Clarissa Balbalian (Chair, National Data Committee)
The Communicator: Volume 6, Issue 3, March 2025
The following lists document additions, modifications and deletions to the National Data Repository (NDR) Host and Pest dictionaries that were implemented in January. 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
African Milk Tree (Euphorbia trigona)
Jonquil (Narcissus jonquilla)
Lacy germander (Teucrium laciniatum)
Modified Hosts
None
Deleted Hosts*
None
Pest Dictionary Updates
New Pest Codes
Fig tree borer (Neoptychodes trilineatus)
Jewel oak gall wasp (Acraspis quercushirta)
Diapriid wasp (Family Diapriidae)
Cynipid gall wasp (Bassettia flavipes)
Cycas necrotic stunt (CNSV) (Nepovirus cycas)
Lilac leaf chlorosis (LLCV) (Ilarvirus Lilac leaf chlorosis virus)
Jasmine Virus H (JaVH) (Pelarspovirus jasmine)
Pear plant bug (Neolygus communis)
Armored scale (Diaspidiotus sp./spp.)
Canker (Camillea tinctor)
Leaf spot (Pseudocercospora physostegiae)
Soft rot (Pythium sp./spp.)
Blight; Dieback (Pilidium sp./spp.)
Saprophytic fungus (Corniculariella spina)
Needle blight (Rosellinia sp./spp.)
Powdery mildew (Erysiphe vignae)
Dollar spot (Clarireedia jacksonii)
Fungal saprophyte (Sebacina sp./spp.)
Fungal saprophyte (Myriococcum praecox)
Fungal saprophyte (Myriococcum sp./spp.)
Spruce cone rust (Rossmanomyces monesis)
Canker (Stegonsporium acerinum)
Taproot decline (Xylaria necrophora)
Leaf rust (Melampsoridium asiaticum)
Twig canker (Sporocadus lichenicola)
Bacterial wilt (Ralstonia pseudosolanacearum)
Modified Pest Codes
Leaf spot (Pseudocercospora physostegiae)
Tapeworms (Class Cestoda)
Eriophyid mite (Aceria sp./spp.)
Parasitic Lice (Order Psocodea)
Webspinners (Family Teratembiidae)
Spruce sawflies (Superfamily Tenthredinoidea)
Encyrtid parasitic wasp (Eretmocerus sp./spp.)
Leaftiers (Order Lepidoptera)
Loopers (Order Lepidoptera)
Wood cockroach (Parcoblatta sp./spp.)
Viviparous snails (Family Viviparidae)
Cellar spiders (Family Pholcidae)
Helicid and hygromiid snails (Superfamily Helicoidea)
Purple leaf sheath (Unidentified fungus)
Fungal saprophyte (Myriococcum sp./spp.)
Mygalomorph Spider (Infraorder Mygalomorphae)
Bacterial wilt (Ralstonia pseudosolanacearum)
Deleted Pest Codes*
Tobacco rosette (Tobacco Vein-distorting Virus TVDV; TMOV)
Maize mottle chlorotic stunt (Maize Mottle/Chlorotic Stunt Virus)
*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.
