During the summer of 1965, the fungus Spicaria rileyi was frequently associated with dead Pseudoplusia includens larvae on various crops in southeastern Alabama. Since this insect, sometimes referred to as the false looper, has become of increasing economic importance in Alabama (Canerday, J. Econ. Entomol., in press, 1966), the pathogenicity and potential control value of S. rileyi for P. k&de...