Water-soaked black and brown spots on plant leaves and stems often indicate a fungal or bacterial disease is the problem.

Insects can cause a fiddle leaf fig’s leaves, stems, and branches to develop brown spots. The most common culprits are ...

Question: My pepper plants have started getting brown spots ... the leaves, stems and fruit of affected plants. It appears first on the undersides of leaves as small water-soaked spots.

Seeing spots ... buy plants free of the signs of virus diseases. Flower production is reduced on virus infected plants. Cankers first appear as small reddish or brown areas on the stem.