Cooperative Extension: Maine Wild Blueberries

Midcoast There was another infection event from Monday, May 8 overnight to Tuesday, May 9. There are reports of mature cups but also cups dying off.  I am hoping we are nearing the end of the mummy berry season for this area. Please let me know when your mummy berry cups are dead or dying […]

Midcoast and Downeast There was another infection event overnight from Sunday, May 7 to Monday, May 8 morning.  There are still cups present in all areas that have reported in so I suspect most fields had a mummy berry infection event if you have had the disease in your field in the past. I am […]

Midcoast and Downeast As you probably guessed with this wet weather we have had another infection period for mummy berry.  The wet weather started, as recorded in areas with weather stations, in the late afternoon to early evening on Friday and continued until Sunday morning.  There were still reports of cups and some new pinheads […]

All regions of blueberries have experienced infection periods starting in the evening of April 30 to the morning of May 3.  It has varied by weather station location on whether this has been one long event or a series of infection periods.  There are reports of pinheads and cups in the midcoast regions and in […]

Midcoast Region: Waldo, Knox and Lincoln Counties There were two infection events from Thursday night through Friday and Friday night through to Saturday and now a new one has probably started today, Monday. There were infection events reported at all four weather stations (Waldoboro, West Rockport, Appleton, and Searsport).  Plants are susceptible and there are […]

Knox, Lincoln and Hancock Counties All grower reports early this week were that there were mummy berry cups in fields in these regions and the plants were far enough along or close to it for infection. The steady wet weather produced an infection event recorded at all of our weather stations in those regions (Waldoboro, […]

Waldo, Knox, and Lincoln Counties As mentioned on Friday, some fields had suitable levels of F2 flower buds to see mummy berry infection over this weekend, but there were no cups reported in most fields. Only one field reported one cup. If you have a very early field in the midcoast region and had more […]

I have reports of mummy berry plots showing pinheads in multiple fields in the Midcoast region (Liberty, Appleton, West Rockport), and in Ellsworth, Hancock, and Jonesboro, Washington counties.  Pinheads are the stage before the cups appear. We have one report of a single cup in West Rockport.  In fields we checked yesterday, plants in West […]

With the warm weather these last few days, mummy berry season will be starting soon. Flower and leaf buds have started to swell in fields in the midcoast and Downeast regions. In the midcoast region,  we have seen a few clones with the opened flower or leaf bud scales. We have our weather stations up […]

Now is the time to collect mummy berries to put out your own plot.  It is easy to set out plots and it will provide you with valuable information in the spring on when the fungus is active in your field.  You will need to look at the plot in the spring about 2 times […]