Apple scab infection April 3-4

At our AREC in Winchester, we recorded our third apple scab infection period in eight days April 3-4: 15 hr wet at 52 to 63° with 0.03 inches of rain. This was also a possible rust infection period. Red Delicious, Gala, and Idared fruit buds are now at open cluster stage, but Golden Delicious and Rome Beauty are still at tight cluster.