A cool spring, followed by a summer that saw only sporadic heat spikes, has shoved harvest back anywhere from two weeks to a full month, especially in the northern Willamette Valley. That opens the harvest to potentially drowning rains and botyrtis, a moldy fungus that thrives in damp, humid conditions. As a result, winemakers are doing everything they can to compensate for nature’s shortcomings – pulling leaves to expose grapes to the sun, pruning large amounts of undersized clusters to focus vine vigor on the remaining fruit and applying organic sprays touted to hasten ripening. If the Indian summer they are praying for doesn’t materialize, however, 2010 could well go down as one of those vintages best left forgotten.