bugs eating indoor basil plant

Question

The basil plant has been growing beautifully in my kitchen window for a month or so. In the last few days, I have noticed a lace-like development on the leaves and a tiny black residue on the sill. I cannot see any insects – any ideas?

Answer 1

Sounds like Sooty Mold.
Here is a link with more information.

https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm