May 10th to 11th had conditions for another Monilinia infection period which started about 5 to 6pm in Waldoboro, Hope, West Rockport and Ellsworth, and later in the evening in Aurora, Blue hill and Jonesboro fields. Some fields in the barrens had wet conditions that continued through May 10th from the start of the rain […]
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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 area There were suitable conditions for Monilinia infection from May 6 to May 7 in the fields with weather stations. The rain started around 3 to 4pm on Wednesday May 6. If you applied fungicides after April 26 to 29 (10 to 7 days from this past infection period, respectively), there is a good […]
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Wild Blueberry Newsletter May 2026 Wild Blueberry Plant Development Bud stage T2 has arrived and some producers have begun spraying for mummy berry. There is a possible infection window approaching on Sunday with the rain forecasted. This is a critical stage to observe in your field because at this stage the bud has opened enough for […]
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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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Midcoast With the warmer weather, mummy berry cups have been seen in fields in Waldoboro, West Rockport and Hope. Fields in the midcoast varied from 10 to 40% of the flower buds at F2 (crown stage). If the field had more than 30 to 40% of flower buds at F2, this would have been enough […]
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Plant development Most plants are not ready yet. From the farthest south I have heard from, around Dresden Mills, there are some fields that are close to being ready. The phenology tracker report shows only about 1 to 8% of flower buds at F2 (crown stage and susceptible) which is what I saw in Ellsworth […]
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Wild Blueberry Newsletter April 2026 Wild Blueberry Equipment Google Group This is a new resource in the form of a google group which is just like an email listserv. The goal of this email group is for producers and experts to exchange questions, answers, and trouble shoot the purchasing, running, fixing, and improvement of […]
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Wild Blueberry Newsletter April 2026 Conference Follow-Up At this year’s UMaine Wild Blueberry Conference 110 farmers and agricultural service providers came together to commiserate, celebrate, and plan ahead. We talked about so many good ideas and recent research findings. Presentation recordings can be found here. Updated Factsheets will be available soon. News Center Maine and the Ellsworth American covered the event […]
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Wild Blueberry Newsletter March 2026 Updates Individual Farm – Extension Office Hours Dr. Calderwood has set up Extension Office Hours across the wild blueberry growing regions of Maine this spring for one-on-one free consultations. Sign up for an hour and a half time slot to discuss anything from field management, business planning, how to get […]
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