aster yellows


Also found in: Encyclopedia, Wikipedia.

aster yellows

pl.n. (used with a sing. verb)
A widespread disease of plants caused by a phytoplasma, usually resulting in stunted growth and yellowing of infected individuals.
References in periodicals archive ?
Among the 'technique' contributions are entomopathogenic nematodes, entomopathogenic fungi, cover crops, aster yellows detection, volatile organic compounds, features of glucosinolates, herbicide resistant plants, and pollination.
Leafhopper feeding causes light damage, but leaflaoppers can spread aster yellows, a disease caused by a tumor-forming bacterium sometimes present in otherwise healthy soils.
One phytoplasma was identified as a member of the aster yellows group (l6SrI), the other was associated with the peach X-disease group (l6SrIII).