Hi everyone, i have a problem that noone so far have been able to identify. My chilie plants (and bell peppers) all have the same issue. As you can see on the attached pic their leaves get brown/white spots, mainly on top. The leaves then turn yellow, and in the end fall off. The bottom leaves go first. Tve plant seems to be fighting this, and does sprout new leaves, but it seems kt is slowly loosing the fight. Any tips on what this could be?