Mummy berry cups are still present in fields and the plants are still susceptible. There have been Monilinia infection conditions across Maine blueberry areas from Lincoln east through to Washington county. Two to three infection periods have occurred from May 4th to May 7th in all fields with reporting weather stations, and I expect 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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Mummy berry cups have dried up and will be gone in the Midcoast areas. In most Downeast areas the cups have dried up and are almost gone. Cups that were seen in Blueberry Hill Farm in Jonesboro, May 10th, are dried up and new pinheads have not been seen. With this past warm weather, the […]
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Mummy berry season Mummy berry season is starting to end in some areas. If the cups are finished in your area, there is no advantage for spraying fungicides for mummy berry control at this time. The secondary Monilinia spores on the dead tissues (mummy berry symptoms) are carried by pollinators to the healthy flowers to […]
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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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The rain caused conditions for Monilinia infection in most fields with weather stations from May 2 to the morning of May 6th. Depending upon the field, there were one to four infection periods in this stretch of days. If you applied fungicides on or after 7 to 10 days before these infection periods (April 22 […]
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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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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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There were no infection periods on Wednesday April 24th to April 25th. The temperatures were too cold for infection. Most fields with weather stations have experienced temperatures below 28 F this past week for multiple nights. It is not clear what effect this may have on developing buds. The next chance for Monilinia infection is […]
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