Late Blight - Cornell University

Late blight on tomato plant

Horticultural Hotline

If you live in Onondaga County, New York, our trained Master Gardener volunteers can answer your questions on flowers, fruits, herbs, houseplants, lawns, plant health & nutrition, plant identification, pruning, soils, trees & shrubs, vegetables, wildlife and more!

Please email your question to and include a photo of the problem, if applicable. To talk to a Master Gardener Volunteer, call 315.424.9485 ext. 236. Please leave a detailed message if we are not able to take your call. Include your phone number and email address so that we can send you a fact sheet or other relevant material.

If you live outside Onondaga County, New York, please call your local Cooperative Extension office found at

Last updated September 24, 2018