Effect of seasonal placement ofCotesia melanoscela (Hym.: Braconidae) on its potential for effective augmentative release againstLymantria dispar (Lep.: Lymantriidae) - A. M. Wieber; R. E. Webb; R. L. Ridgway; K. W. Thorpe; R. C. Reardon; D. M. Kolodny-Hirsch; K. M. Tatman (BioControl, 1995)