There were temperatures below 28F overnight from May 22nd midnight to 6am. Temperatures below 28F can injure or kill open flowers. What flower damage occurs to a field depends upon the blueberry plants genetics, if the plants are in dip in the ground and how cold and for how long there are cold temperatures. Weather […]
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There were conditions for Monilinia infection from May 9 to 10th in all fields monitored with a weather station. In the Waldoboro, West Rockport, Hope, Ellsworth and Blue Hill weather station locations, the rain started about 3pm and in Washington county about 5 to 7pm as the rain moved farther east. Some fields may have […]
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Midcoast and Downeast fields All fields likely had an infection period from May 2nd to May 3rd if they had plants that had about 30 to 40% of their flower buds at F2 (crown stage). The rain started in Waldoboro on May 2nd about 9am. In Blue Hill, Ellsworth and Aurora the rain started in […]
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There were still mummy berry cups and pinheads seen in Midcoast and Downeast fields on Thursday May 8th and Friday May 9th. With the cool wet weather over the weekend, I would expect the cups and pinheads were still present. Please take a look at your mummy berry plots to let me know when the […]
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I suspect there are mummy berry cups across all blueberry areas, unless it is a very late field. The flower buds also seem to be at least 40% F2 or past that in development. The rain during the last two days produced conditions to cause Monilinia infections from Friday May 2nd evening to May 4th […]
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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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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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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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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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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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