In 2005 they used Jerusalem Artichoke (Helianthus tuberosus), different plants. Later they again switched to Goldenrod (Solidago), as in the previous year. Photo cropped to show only a small part - about 75 wasps settled on the plant for the night.
Contributed by Jackie on 11 April, 2006 - 8:23am Last updated 14 February, 2008 - 8:19pm
Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.