New blight on community garden tomatoes - Ask Extension
Are you able to identify this tomato blight/fungus and suggest organic remediation? I have never seen this particular problem before in our large comm...
Knowledgebase
New blight on community garden tomatoes #873818
Asked June 19, 2024, 4:13 PM EDT
Are you able to identify this tomato blight/fungus and suggest organic remediation? I have never seen this particular problem before in our large community garden. It seems to have white fuzz as well as the black blotches
Blue Earth County Minnesota
Expert Response
It looks suspiciously like unintentional herbicide damage. Please read through the description in this link. Open the drop down box: https://extension.umn.edu/plant-diseases/tomato-disorders
Is there any other explanation? There is no way the tomato was recently exposed to herbicides.
Our community garden is a completely organic. I have never sprayed with herbicide and neither have my neighbors. I did get the plant from a nursery, which may have used something, but it developed the issue a month after leaving the nursery. Other plants from the same nursery have no issue. I did just mulch prior with leaves from the City leaf pick up, but those leaves have been sitting since November.
Thank you,
Lynn
On Jun 19, 2024, at 8:11 PM, Ask Extension <<personal data hidden>> wrote:
The only other possible answer I can find is Tobacco Mosaic Virus but that does not include fuzz in the description. Hopefully that is not the problem. I am giving you a link to that and a suggestion that you send a sample to the Plant Health Clinic. As far as herbicide damage, if any spraying was done for weeds in the surrounding area, wind could have caused drift onto your plants. I doubt that they will be healthy. The best would be to remove them and all traces of them. Wash any gloves and tools used. Then plant new plants. https://extension.umn.edu/disease-management/tomato-viruses
