NDR Dictionary Updates

Clarissa Balbalian (Chair, National Data Committee)
The Communicator: Volume 6, Issue 5, May 2025

The following lists document additions, modifications and deletions to the National Data Repository (NDR) Host and Pest dictionaries that were implemented in March. You can view updates to the NPDN host and pest dictionaries any time by logging into NDR clicking on the Dictionaries tab and selecting Updates from the dropdown menu.

A guideline to understanding data dictionaries in the NDR is available to NPDN members online. NPDN members also have access to an online guideline on how to request new host/pest codes or changes  to existing codes. Members must be logged in to access the NDR and the guidelines.

Entries below are listed alphabetically by common name followed by the scientific name appearing in parentheses.

Host Dictionary Updates

New Host Additions

White laceflower (Orlaya grandiflora)

Modified Hosts

Small-leaf spiderwort (Tradescantia fluminensis)
Silver inch plant (Tradescantia zebrina)
Nalta jute (Corchorus olitorius)
Ferns (Clas Polypodiopsida)

Deleted Hosts*

None

Pest Dictionary Updates

New Pest Codes

None

Modified Pest Codes

Mygalomorph Spider (Infraorder Mygalomorphae)
Pale Indian plantain (Cacalia atriplicifolia)

Deleted Pest Codes*

None

*The NPDN does not delete any data. Deletion means that as of the date of the change, that host or pest code is no longer viable and the choice has been eliminated from the NDR host and/or pest dictionary.