Tiny Black Spots On Indoor Plants

Diplocarpon rosae or black spot fungus isn t just a disease of roses.

Tiny black spots on indoor plants.

The tiny black bugs on plants are normally either fungus gnats aphids or spider mites. As the sap feeding colony grows sooty mold. The deep purple triangular shaped foliage looks almost black. The black spots on houseplants are a common fungal disease.

It can attack any plant with fleshy leaves and stems if the conditions are right. They do not appear to have anything under them. If you want to grow a black indoor plant you re absolutely going to adore the purple shamrock. However when you find tiny black bugs called gnats or fruit flies on your plants you must get rid of them.

Sooty mold sooty molds often start as small spots on houseplants feeding on those tiny droplets of honeydew produced by a few sap feeding pests. Black spot leaf disease shows itself first with black spots appearing on the leaf then with rings of yellow as the spots grow until the leaf turns entirely yellow and then falls off. Look for tiny black irregular spots which group near the ends of leaves and along veins. Remove and destroy the affected houseplant as the fungi thrive on decaying plant matter.

Although gnats do not feed on plant leaves they multiply and get into the soil and harm the plant s roots. Find gnats crawling in the soil or hovering above the surface and around the leaves. The black spots do rub off and are very small.