Skip Navigation

Mummy berry blight may not be finished yet: Monday May 19th

Print Friendly

Lincoln, Knox, Waldo counties

Only dried up cups were found last week in these areas. There is a chance later fields farther north around Belfast area may still have had infection periods this last weekend.  I expect fields farther south were not affected.

Hancock and Washington counties

Cup that would produce spores were found on Sat. May 17 in Whiting area and numerous spore producing cups were found on Monday May 19th at Pea ridge near Cherryfield.   At other sites, the cups had dried up or were drying up on Friday, May 16th in the mummy berry plots.   I have seen this in other years where the cups are done in mummy berry plots but some mature cups can still be found in the field with some searching.  I expect cups can still found around in the barrens during this last weekend and I expect through the next few days.

Infection periods occurred from Friday May 16th through Monday May 19th (please see chart below) and are expected later this week.

Infection periods and fungicide applications

In those areas where there was an infection period starting Friday May 16th  or the morning of Saturday May 17th, if you have applied fungicide on or after Saturday May 9th your plants were protected  and  you have until the evening of  Tuesday May 20th,  in most areas to apply fungicides to kill any infection. 

If you would be applying a second application of propiconazole, it would be a good idea to switch to a different fungicide with a different mode of action to help prevent resistance to propiconazole developing in your field (Please see the 2014 fungicide chart).   Other fungicides should be applied as protectants and before infection periods occur.

Locations First Infection  period  Second Infection period  Mummy berry plot Mummy berry development
Dresden Mills likely none likely none No n/a
West Rockport likely none likely none Yes dried up cups
Appleton likely none likely none Yes dried up cups
Belfast  Fri. 8:40pm?  Sun. 7:40pm? no n/a
Sedgewick Sat. 10am Sun. 4:20pm no n/a
North Ellsworth Sat 10am Sun. 4:20pm Yes ?
Eastbrook/Waltham Sat. 11am Sun. 3:20pm Yes ?
Deblois station  down station down Yes Mon. cups
Cherryfield Sat. afternoon Sun. 3pm Yes Fri. dying cups
Jonesboro Sat. 12:30pm  continued from Sat. Yes Mon. dead  pinhead
Wesley  Fri. 9:20pm Sun. 12:40pm Yes Fri. dying cups
East Machias/Whiting Fri. 9:20pm  Sat. 12:40pm Yes Sat. cups

Comments are closed.