Ditylenchus dipsaci
stem and bulb nematode
Anguillula devastatrix, Anguillula dipsaci, Anguillula secalis, Anguillulina dipsaci,Anguillulina dipsaci var. communis, Ditylenchus allocotus, Ditylenchus amsinckiae, Ditylenchus dipsaci var. tobaensis, Ditylenchus fragariae,Ditylenchus sonchophila, Ditylenchus trifolii, Tylenchus allii Tylenchus devastator, Tylenchus devastatrix
Tylenchus dipsaci, Tylenchus havensteini, Tylenchus hyacinthi, Tylenchus putrefaciens
Worldwide in temperate climates.
Widespread
2023-05-05
nematode
Brazil
Ditylenchus dipsaci is known to attack over 450 different plant species, including many weeds. There are approximately 20 biological races known that tend to prefer certain hosts.
DITYDI
13 Known Hosts
Allium cepa
onion
Yes
DITYDI-3, DITYDI-5, ISFRPLD
Seed is known to be a pathway.
Yes
Sieve Method
Used for research. This method has not been standardized or validated.
CABICPC
Seed fumigation
Crop rotation with non-hosts and fumigation most effective. Quality seed production practices with inspection.
DITYDI-3, ISFRPLD
Avena sativa
oat
No
DITYDI-1, DITYDI-6
Pathway not proven. Though one reference indicates infested seed were used in eradication experiments, there was no information on how infested seeds were obtained. There were no other references found to verify seed pathway.
Yes
Sieve Method
Used for research. This method has not been standardized or validated.
CABICPC
Begonia spp.
begonia
No
CABICPC
No references found indicating seed is a pathway. Begonia can be infected by this nematode.
Beta vulgaris
table beet, swiss chard
No
DITYDI-1, DITYDI-3
Though seed has been listed as a pathway, references only list seed as a possible pathway without presenting data or seed was found infested in the laboratory. No evidence of a seed pathway under natural conditions was found.
Yes
Sieve method
Used for research. This method has not been standardized or validated.
DITYDI-3
Seed fumigation
Crop rotation with non-hosts and fumigation most effective
DITYDI-3
Cucurbitaceae family
cucumber, melon, squash, pumpkin, gord, watermelon
No
ISFRPLD
No references found indicating seed is a pathway. ISF RPLD does not consider cucumber, squash and pumpkin hosts.
Daucus carota
carrot
No
DITYDI-3, CABICPC, ISFRPLD
Pathway not proven. Though seed pathway was speculated (DITYDI-3), seed used for research was not cleaned and conditioned. Debris associated with the seed may have carried D. dipsaci.
Yes
Sieve method
Used for research. This method has not been standardized or validated.
DITYDI-3
Seed fumigation
Crop rotation with non-hosts and fumigation most effective
DITYDI-3
Medicago sativa
alfalfa
No
DITYDI-1, DITYDI-2, CABICPC
Pathway not proven. Research speculated seed transmission of Ditylenchus dipsaci in alfalfa based on field pattern, but live nematodes were not recovered from seed samples suspected of Ditylenchus dipsaci infestation. D. dipsaci is more commonly carried in plant debris associated with seed.
Yes
Sieve method
Used for research. This method has not been standardized or validated.
CABICPC
Fumigants (methyl idodide) Hot water treatments
Cleaning of seed effective in removing nematodes . Certification schemes also effective.
CABICPC, DITYDI-1
Phaseolus vulgaris
common bean
No
ISFRPLD, DITYDI-3
No references found indicating that seed of common bean is a pathway. Some references list seed of other species of Phaseolus as a pathway.
Phlox spp.
phlox
No
CABICPC, DITYDI-7
There is little evidence that Phlox. spp. is an important host of this pest, though it is often listed. There were no references found or evidence found indicating that seed is a pathway.
Pisum sativum
pea
Yes
DITYDI-3, CABICPC
Infestations found to be very low
Yes
Sieve method
Used for research. This method has not been standardized or validated.
DITYDI-3
Seed fumigation
Crop rotation with non-hosts and fumigation most effective
DITYDI-3
Solanum lycopersicum
tomato
No
ISFRPLD
Tomato is an uncommon host for this nematode. No references found indicating seed is a pathway
Zea mays
corn
No
ISFRPLD, DITYDI-6
Pathway not proven. Though one reference indicates infested seed were used in eradication experiments, there was no information on how infested seeds were obtained. There were no other references found to verify seed pathway.
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