When your zinnias have this Alternaria leaf spot, small, reddish brown spots appear on the surface of the leaves of the plant. Additionally, the spots will have white to grayish white centers that ...

Why does my plant have brown spots on the leaves? Are your houseplants developing brown spots on the plant leaves? Water-soaked black and brown spots on plant leaves and stems often indicate a ...

Struggling to work out why your houseplant has brown spots on its leaves? Read this. Frustratingly, there are a number of reasons why a houseplant might develop brown spots – and each requires a ...