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
spinach from garden bed 1 planted row next to iceberg lettuce
front of spinach leaf from garden bed 2 which has romaine lettuce and butter bib growing fine
blown up back view of spinach leaf garden bed 2
spinach in garden bed 2 with butter crunch lettuce
back of spinach leaf from garden bed 2 (romaine & butter growing fine)
spinach leaf from garden bed 1 growing iceberg lettuce broccoli and cauliflower in this bed
spinach garden bed 2 also
blown up front view of spinach leaf garden bed 2
all six spinach plants in garden bed 1 (iceberg/brocolli/cauliflower also in this bed)
Posted
by: adrianne
(3 points)
Posted: May 9, 2017
Answers
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)
Posted: May 10, 2017
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...
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...
Cladosporium leaf spot infected leaves
Very early symptoms of Cladosporium leaf spot
Close up of Watersoaked lesions on spinach leaves caused by anthracnose
Leaf spots caused by Cladosporium variabile.
Cladosporium leaf spot symptom
Microscopic view of asexual spores(condia) of Cladosporium leaf spot
Spores of the spinach anthracnose pathogen
Necrotic lesions of Cladosporium leaf spot
Watersoaked lesions on spinach leaves caused by anthracnose
Anthracnose leaf lesions and decay
Posted
by: Dr. Ravishankar Narayana
(15 points)
Posted: May 11, 2017
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Hi Adrianne, please upload the close up images of infected leaves. Thanks over 7 years ago.
this is all I have of the spinach plants but I will take some pictures after work today and post them
over 7 years ago.
Hi I just added some pictures of the spinach from both garden beds - I took the pictures this morning 5/11/17 over 7 years ago.