Janice LeBoeuf, OMAFRA Vegetable Crop Specialist, Ridgetown
There are a couple of recently recorded presentations about late blight available online.
Dr. Willie Kirk, Michigan State University Plant Pathologist, has a presentation online at http://bit.ly/csDtUG. Bayer has a segment at the beginning on some of their US fungicide registrations, but that ends at about 5:00 on the progress bar at the bottom left of the window. Dr. Kirk gets rolling at about the 6:25 mark (you can slide the indicator on the progress bar back and forth to jump to a different part of the presentation or hear something again). This presentation is about 1 hour long.
Dr. Sally Miller from Ohio State University and Dr. Meg McGrath from Cornell University delivered an online seminar on “Late Blight Management on Organic Farms” on July 1. The recording of the webinar is not online yet as I write this update, but some of the resources have been posted at http://www.extension.org/article/28346. The recorded seminar should be available sometime in the next week. It runs about 1 hour and 15 minutes.
Of course, keep in mind that some fungicides that they mention are not registered for the same uses in Canada. However, there is a lot of useful information on late blight biology and management in both of these presentations.