With the wet weather over the past few days, we have had low to high risk of Botrytis infection in fields which already had Botrytis present. If there was no Botrytis seen before this weekend in your field, it is unlikely there will be more disease now. Most fields in the midcoast, Knox, Lincoln and […]
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With the wet weather over the weekend, we have had moderate to high risk of Botrytis infection in fields which already had Botrytis present. If there was no Botrytis seen before this weekend in your field, it is unlikely there will be more disease now. Botrytis infection levels are affected by both temperature and length […]
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There were weather conditions that provided for some risk of Botrytis infection from the rain storms that came through from Thursday, May 28 to Friday, May 29. Please see the chart below for the risk in your area. IF you have already seen Botrytis in your field, then you may have more if you were […]
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Mummy Berry Disease in Hancock and Washington Counties The reports I have from around Washington county are there are drying up cups and no new viable pinheads being produced. Only a couple of sites have reported still seeing drying up cups. I think we are near the end of the mummy berry cup period this […]
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There have been some reports of localized patchy frost damage the last week of May followed by Botrytis symptoms showing up this week. Frost will make blossoms more susceptible to Botrytis infection. I have heard this from growers in the Union area and around the Orland area. In one field, we saw low levels of […]
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Frost In Northern Hancock at our Silsby Plains site and at our Deblois and Cherryfield weather station locations in Washington County, there were frost conditions overnight from Wednesday, May 28 to Thursday, May 29. Lee Beers is a Ph.D. student studying cold tolerance in blueberries and his research has found conditions from 28ºF to 24ºF […]
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I think the mummy berry infection season is now over for 2014. Any remaining cups would have dried up over the last few days, so there won’t be any spores to infect the plants. I don’t think the wet weather we had this weekend or will have on Tuesday will be causing any infection periods […]
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Hancock and Washington Counties Mummy Berry Disease There was another infection period overnight for mummy berry disease in all fields with weather stations in Hancock and Washington counties. Most cups will be dying off by now, but if you have a later or wetter field there is a chance you may have had infection period […]
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Knox, Lincoln and Waldo Counties Botrytis Blossom Blight This is the time of year to scout for Botrytis blossom blight on early blooming blueberry clones. Look at dead open flowers, and any dead or dying tissue (leaves or flowers) you see on weeds near or in your fields. The symptoms are dead, open, flowers with […]
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Now is the time to look for Valdensinia leaf spot in your fields. The wet weather conditions we have had over the last month will have caused many cycles of spore production and infection if you have this fungus in your field. I have seen a new field with Valdensinia leaf spot in Ellsworth. Areas […]
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