Cooperative Extension: Maine Wild Blueberries

Knox and Waldo Counties There was an infection period recorded at our weather station in West Rockport (Knox County) from Sunday, May 5 at 9:00 p.m. to Monday, May 6 at 8:40 a.m.  The recording at our Appleton weather station showed temperatures that were too cool for an infection period to have occurred. If you […]

Mature mummy berry cups have been found in most blueberry areas. Some fields have their first batches of mummy berry cups starting to dry up.  New pinheads are also coming along so the season is still on-going. I expect many fields now have over 40% of susceptible stems and so they have enough plant tissue to […]

I apologize for the lateness of this forecast, I have had a bit of difficulty getting data gathered from the weather stations this first time this year. In many areas, the plants are getting close or now have enough susceptible tissue to be concerned about infections by the mummy berry fungus.  Once your plants have […]

In all blueberry areas, it has been a slow start to the season.  I do not expect this current rain, which is predicted to last through Thursday, will cause many infections since there are very few mature cups present to produce spores and the majority of the plants are not far enough along to become […]

Plants are NOT susceptible until at least 40% of stems are at the F2 stage of flower development when the flowers look like crowns (see picture below). Numerous mummy berry pinheads have been found on Thursday, April 18 and 19 in mummy berry plots in North Ellsworth,  Jonesboro and East Machias. Single pinheads have been […]

By Seanna Annis There are a number of different problems you may be seeing symptoms of in your crop field. Please see below for some pictures of common problems at this time of the year. Frost Damage All flower clusters on stem typically are affected Closed flowers not affected as much Leaves can be damaged, […]