Houseplants Diseases and their Control

Houseplants may get attacked by diseases. Usually, the appearance of a disease is a sign of poor growing conditions. It is important to control any disease immediately it is noticed. Any delay in the control of houseplant disease may result in spread to other houseplants which may then become uncontrollable leading to loss of your houseplants. The key is to regularly inspect your houseplants for any signs of disease, treat any disease immediately and correct the cultural fault leading to the problem.

Common houseplants diseases and how they can be controlled.

Houseplant Disease, Powdery Mildew disease

Powdery Mildew Disease

Powdery Mildew is a fungal disease characterized by spotting or coating of the leaf surface with a white powdery deposit. This leads to disfigured leaves and it can spread to the stems and flowers. Learn more on Powdery Mildew and how to control it.

Houseplant Disease, Root rot disease

Root-rot Disease

The first sign of root-rot disease is yellowing and wilting of the leaves which is rapidly followed by browning and houseplant collapse. The cause is fungal decay due to waterlogging of the soil. Learn more on Root-rot Disease and how to control it.

Houseplant Disease, Crown and stem rot

Crown and Stem Rot Disease

With Crown and Stem Rot Disease, part of the stem or crown turns soft and rotten. If the diseased are is at the base of the plant, it is called Basal Rot. Learn more on Crown and Stem Rot Disease and how to control it.

Houseplant Disease, Leaf Rust

Leaf Rust Disease

Leaf Rust disease is characterized by brown concentric rings of spores on the underside of the leaves. Learn more on Leaf Rust Disease and how to control it.

Houseplant Disease, Leaf Spot

Leaf Spot Disease

Leaf Spot Disease is characterized by brown, moist spots on the foliage. In a serious attack the spots enlarge and merge, killing the whole leaf. Learn more on Leaf Spot Disease and how to control it.

Houseplant Disease, Anthracnose disease

Anthracnose Disease

Anthracnose Disease is characterised by sunken black spots on the foliage. Dark brown streaks may occur at the leaf tips. The disease is associated with warm and very moist conditions. Learn more on Anthracnose Disease and how to control it.

Houseplant Disease, Black Leg disease

Black Leg Disease

Black Leg disease is a disease of stem cuttings where the base of the cutting turns black. The cause of the disease is bacteria and the predisposing factors are waterlogging and overcompaction of the soil. Learn more on Black Leg Disease and how to control it.

Houseplant Disease, Botrytis Disease

Botrytis Disease

Botrytis disease also called Black Mould is characterized by grey, fluffy mould which can cover all parts of the houseplant; leaves, stems, buds and flowers if the growing conditions are cool, humid and still (no air circulation). Learn more on Botrytis Disease and how to control it.

Houseplant Disease, Damping off disease

Damping Off Disease

Damping Off Disease is a fungal disease which attacks the root and stem bases of seedlings. It causes shrinkage and rot at the ground level resulting in the seedlings toppling over. Learn more on Damping Off Disease and how to control it.

Houseplants disease, Oedema disease

Oedema Disease

Oedema also called Corky Scab is characterized by hard corky growths on the underside of leaves; this is the houseplants response to waterlogged soil coupled with low light intensity. Learn more on Oedema Disease and how to control it.

Houseplants Disease, Sooty Mould disease

Sooty Mold

Sooty Mold is a black mold which grows on the sticky honeydew deposited by aphids, scales, mealy bugs and whiteflies. This sooty mould reduces plant growth and vigour. Learn more on Sooty Mold and how to control it.

Houseplants Disease, Viral disease

Viral Diseases

The indication of viral infections in houseplants are many and varied. They include; stunted growth, distorted stems, pale green or yellow spots or small patches on leaves, large white streaks on colored flowers. Learn more on Viral Diseases and how to control them.

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