Diseases of Economic Crops In Alaska

Inspection and control of imported plant materials will assist in preventing diseases from entering Alaska.General -- Methods of control -- Barley -- Oats -- Wheat -- Forage -- Potatoes: Blackleg, gianthill, haywire, late blight, leak, mild mosaic, Rhizoctania, ring rot, rugose mosaic, soft rot, storage rots, scab, witches' broom -- Cabbage -- Carrots -- Cucumber -- Lettuce -- Radishes -- Tomatoes -- Raspberries -- Strawberrie

Late Winter Foraging by Honeybees (Hymenoptera: Apidae) at Sapsucker Drill Holes

Observations of Apis mellifera foraging at sapsucker drill holes were made during February 1988 in southwestern Virginia. Foraging bouts were dependent upon temperature; more bees visited drill holes when ambient temperatures exceeded 10oC. Honeybees did not feed directly at drill holes but collected congealed sap from bark surfaces