Browsing Journal of Range Management, Volume 35, Number 1 (January 1982) by Authors
The Persistence of Fenitrothion Insecticide In Red Maple (Acer rubrum L.) and White Birch (Betula papyfifera (Marsh.)) Deer BrowseLapierre, L. E. (Society for Range Management, 1982-01-01)From May 15 to November 15, 1977, vegetation plots were monitered on a constant basis in order to obtain the concentration of fenitrothion in red maple and white birch deer browse. The data obtained indicates that the concentrations tend to be as high as 21.413 ppm for the red maple and 19.371 ppm for the white birch immediately following the spray application. However, the concentrations are below 0.010 ppm 120 days following the application. Fenitroxon was detected in two of the samples taken from the sprayed plots. None was detected within the control plots. There is no evidence in the literature that a concentration of fenitrothion of the magnitude detected would have obvious effects on deer populations during their winter yarding.