(Wines&Vines) - With growing degree days tracking ahead of 2011’s abysmal performance, Washington state growers are focusing on disease pressure to limit risks to this year’s crop. Cool weather has been the norm since bud break, which was assisted by warm weather in early April, and recent rains have handed some areas up to 15% of their annual precipitation in a matter of days. Washington State University headquarters in Prosser registered an accumulation of 4.6 inches of precipitation as of June 17, versus a long-term annual average of 7.5 inches.