Head twisting from aster yellows infection on lettuce
Aster yellows is a disease caused by Aster yellows phytoplasma[1] affecting several genera of herbaceous plants, primarily in the Aster family.
Symptoms[]
It can cause phyllody, yellowing, stunting, loss of pigmentation in or sterility of flowers, and necrosis.
Treatment[]
No treatment is available to save a plant infected with aster yellows. It is best managed by removing infected plants from the garden to minimize spread.[2]
Prevention[]
Management of the insect vector is not usually feasible in a home garden.[2]
Examples[]
References[]
- ↑ Bai et al. Living with genome instability: the adaptation of phytoplasmas to diverse environments of their insect and plant hosts. J. Bacteriol. 2006 May;188(10):3682-96.
- ↑ a b Engelbrecht, C . (2006). Aster Yellows. Horticulture & Home Pest News. p103-104. IC-495(22).
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| Adverse conditions | Bolting · Bruising · Manganese deficiency |
| Diseases | Aster yellows · Bacterial soft rot · Centre rot · Black mould · Damping off · Downey mildew · Fusarium basal rot · Neck rot · Onion smudge · Onion smut · Onion white rot · Pink root of onion · Purple blotch · Rust · Sour skin · Stemphylium leaf blight · Xanthomonas leaf blight of onion |
| Pests | Cutworm · Leaf miner · Leek moth · Stem and bulb nematode · Thrips · Wireworm |