Basil Downy Mildew Update

Basil downy mildew has now been detected in potted basil across Ontario and many areas of North America. Spores will likely be released by basil plants from garden centres and home gardens. Field growers should be monitoring fields closely for symptoms of the disease. Apply fungicides preventatively when conditions are conducive to disease development. Conditions that promote basil downy mildew include warm temperatures, high humidity and periods of leaf wetness, which can include dew periods. The weather over the past week has been favourable for disease development. Although field infection has never been detected this early in the season in Ontario, there is limited experience with this disease and the right conditions may lead to spread from home gardens into the field. For a description of symptoms and for registered fungicides, please refer to the previous downy mildew post (Click here).

About Sean Westerveld

Ginseng and Medicinal Herbs Specialist, OMAFRA
This entry was posted in Culinary, Herbs and tagged , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s