Cooperative Extension: Maine Wild Blueberries

5.09.13 Mummy Berry Forecast, May 9

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There has been an infection period overnight in all monitored fields.  The infection period started around 6:00 to 9:00 p.m. depending upon the location.  Mature mummy berry cups are still present in most fields but are starting to die off.

Rain is predicted through the weekend and I expect more infection periods with this rain.  Plants are starting to come into bloom, so you may want to consider if you have bees in your field when you choose which fungicide to apply.

• Recommendations for fungicides to control mummy berry disease: Fact Sheet 219 – Disease Control Guide for Wild Blueberries

If you have applied fungicide on or after Monday, April 29, your plants were protected during the infection period last night.  If you have not applied fungicides, you have until Saturday, May 11 at 6:00 to 9:00 p.m. (depending upon the field) to apply fungicides to kill any infection. These fungicide recommendations are for the last infection period, you should consider if your plants will be protected for future possible infections in the rest of this week.

Any questions, please contact Seanna Annis at sannis@maine.edu, or 581.2621.