10+ Brown Spots On Lettuce Leaves. Many aerogardeners report little brown spots on some of the leaves in the salad greens seed kit. A lot of shoppers are puzzled when a physiological disorder that may develop during postharvest transport and storage, russet spotting is particularly common in iceberg lettuce.
What S Wrong With My Plant Garden University Of Minnesota Extension from apps.extension.umn.edu
When overwatering occurs you get some leaf drop but you also stress the plant so it is vulnerable to bacterial/fungal/viral infections which are the you can reduce the spotting by increasing the light levels and decreasing the amount of water. Lettuce, lactuca sativa, is a leafy herbaceous annual or biennial plant in the family asteraceae grown for its leaves which are used as a salad green. Vitians was first described in the united states by nellie brown in 1918 from diseased lettuce in south carolina and virginia.
The lower leaves turned brown and droopy, and then died and there are brown spots as you can see on the bigger leaves.
I would suspend fertilizing and don't use hard water. This is a red leafed lettuce just starting to show its colors. Whether you're storing lettuce for several days or just trying to this causes a chemical reaction that turns the leaves brown. I assumed it was a.
