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Monilinia infection periods possible later this week

The warm weather this past weekend and the last few days will have had buds develop and probably many fields have susceptible buds.  I have not had reports on bud development this week, so please check your field. Mummy berry cups are probably in most regions and typically continue for at least 2 weeks after […]

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Infection by Mummy berry fungus unlikely this weekend

There are mummy berry (fungus name Monilinia) pinheads, developing cups, and/or active cups being produced plots have been examined in Midcoast and Downeast blueberry fields. In the fields I have reports from, the flower buds are just starting to progress into F2 (T2) stage when they look like a crown. I suggest you wait until […]

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Mummy berry season is starting

I have reports of mummy berry cups in West Rockport, Hope, near Deblois and around the barrens. The plants were mostly in F1 but some were at F2. Please check your own field for the flower development. If you use fungicides to manage mummy berry disease, I recommend waiting until there is approximately 30 to […]

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Looking for Red Leaf Disease in Wild Blueberries

I am looking for crop fields with red leaf disease this summer, since one of my graduate students, Nahida Kabir, will be studying red leaf disease starting this summer and continuing in the summers of 2026 and 2027.  We are looking for fields affected by red leaf disease ( see pictures below) with patches of […]

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Blueberry season is starting

We have just started to see bud swelling in the Midcoast region. The warm weather forecast for this weekend and early next week will probably get the plant buds starting to open. We are starting to get our blueberry weather stations out and hope to have them all out over the next week or so. […]

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Mummy berry report for May 7th

All fields with weather stations had conditions for a Monilinia infection period overnight from May 6th to May 7th.  The fog started in the evening from about 6:30 to 8:30pm and continued until morning.  I do have reports of cups still present in the Midcoast and Downeast so there is a good chance this weather […]

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Mummy berry-Monilinia infection April 30th to May 2nd

There were Monilinia infection periods at most weather station locations overnight from April 30th to May 1st and May 1st to May 2nd (please see table below).  The raining weather is continuing in most areas.  Pinheads and cups are still being found so there is still chance of infection.  Unless you have a late field, […]

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Mummy berry Report April 29, 2024

There were weather conditions for Monilinia infection in most of our weather station locations.  In most fields, the rain started about 7 to 8pm on April 28 evening and carried over to the morning of April 29th.   One area, around Appleton and Liberty, did not have Monilinia infection conditions.   Most plants would have been open […]

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