Environmental Hazards of Mobile Ground Spraying with Cyanophos and Fenthion for Quelea Control in Senegal

摘要

Seven roosts of red-billed quelea, Quelea quelea, in the Senegal River Valley and Delta were visited during and after aerial or terrestrial treatments witheither Cyanox (cyanophos 500 g a.i. liter~(-1), five roosts) or Queletox (fenthion 640 g a.i. litter~(-1), two roosts). The primary goal of theobservations was to provide data on environmental effects of cyanophos after mobile ground spraying operations. Twenty-six species of vertebrates (birds, reptile, fish) were found dead or debilitated near the spray sites.