Cooperative Extension: Maine Wild Blueberries

Hancock and Washington counties. Most growers are reporting dried up Monilinia cups and no new ones. I think we are reaching the end.  If you do have a later developing field or a field with wet heavy soil, you may still have cups around this weekend. We had conditions from May 19 to May 20 […]

Hancock and Washington counties Cups are drying up and dying in mummy berry plots in many fields. There are still reports of cups in some fields. I have found that when cups are starting to die off in mummy berry plots, there may still be some later cups produced but it is the last few. […]

Hancock and Washington counties  There was another infection period from May 15 to May 16 in some areas. It depended upon the local temperatures and rain fall length which varied across the region. Please take account of those conditions in your field. Please let me know what your mummy berry plots are doing in these […]

Midcoast area I have reports of cups dried up and no new cups. Cups were starting to dry up last Thursday and Friday but were still present. I have no reports of cups in the midcoast area after last weekend (May 13). Most fields in this area were probably not affected unless there was a […]

I still have reports of some cups in the Midcoast area and Downeast is still in peak cup producing conditions. I suspect we are getting close to being done with cups early next week in some Midcoast areas. The rain across the state caused conditions for mummy berry infection period in all weather station locations. […]

The rain across the state caused conditions for mummy berry infection period in all weather station locations. I think we are still in peak mummy berry spore producing in most locations. I have not had any reports of cups drying up and past. Plants will likely be susceptible unless you have a very late field. […]

Mummy berry infection periods were possible in some fields over the weekend.  Please see table below for fields in your area. Cups are still present in fields across the Midcoast and Washington counties.  There has been  a lot of variability in bud development reported.  Most fields are likely at the susceptible stage, but you should […]

Weather conditions for a mummy berry infection period were reported in all fields with weather stations.  Cups are present in fields across the Midcoast and Washington counties.  Most fields are reported to be at the susceptible stage, but you should check your field. If you have applied a fungicide in the past 7 days before […]

There were infection periods across blueberry growing regions in Midcoast and Downeast overnight.  Most growers with mummy berry plots in these regions have reported cups in their fields.   Many have reported their plants are at 30 to 40% F2, but some fields were not at that stage yet.  Please check your plants. If you have […]