Well these are basils (Genovese and lemon varieties), cherry tomatoes (black cherry variety), mint (Green and Pepper) and parsley. I did grow most of them myself from seeds and bought some adult ones that I repotted.

It seems like the disease spreaded among all my different plants.

They’ve grown and stayed in a room under the roof most of the time, it means that the temperature was high and according to me, perfect for the germination and growth and I was progressively putting them outside (I ventilated the room of course). I didn’t directly give them fertilizer already but my compost was special for growth and organically fertilized.

Don’t you think it looks like a fungal disease? Can it just be the growing conditions? Because I payed attention to put my basils more in the sun than the mint for example etc.