Help Needed Distributing Brochures as Part of National Late Blight Project


Large leaf spots often with a light green border are typical for late blight (Photo: Margaret McGrath)

Extension Master Gardeners are ideally able to extend gardening and pest information to other gardeners in their area, thus this is an appeal for help distributing a late blight brochure throughout the US as well as an announcement about it!

Late blight is highly contagious and destructive, thus critical to manage

Anyone who has had late blight affect tomatoes or potatoes in their garden knows the importance of this most destructive vegetable disease, famous for its role in the Irish Potato Famine.

Since it is highly contagious as well as so destructive, it is considered a “community disease”, thus it is critical to report and manage all outbreaks.

Unfortunately, late blight has recently been occurring more commonly in tomatoes and gardens have been involved at the start of epidemics.  Last year on Long Island, NY, garden plants may have been the start of a major epidemic that severely affected gardeners and farmers.

Free printed brochures available by request

An information brochure has been made to meet the need to educate gardeners about late blight and to inform them about a new national project (  Goals of this project include studying occurrence of late blight in the US and developing new management tools including a predictive system. As mentioned in the brochure, reports of late blight need to be confirmed by submitting samples to a local diagnostic clinic. While submitting the sample,  you’ll be able to contribute information on where late blight is occurring, helping researchers understand the distribution of this infectious plant disease, nationwide.

The brochure has details on managing and reporting late blight outbreaks, plus has images to assist with diagnosis. Please send requests for these already printed brochures to me,  Meg McGrath (  Cost to print and ship is covered by the national project.

Thank you for considering participating in this national late blight project.

Meg McGrath
Associate Professor, Plant Pathology
Cornell University, NY


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