1
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Spinach plants yellow with spots

Spinach    Boston, Massachusetts

what do you think is going on with these spinach plants - I live in New England it has been around 50 degrees and kind of wet for May


Posted by: adrianne (3 points) adrianne
Posted: May 9, 2017


Dr. Ravishankar Narayana commented,
Hi Adrianne, please upload the close up images of infected leaves. Thanks
over 3 years ago.

adrianne commented,
this is all I have of the spinach plants but I will take some pictures after work today and post them

over 3 years ago.

adrianne commented,
Hi I just added some pictures of the spinach from both garden beds - I took the pictures this morning 5/11/17
over 3 years ago.



Answers

0
points
this is all I have of the spinach plants but I will take some pictures after work today and post them


Posted by: adrianne (3 points) adrianne
Posted: May 10, 2017




0
points
I think it could be Cladosporium leaf spot or anthracnose disease (excluding Stemphylium Leaf Spot from the list because generally we won't see the green/black mycelium and sporulations on the spots).
Both are fungal diseases. The Cladosporium appears as round, tan color spots with dark green spores and mycelium in the center of these spots. Whereas anthracnose disease shows small, circular, water‑soaked lesions which later turn brown to tan and appear papery. These spots exhibit heavy growth of tiny black fruiting bodies.
Microscopic observation of spores will help in identifying the exact pathogen.

For more information
http://mtvernon.wsu.edu/path_team/spi...
http://ipm.ucanr.edu/PMG/selectnewpes...
https://nevegetable.org/crops/disease...


Posted by: Dr. Ravishankar Narayana (11 points) Dr. Ravishankar Narayana
Posted: May 11, 2017


adrianne commented,
Thank you for the help and information
over 3 years ago.



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