Wednesday, August 22, 2012

Extended wetting and summer disease pressure

Nine hours of extended wetting occurred with an 0.06 inch of rain at 69° Aug 14. We also had several nights of heavy dews last week, bringing the accumulated wetting hour total from rainfall or dew since Apr 18 to 835 hours. This total, generally indicative of sooty blotch and flyspeck pressure, is the highest for this time last year since 2003.

Bitter rot and some other rots have appeared on poorly protected apple fruit that were damaged by hail on July 31.