The Aster yellows disease is caused by the aster yellows phytoplasma (AYP) which is a phloem-limited, bacterium-like organism and is vectored by the aster leafhopper, Macrosteles quadrilineatus, a phloem-feeding insect of the order Hemiptera.
Aster | Aster (genus) | Aster tripolium | Aster Ganno | aster | Richard C. Aster | aster (genus) | ASTER | Mined leaves of ''Aster bellidiastrum | Mined leaf of ''Aster tripolium | ASTER image of Rub' al Khali | Aster Aweke | Aster (auto parts company) | Aster amellus |