Fusarium wilt? - Ask Extension
One of my tomato plants was showing signs of fungal infection. All leaves dead or almost dead. Fruit not affected. See attached pics.
Nearby tomato...
Knowledgebase
Fusarium wilt? #800069
Asked July 08, 2022, 1:34 PM EDT
One of my tomato plants was showing signs of fungal infection. All leaves dead or almost dead. Fruit not affected. See attached pics.
Nearby tomato plants showing early similar symptoms.
Is it the dreaded fusarium or something else?
Montgomery County Maryland
Expert Response
Hi-
Some of the leaf spots appear to be early blight lesions. This is a very common fungal disease that starts on lower leaves and moves up the plant. Warm, wet, humid weather increases disease severity.
Fusarium wilt would have caused leaves and stems of the affected plant to show progressive wilting (healthy, green leaves going limp during the day with some recovery at night). One would see browning of the vascular tissue. So, if the plant wilted, then the light brown streaking in the photo could indicate fusarium wilt.
Pull out the dead plant and remove the lower 3-4 leaf branches of the remaining plants to improve air circulation around leaves and stems.
Early blight: https://extension.umd.edu/resource/early-blight-tomatoes
Fusarium wilt:
https://extension.umd.edu/resource/fusarium-wilt-tomatoes-home-garden
http://plantpathology.ca.uky.edu/files/ppfs-vg-15.pdf
Jon
Some of the leaf spots appear to be early blight lesions. This is a very common fungal disease that starts on lower leaves and moves up the plant. Warm, wet, humid weather increases disease severity.
Fusarium wilt would have caused leaves and stems of the affected plant to show progressive wilting (healthy, green leaves going limp during the day with some recovery at night). One would see browning of the vascular tissue. So, if the plant wilted, then the light brown streaking in the photo could indicate fusarium wilt.
Pull out the dead plant and remove the lower 3-4 leaf branches of the remaining plants to improve air circulation around leaves and stems.
Early blight: https://extension.umd.edu/resource/early-blight-tomatoes
Fusarium wilt:
https://extension.umd.edu/resource/fusarium-wilt-tomatoes-home-garden
http://plantpathology.ca.uky.edu/files/ppfs-vg-15.pdf
Jon
