Coneflower Calamities: Round 3
Stunted and deformed coneflower plants are symptoms of Aster Yellows. Of the three coneflower problems I'm presenting in this series, Aster Yellows is the most serious and its control requires the most extreme measures. This is a serious, chronic disease that occurs throughout North America and may affect over 300 species of plants in 38 families including a number of vegetables such as carrots and potatoes. However, as its common name implies, the disease most occurs on members of the aster family (Asteraceae (= Compositae); coneflowers appear to be particularly susceptible.
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