Aster Yellows
Phytoplasma

• Leaves are small and yellow on a few to all stems
• Flowers are small pale green to white and underdeveloped
• Clumps of weak shoots known as witches broom develop throughout the plant
• Infected plants are often stunted
• Often one to a few random plants within a flower bed are infected while others remain healthy
• More information on Aster Yellows