Disease Forecast

End of Botrytis risk in most fields, June 13

It looks like there was little Botrytis risk overall during most of bloom period in most fields.   As most fields are in full bloom or close to it, there is little risk of further infection that would severely affect bloom.   Of the wet periods we have had in June, only two produced a  risk for […]

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Frost event Downeast morning of June 4

Frost The weather station in Deblois recorded a frost (temperatures below 32F) for two hours in the early morning of Tuesday  June 4th.   Other weather stations in Bluehill, Columbia, Whiting/East Machias and Cooper reported temperatures below 40F but not frost. There still may have been frost in other fields in these areas, particularly in low […]

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Weather station app and Frost event morning of May 28

Frost Some fields in Hancock and Washington counties had a frost event (temperatures below 32F) in the early morning of Tuesday May 28.  Please see table below to see which areas had recorded frost conditions. Even if a weather station did not report temperatures less than 32F, there still may have been frost in low […]

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Botrytis risk May 23 to May 27

Botrytis is a fungus that varies each year in its presence in a field.  You need to have infection in early blooming clones or other plants in your field to provide the spores to spread the infection.  If you do NOT have  symptoms (dead flowers/leaves WITH black hairs), then no matter how wet the weather […]

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Mummy berry infection period in some fields May 17 to May 18

Hancock and Washington counties Cups are drying up and dying in mummy berry plots in many fields. There are still reports of cups in some fields. I have found that when cups are starting to die off in mummy berry plots, there may still be some later cups produced but it is the last few. […]

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Another mummy berry infection May 15 to May 16

Hancock and Washington counties  There was another infection period from May 15 to May 16 in some areas. It depended upon the local temperatures and rain fall length which varied across the region. Please take account of those conditions in your field. Please let me know what your mummy berry plots are doing in these […]

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Mummy berry infection May 14 to May 15

Midcoast area I have reports of cups dried up and no new cups. Cups were starting to dry up last Thursday and Friday but were still present. I have no reports of cups in the midcoast area after last weekend (May 13). Most fields in this area were probably not affected unless there was a […]

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Mummy berry infection period May 10

I still have reports of some cups in the Midcoast area and Downeast is still in peak cup producing conditions. I suspect we are getting close to being done with cups early next week in some Midcoast areas. The rain across the state caused conditions for mummy berry infection period in all weather station locations. […]

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Mummy berry infection period May 7 to May 8

The rain across the state caused conditions for mummy berry infection period in all weather station locations. I think we are still in peak mummy berry spore producing in most locations. I have not had any reports of cups drying up and past. Plants will likely be susceptible unless you have a very late field. […]

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