Fasciation

Fasciation– plant disease Common name Fasciation Cresting Causal agent Fasciation can be caused by several factors, including genetic mutation, injury, viral infection, or the bacteria Rhodococcus fascians. Symptoms & Signs Flattened, enlarged, and elongated shoots and flowerheads that appear as fused are seen. The leaves and flowers growing from the abnormal stems are usually abundant. This results in disfiguration, which may look weird and abnormal. In some cases, the flowerheads grow around a central flower in a ring-like fashion, commonly called “hens and chicks.” Transmission Transmission of fasciation greatly depends on the cause. Fasciation caused by bacterial agents is spread via water and enters other plants and trees through open wounds. Others that are caused by genetic mutation are not contagious and do not spread to other plants. Time of concern Spring and summer Common hosts Delphiniums Euphorbias Sweet pea plant Snapdragon Forsythia Cherry tree Foxgloves Lilies Primulas