And we expect or more growers will adopt IPM practices directly as a result of this project. Most lowbush and highbush blueberry growers in ME, NH and MA use a calendar method to determine the timing of at least 2 to 3 applications of fungicide during and post-bud break in the spring to control mummy berry disease. In August before harvest, the percentage of stems with mummy berries and the number of mummy berries per stem will be determined for 70 stems in each plot. Disease incidence and severity is proportional and so will be normalized by applying a square-root of the arc-sine transformation of the data. Growers using the MBFM will be supported by guides to the development of the fungus, plants, and disease cycle, factsheets, and information on disease risk both on the web and on a toll-free telephone line during the spring. Analysis of variance will be used to determine the effectiveness of the treatments on mummy berry disease control and yield. In June, the incidence and severity of mummy berry blight and will be determined for 70 stems along a transect through the middle of each plot. Mummy berry disease, caused by the fungus Monilinia vaccinii-corymbosi, is a serious disease in all blueberry species grown in North America. We will use workshops, scouting meetings and presentations to introduce and train growers on how to implement the MBFM in their fields.
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