Dahlia: Virus

categories: Bulbs Dahlia Dahlia Diseases Ornamentals

revision date: 2022-09-15 01:22

Dahlia mosaic virus.
Dahlia mosaic virus symptoms
Photo by: R.S. Byther


Tomato spotted wilt virus (thrips vector) induces a yellow-green mosaic, irregular concentric rings, or even wavy-lines in older leaves. Dahlia mosaic virus (aphid vector) produces chlorosis along veins and may shorten internodes, facilitating a stunted or bushy appearance. The tomato-ringspot-related virus (probably nematode vector) produces necrotic patches and marginal necrosis on the leaf blade.

Management Options

Use Integrated Pest Management (IPM) for successful plant problem management.

Non-chemical Management

Select non-chemical management options as your first choice!

  • Select and plant only virus-tested (and found to be free of all known viruses) stock.
  • Destroy affected plants
  • Control thrips and aphids which serve as vectors for virus spread.

Chemical Management

IMPORTANT: Visit Home and Garden Fact Sheets for more information on using pesticides.

None recommended

Additional Images