Studies on a growth factor in lettuce, Lactuca sativa var. romana Hort., required by the grasshoppers Melanoplus bilituratus (Wlk.) and M. bivittatus (Say)

Kreasky, Joseph Bernard2015-05-122015-05-121960https://scholarworks.montana.edu/handle/1/4410enGrowthLettuceLocustsStudies on a growth factor in lettuce, Lactuca sativa var. romana Hort., required by the grasshoppers Melanoplus bilituratus (Wlk.) and M. bivittatus (Say)DissertationCopyright 1960 by Joseph Bernard Kreasky