Cooperative Extension: Maine Wild Blueberries

5.14.12 Mummy Berry Forecast: Monday, May 14

Print

By Seanna Annis

Hancock and Washington Counties

Some fields have had infection periods over the weekend. Most sites except those close to the coast had infection periods over Sunday night through Monday.  Two fields, Montegail Pond (Township 19) and Meddybemps had infection periods over Saturday night into Sunday and Sunday night into Monday.

Unfortunately, there are still mature mummy berry cups producing spores in fields in these areas.  Your plants are also susceptible all through their development stages, even when the leaves or flowers are opened.

Rain is predicted to occur from Monday night through Thursday morning and I expect the cups will last through this period. We will get more infection periods with this coming rain.

Using seven days of protection for the fungicides, if you applied fungicide on or after Thursday, May 10,  your plants will be protected from the infection periods of this past weekend and those into this week.

Using ten days of protection for the fungicides, if you applied fungicide on or after Monday, May 7,  your plants will be protected from the infection periods of this past weekend and those into this week.

The timing of the last infection periods this weekend were: