@ARTICLE {HANNA:2003a, title = {Effects of cover crop and spider predation on population dynamics of Erythroneura variabilis in a raisin vineyard}, author = {Hanna, R. and Zalom, F. and Roltsch, W. }, journal = {Entomologia Experimentalis et Applicata}, year = {2003}, volume = {107}, pages = {177--192}, }