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Mummy berry infection period in Appleton and West Rockport

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Lincoln, Knox and Waldo counties

Conditions for a mummy berry infection period occurred at the Appleton  from Monday May 5th through to Tuesday May 6th  and at the West Rockport station from Tuesday at 1:20pm to Wednesday morning.  Infection periods were not seen in Dresden Mills or Belfast weather stations. The temperatures were too cool or the rain too sporadic for an infection period. Mature cups producing spores are found in fields in these counties. 

In those areas where there was an infection period, if you have applied fungicide on or after Tuesday April 29th, your plants were protected during the infection period this weekend.  If you have not applied fungicides, you have until the evening of Thursday May 8th to Friday May 9th, depending upon the rain in your area,  in most areas to apply fungicides, (propiconazole or fenbuconazole) to kill any infection.  Other fungicides should be applied as protectants and before infection periods occur. 

Hancock and Washington counties

No infection periods were produced from Monday through Wednesday afternoon.  Flower bud development was examined at two sites on Tuesday May 7th and found to be 18% of flower buds at F2 in a field near Deblois, and 20% of flower buds at F2 in a field in Township 19.

 

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