Index Catalog // ScholarsArchive@OSU

Creator:: Ellertson, Floyd Elroy
Resource Type:: Dissertation
Full Text:: SPP . • AS&OCI •D ~ ITH FRU!'I' TREES IN ' iASCO AND HOOD RIVER COU:NTII:~. S by FLOYD ELROY

Creator:: Jorgensen, Clive Darrel
Abstract:: The ecological interrelationships of mites occurring in and near the Hood River Valley, Oregon, pome fruit orchards were investigated to determine the possibility of an integrated control program using the species already present. Survey sampling methods were used to study mites on wild hosts (Crataegus douglasii Lindl., Crataegus columbiana Howell,...
Resource Type:: Dissertation
Full Text:: . Mellenthin, Superintendent and Floyd E. Ellerteon, Assistant Entomologist at the Mid- Columbia Branch

Creator:: Hendrickson, William Henry
Abstract:: Factors considered were phloem moisture, sour-phloem (which may be furthered by the presence of ample phloem moisture), oleoresin of the host, and the presence of unmated female beetles in suitable host material. Levels of phloem moisture present in variously prepared logs in the field ranged from about 100 to upwards...
Resource Type:: Dissertation
Full Text:: is indebted to Dr. Floyd Harrison of the University of Maryland and Miss Nina K. Shifflette, retired

Creator:: Schwartz, Michael David
Abstract:: The black grass bug genus Irbisia Reuter was revised. Over 18,000 specimens were examined and information concerning the biology, host plant and distributional relationships of the species was compiled. In addition to external characters, the male claspers and vesica, and the female dorsal libiate plate of the bursa copulatrix and...
Resource Type:: Masters Thesis
Full Text:: , Canada, (UALB), Dr. George E. Ball; University of Arizona, Tucson, (UAZ), Dr. Floyd G. Werner

ScholarsArchive@OSU