The last few days I have noticed black marks along the sides of my raised garden bed, but have just assumed them to be bird droppings. However, this morning I happened to noticed that the black markings are coming from the tops of these skinny white sprouts that seem to come and go over night?
Are these a type of fungus, or are they actually a seed from bird droppings? Are they good/bad for the garden? Thanks in advance, and looking forward to your responses