2001. Herbicide effects on host plants of Karner blue butterfly and on butterfly development from egg to adult

Singsaas, Patrick Shannon, Sash Deprez, and Curt Meehl measured them. Curtis Meehl conducted the egg study. Dr. Cynthia Lane provided both scientific and editorial guidance in the egg development study. This report has benefitted from complete reviews by Dr. T. Bentley Wigley of Clemson University, and Dr. Kitt Hart of The Timber Company. The authors and field personnel were employees of the University of Minnesota. ii Two studies examined the compatibility between herbicide release of red or jack pine plantations in Wisconsin and the maintenance of Karner blue butterfly (Lycaeides melissa samuelis), a federally listed endangered species. Wisconsin has some of the few remaining viable metapopulations of Karner blue butterfly, hereafter abbreviated as KBB. The habitats favored by KBB are also the sites well suited for the red pine (Pinus resinosa)and jack pine (Pinus banksiana) plantations that supply the socioeconomically important forest industries. Th