Can malathion be used as a larvicide?
Under certain limited conditions some formulations of malathion may be used as a larvicide. It may be applied to intermittently flooded areas, stagnant water, and temporary rain pools. Malathion may not be applied to any fish-bearing waters. Updated Monday, July 28, 2003. This information is provided by CSU Cooperative Extension Colorado State University Cooperative Extension. 1995-2003. Contact Cooperative Extension Web Manager. Home Page: www.ext.colostate.edu.