Black flies on indoor plants (Mourning mosquito)
Open a good bottle of red wine and drink with pleasure as a couple or alone. In the end, however, leave something for the little pets.
Leave half a glass of red wine next to the houseplants for 1-2 days. Some fall directly drunk into the glass, others die of alcohol poisoning on the windowsill.
As a precaution, you should organize a beach party for the unloved plant guests and cover the soil completely with bird sand, so that the stubborn, still hatching flies can no longer remove new eggs.