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 please include one or more photos of the problem, if applicable.  

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

Last updated February 28, 2024