| yield reduction in brassica napus, b. rapa, b. juncea, and sinapis alba caused by flea beetle (phyllotreta cruciferae (goeze) (coleoptera: chrysomelidae)) infestation in northern idaho. | phyllotreta cruciferae is an important insect pest of spring-planted brassica crops, especially during the seedling stage. to determine the effect of early season p. cruciferae infestation on seed yield, 10 genotypes from each of two canola species (brassica napus l. and brassica rapa l.) and two mustard species (brassica juncea l. and sinapis alba l.) were grown in 2 yr under three different p. cruciferae treatments: (1) no insecticide control; (2) foliar applications of endosulfan; and (3) car ... | 2004 | 15568354 |