What are the common types of diseases in flowers

Common diseases of flowers and plants

The types of plant diseases can be divided into four categories: fungal diseases, bacterial diseases, viral diseases and physiological diseases.

Fungal disease

Fungal diseases account for the largest proportion of diseases, and the nutrients of fungi are mainly hyphae, which grow in and out of plants. When it grows to a certain stage, it will produce spores and continue to reproduce. The environment caused by fungal diseases is mostly wet, and mildew and powder will grow in the tissue parts of the host. From the external point of view, fungal diseases are characterized by decay and discoloration, tissue necrosis, wilting deformity, ulceration and so on.

Bacterial disease

Bacterial disease

The proportion of plants infected with bacterial diseases is small, and most of them are acute necrosis. The external manifestation of bacterial diseases is that there will be spots and ulcers at the site of the disease, and water stains, oily stains and bacterial pus will appear on the lesions.

Viral disease

Viral diseases are mainly caused by virus invasion and infection, harming a wide variety of flowers and plants. From the external point of view, viral bacteria are manifested in plant discoloration, spots, rings and clear veins. Symptoms such as clumps, dwarfism, deformity and necrosis. The source of the virus is mainly transmitted by inhaling plants through a variety of insect mouthparts.

Physiological disease

Physiological diseases are mostly caused by bad environment, such as high temperature, low temperature, or lack of nutrition, and other external causes, such as the external performance of flowers: deciduous leaves. Fruit drop, branches and leaves withered and yellow, etc.