Alfalfa mosaic virus

virus

Alfalfa virus 1 and 2, Lucerne mosaic virus, Marmor medicaginis, Potato calico virus, Tomato necrotic tip curl, Alfalfa yellow spot

Worldwide

Widespread

Sudan, Mexico

2022-09-13

Wide host range

No

AMV000-1,

CABI only verifies this crop as a host. No references on seed as a pathway found.

AMV000-1,

Candidatus phytoplasma asteris

phytoplasma

Worldwide

Widespread

2021-11-15

AY phytoplasmas are not seed transmissable and seed is not a pathway in any host.

Wide host range, primarily herbaceous dicots, though strains infect monocots and woody ornamentals

No

PHY01-1,

Seed is not a pathway for AY phytoplasmas

PHY01-1,

Alternaria radicina

fungus

Macrosporium daucinum, Pseudostemphylium radicinum, Stemphylium radicinum, Thyrospora radicina

Worldwide

Widespread

Mexico

2022-09-22

This pathogen is not quaranted anywhere in the world. Not reported in MX

Only carrot is known to be a host of this pathogen

No

This is not a host for this pathogen

Alternaria dauci

fungus

Alternaria brassicae var. dauci, Alternaria porri f.sp. dauci, Alternaria carotae, Macrosporium dauci, Macrosporum carotae, Polydesmus exitiosus var. dauci, Sporidesmium exitiosum var. dauci

Worldwide

Widespread

Mexico

2021-08-26

This pathogen is not quaranted anywhere in the world (ALTEDA-1). This pathogen has been reported in MX.

The main host of Alternaria dauci. is carrot. Other umbielliferous crops are susceptible in nature, celery, parsley, parsnip. Other crops, cabbage, tomato, lettuce, radish and cucumber, were attacked in laboratory studies, but not considered natural hosts.

Yes

ALTEDA-5,

This reference established coriander seed as a potential pathway, though not common

ALTEDA-5,

Seed examination

ALTEDA-5,

This method has not been validated. Test methods for carrot seed are commonly applied to coriander seed.

Thiram and Iprodione

ALTEDA-5,

Xanthomonas hortorum pv. carotae

bacterium

Bacterium carotae, Phytomonas carotae, Pseudomonas carotae, Xanthomonas campestris pv. carotae, Xanthomonas carotae

Worldwide

Widespread

Mexico

2022-10-11

The period from infection of plant tissue to symptoms is usually short, under favorable conditions. This period may increase when conditions are not favorable, with genetic resistance, other disease or pest pressure, or physiological stress. Symptoms may also be inconspicuous, masked, or atypical under similar conditions or stress. When symptoms are present, confirm the causal agent with laboratory diagnoses. Prolonged periods of latency resulting in asymptotic plants has not been documented for this pathogen. Literature showing that random sampling of apparently healthy plants to detect latent populations of this pathogen has not been found.

carrot, coriander

No

XANTCR-6,

Pathway not proven. One reference lists seed as a possible pathway for this crop, but no data presented and no reference to any data provided. Seed transmission may be inferred.

XANTCR-6,

The standard seed wash protocol for carrot seed may be used in some laboratories, but no references found indicating this method works for coriander.