Articles tagged as Aster Yellows
Preventing Aster Yellows|
By Clint Brown on June 7, 2010
Aster yellows is caused by a tiny organism called a phytoplasma. The phytoplasma is spread from plant to plant by leafhoppers, which feed on the sap of the plants. Since no treatment is available to save an infected Echinacea, Aster yellows is best managed by removing infected plants and controlling leafhopper populations.