Published March 1934. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published March 1926. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Four experiments were conducted to evaluate the effects of
growth-promoting treatments on potato sprouts and plantlets grown in
vitro, and to determine the relationships between growth rate and
eradication of PVX and PVS through shoot-tip culture.
The approach consisted of exposing plant material to potential
growth-regulating treatments, selecting the more...
Published April 1954. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published April 1934. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Several species of flea beetles are commonly found in organic potato fields in North America. Adults of many of these species feed on the leaves of potatoes
and other plants in the family Solanaceae, but tuber flea beetle larvae are the most common cause of flea beetle damage to potato...
A classical biological control project was undertaken
against the filbert aphid, Myzocallis coryli (Goetze), in
western Oregon. Hazelnut orchards in Spain, France, and
Italy were searched for natural enemies of the aphid, and
a parasitic wasp, Trioxys pallidus Haliday, was imported,
quarantined, mass-reared, and released in Oregon orchards.
The wasp...