortality agent complex effects on riparian zone habitat. pp. 187-195 in Potter, K. M. and B.L. Conkling, eds. Forest health monitoring: national status, trends, and analysis 2013. General Technical Report SRS-207. U.S. Department of Agriculture Forest Service, Southern Research Station, Asheville North Carolina. http://www.srs.fs.usda.gov/pubs/48361