Photo Gallery of Vegetable Problems – Coriander/Cilantro | Mount Vernon NW Washington Research & Extension Center

Diseases

Disease: Curly top
Pathogen: Various strains of Beet curly top virus (BCTV), which are vectored by the beet leafhopper (Circulifer tenellus)
Host crops: Numerous plant species including many vegetables such as bean, beet, carrot,eggplant, coriander, pepper, potato, tomato, various cucurbits such as squash, cucumber,pumpkin, watermelon, etc.


	Symptoms of curly top in a coriander seed crop including stunting, purpling/yellowing of the foliage, and death of plants.
Photo Source: Lindsey du Toit, Washington State University Plant Pathologist

Symptoms of curly top in a coriander seed crop including stunting, purpling/yellowing of the foliage, and death of plants.

Photo Source: Lindsey du Toit,
Washington State University

On-Line Resources:

Pacific Northwest Plant Disease Management Handbook: Bean, All (Phaseolus vulgaris) – Curly Top

Nematodes

Disease: Root knot
Nematode: Meloidogyne species
Host crops: Numerous plant species, including many vegetables such as carrot, coriander, onion, potato, etc.

Patches of stunted plants in a coriander seed crop caused by root knot nematode. Variation in degree of stunting caused by root knot nematode in a coriander seed crop. Coriander seedlings showing various degrees of dieback and root galling from root knot nematode.
Photo Source: Lindsey du Toit, Washington State University

Swollen, galled roots of coriander plants caused by the root knot nematode.

Photo Source: Lindsey du Toit,
Washington State University

On-Line Resources:

Pacific Northwest Plant Disease Management Handbook: Carrot (Daucus carota) – Nematode, Root-knot

Pacific Northwest Plant Disease Management Handbook: Nematodes

Cilantro Production in California. Vegetable Production Series, UC Vegetable Research & Information Center

See Diseases, pests, and other problems common to many vegetables: Root knot