other diseases

Frost and Botrytis risk from May 23rd to June 1st

Possible Frost There were possible frost conditions in most fields from Saturday May 23rd to 24th and Sunday May 31st to June 1st.  Some fields also had frost conditions Sunday May 24th to Monday May 25th.  Temperatures below 30F can cause some damage but temperatures below 28F are associated with yield loss.   The table below […]

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6.13.19 End of Botrytis Risk in Most Fields

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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5.27.19 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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5.31.17 Botrytis risk, May 31 to June 1

Mummy Berry Mummy berry symptoms are still appearing in many fields.  IF you have both dead leaves and flowers and see the grey masses of spores at the base of the flowers and leaves you have mummy berry. Botrytis I have not heard of any Botrytis reported yet this year. Symptoms include dead flowers with […]

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5.25.17 Botrytis Risk from May 25 to May 26

Mummy Berry Mummy berry symptoms have appeared in many growers fields.  You may be finding both dead flowers and leaves on your plants.  If it looks like the flowers did not open before they died, the flowers were probably killed by mummy berry. You can see grey masses of spores at the base of the […]

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5.25.16 Botrytis risk, May 23 to May 25

With the last bit of wet weather we have had from none to moderate risk of Botrytis infection, if it is already in your field.  You need to have the fungus present in your field in a number of clones before we get the wet weather conditions to get any spread of Botrytis.   We […]

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6.10.15 Botrytis Infection Risk, June 8 to June 10

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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6.02.15 Botrytis Risk of Infection, May 29 to June 2

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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