My seeds have black on them then it eats the roots

Question

It spreads rapidly like tiny brown things stuck to leaves; black growth on roots. I’ve been using foam till I can work out what’s going on. I get seeds straight out of potting mix, gently clean roots and leaves, then put them in foam. It’s spread quickly to other flowers and potting mix. I’m stumped. Hope you can help thank you

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Answer 1

It appears that the seeds and roots are infected with fungus.. The photo of the crane fly may not be related to the fungus disease.

Here is an article with some guidelines for avoiding fungal disease of seeds and seedlings:

https://www.gardeningknowhow.com/garden-how-to/propagation/seeds/fungus-control-in-seed-trays.htm