The 9th Wild Blueberry Blight-line Update

Friday, May 10, 2013

The Wild Blueberry Blight-line is brought to you by WBPANS, Perennia and Delbridge Disease Management.

The 9th update for Tuesday May 10th is as follows:

We had an infection period through most of the province on Thursday afternoon and evening. 

Many sites in Antigonish and Guysborough counties as well as Cape Breton may not yet be at the 40% F2 stage. 

Most of the province is well beyond the 40% F2 stage.  We are starting to see cups dry up at our monitoring sites across central Nova Scotia, which means disease risk is decreasing, but not totally disappeared.

For those that are beyond the 40% F2 stage and did not make a fungicide application prior to the wet period, you have up to 72 hours to make an application with Topas, Mission or Jade to prevent infections from causing crop loss.

If you did make an application in the last couple of days and you had a high percentage of floral buds open, you should be protected for 7-10 days.

Note: I did see an open flower in a very early field near Springhill on Wednesday. 

The forecast calls for intermittent wet weather from Friday through to next Tuesday.  There are still some viable cups in fields, so there is a decreasing disease risk.  If a wet period occurs an application should be considered, especially in later fields (Antigonish County, Guysborough County and Cape Breton).
The Next update will be Tuesday May 14th, in the late afternoon.