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13 views

What might be eating my seedlings (no sign of slugs or millipedes)?

I've got a little greenhouse to get seedlings started and to protect potted vegetables until a bigger, albeit temporary hoop greenhouse can be built (happening now...). Last night I lost a dozen ...
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0answers
152 views

What is this yellow coloration of cotton wool used as growth media for hydroponics?

I have built a simple hydroponics DWC system, using a window box with aeration. Actually a system exactly like the below picture: I am growing lettuce and cabbage, and a week ago I have ...
4
votes
1answer
210 views

What are these black spots on white splotches appearing on my tomato seedling?

Here are pictures of the infected leaves. I cut them off the plant as soon as I saw them today. Click for full size Here are close-ups of the most infected leaf: Click for full size What can ...
4
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0answers
464 views

What are these little plants with round leaves, growing in my potting soil? [closed]

I have plants growing in my seedling pots that I didn't put there. The potting soil says it's weed-free. What are these plants?