Copyright © International Seed Federation


Report an error

Entry for which you wish to report an error

Species Lactuca sativa
Crop Lettuce
Pest Scientific Name Bremia lactucae
Additional Info
Complementary Info
Type Fungus
Pest Classification Is seed a pathway in this crop? Pathway not proven
Main literature references 6-9, 6-16, 6-46, 6-53
Remarks B. lactuca is the causal agent of downy mildew of lettuce. Sources suggest that seed can be a pathway, however, no references found with data to support seed as a pathway. Lettuce seed lots are usually produced in dry climates, unfavorable to the development of Bremia. A quality systems approach in production of the seeds by crop inspections should reduce the chances of seed contamination.
Detection Is there a seed test? No
If yes, type of test
Main literature references
Remarks No references found indicating a seed test exists for B. lactucae on lettuce.
Risk mitigation Can the pest be managed by seed treatment(s)? Yes
If yes, what type(s) Chemical (seed coating)
Main literature references 6-20
Remarks Seed treatment with fungicides is effective against the fungus.

Your comments

Your personal data

First Name
Zip Code

A copy of your report will be sent to you.