NDR Dictionary Updates
Clarissa Balbalian (Vice Chair, National Data Committee)
The Communicator: Volume 7, Issue 1, February 2026
The following lists document additions, modifications and deletions to the National Data Repository (NDR) Host and Pest dictionaries that were implemented in November. You can view updates to the NPDN host and pest dictionaries any time by logging into NDR clicking on the Dictionaries tab, selecting the Change Request 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
Mexican oregano; Rosemary mint (Poliomintha longiflora)
Yellow cestrum; Juiced orange (Cestrum corymbosum)
Crassula; Stone crop (Crassula mesembryanthemoides)
Tropical white trumpet (Osa pulchra)
Canary Island spurge (Euphorbia canariensis)
False Indigo bush (Amorpha fructicosa)
Kalm's St. John's wort (Hypericum kalmianum)
Wild Mint (Mentha arvensis)
Red box (Eucalyptus polyanthemos)
Dwarf fireweed (Chamaenerion latifolium)
Woolly cranesbill (Geranium erianthum)
Spatterdock (Nuphar advena)
Mondell pine (Pinus eldarica)
Turk's Cap Cactus (Melocactus zehntneri)
Mexican/netleaf white oak (Quercus polymorpha)
Parasol whitetop/flat-topped aster (Doellingeria umbellata)
Sheath-covered spathe robiquetia (Robiquetia spathulata)
Large-leaved linden (Tilia platyphyllos)
Elegant clarkia (Clarkia unguiculata)
Labrador Tea (Rhododendron groenlandicum)
Einkorn (Triticum monococcum)
Caucasian spinach (Hablitzia tamnoides)
Alaska birch (Betula neoalaskana)
Mountain tansymustard (Descurainia incana)
Ware's oak (Quercus x warei)
Hawkins' oak (Quercus x hawkinsiae)
Siberian larch (Larix sibirica)
Modified hosts
Fireweed (Chamaenerion angustifolium)
Banana Shrub (Magnolia figo)
Deleted hosts*
None
Pest dictionary updates
New pest codes
Dotted paropsine leaf beetle (Paropsis atomaria)
Aroid leaf rust (Pseudocerradoa paullula)
Root rot (Thelonectria sp./spp)
Tomato chlorotic spot virus (Orthotospovirus tomatoflavitomatoflavi)
Aphelinid wasp (Encarsia citrina)
Honeysuckle moth (Ypsolopha dentelle)
Vine leafhopper (Erythroneura vitifex)
Desert harvester ant (Pogonomyrmex rugosus)
Kiwifruit trunk disease (Various Fungi)
Eurasian woolly honeysuckle aphid (Prociphilus xylostei)
Fruitworm moth (Lotisma trigonana)
Sawfly (Dineura militaris)
Late birch leaf edgeminer (Heterarthrus nemoratus)
Amber-marked birch leafminer (Profenusa thomsoni)
Modified pest codes
Royal palm bug (Xylastodoris luteolus)
Rose Mosaic (Various viruses)
Rose mosaic (PNRSV) (Ilarvirus Prunus Necrotic Ringspot Virus)
Rose mosaic (ApMV) (Ilarvirus Apple Mosaic Virus)
Pyramid ant (Dorymyrmex sp./spp.)
Stem rot (Nakataea oryzae)
Vine leafhopper (Erythroneura vitifex)
Aphelinid wasp (Family Aphelinidae)
Tiger Bee fly (Xenox tigrinus)
Snow mold (Microdochium nivale)
Plectosporium blight (Plectosphaerella sp./spp)
Imported currantworm (Euura ribesii)
Bollworm; Corn earworm (Helicoverpa zea)
Almond moth (Cadra cautella)
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.
