Pest: Fasciation

Pest Type: Infectious disease, bacteria

Major Identifying Features: Fasciation is an abnormal flattening of stems, often appearing as if several adjoining stems have fused, fasciated plants have short swollen clumps of distorted shoots, leaves growing from distorted stems are abnormally abundant and undersized, distortion often appears at the plant base

Life Cycle: Cause is not understood, might be genetic or caused by bacteria, fungi, or viruses, bacteria survive on infected plants and debris, they spread in water and through wounds

Pest Rating: Minor to moderate

Management Rating: Moderate

Host/Season/Outbreak Information: Many plants are affected by fasciation including alyssum, aster, carnation, chrysanthemum, geranium, impatiens, Marguerite daisy, nasturtium, petunia, primrose

Damage Information: Fasciation can distort and damage flowering plants

Management Options: Prevention by good sanitation and use of pathogen free plants, cultural practices by avoiding injuries on plants and overwatering, by removing distorted plant tissue




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