NDR Dictionary Updates
Clarissa Balbalian (Vice Chair, National Data Committee)
The Communicator: Volume 7, Issue 3, April 2026
The following lists document additions, modifications and deletions to the National Data Repository (NDR) Host and Pest dictionaries that were implemented in March 2026. 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
Mediterranean grass (Scismus barbatus)
Modified hosts
Leafhoppers (Family Cicadellidae)
Slim Amaranth; Smooth Pigweed (Amaranthus hybridus)
Hybrid Snapdragon (Antirrhinum sp./spp.)
Columbine (Aquilegia viridiflora)
Hybrid Aster (Aster sp./spp.)
Hybrid Orchid (x Brassolaeliocattleya sp./spp.)
Hybrid Boxwood (Buxus sp./spp.)
Canna Lily (Canna x hybrida)
Hybrid Chrysanthemum (Chrysanthemum sp./spp.)
Malayan kumquat (Citrus x swinglei)
Citrange (Citrus x insitorum)
Mule Palm (x Butyagrus x nabonnandii)
Shipova (x Pyraria irregularis)
Candy Lily (Iris x norrisii)
Sweetshrub; Raulston’s Allspice (Calycanthus x raulstonii)
Citrangequat (Citrus x georgiana)
Limequat (Citrus x floridana)
Meyer Lemon (Citrus x limon)
Hybrid Gladiolus (Gladiolus sp./spp.)
Hybrid Japanese Pieris (Pieris japonica)
Pitlolly Pine (Pinus rigida x taeda)
Dalechamps Oak (Quercus dalechampii)
Hybrid Yew; Anglojap Yew (Taxus x media)
Hybrid Pansy (Viola x wittrockiana)
Hybrid Orchid (x Odontobrassia sp./spp)
Hybrid Orchid (x Vuylstekeara sp./spp.)
Hybrid Zinnia (Zinnia sp./spp.)
Hybrid Strawberry Tree; Madrone (Arbutus x andrachnoides)
Hybrid Manzanita (Arctostaphylos x coloradensis)
Rieger Begonia; Elatior Begonia (Begonia x hiemalis)
Angel's Trumpet (Brugmansia x candida)
Angel's Trumpet (Brugmansia insignis)
Rainbow Shower Tree (Cassia x nealiae)
Leather Flower; Jackman's Clematis (Clematis x jackmanii)
Australian Fuchsia (Correa sp./spp.)
Ashwagandha (Withania somnifera)
Butterfly Bush; Summer Lilac (Buddleja davidii)
Cape Fuchsia (Phygelius sp./spp.)
Deleted hosts*
None
Pest dictionary updates
New pest codes
Relampago blight (Parvodontia relampaga)
Boxelder bug (Boisea sp./spp.)
Bog-reed scale (Chaetococcus phragmitis)
Giant Vietnamese centipede (Scolopendra dehaani)
Unspecified pathology (Penicillium sp./spp.)
Ambrosia beetle (Ambrosiophilus osumiensis)
Leaf spot (Gloeosporidiella falcata)
Unspecified pathology (Paraphomopsis obscurans)
Cyclorrhaphous fly (Cyclorrhapha sp./spp.)
Wedge-shaped bark weevils (Magdalis sp./spp.)
Modified pest codes
Cecidomyiid (Primavera porrecta)
Downy mildew (Bremia lactucae)
Downy mildew (Unidentified Oomycete)
Downy mildew (Hyaloperonospora sp./spp.)
Sooty blotch Flyspeck complex (Geastrumia polystigmatis)
Sooty blotch Flyspeck complex (Stomiopeltis sp./spp.)
Sooty blotch Flyspeck complex (Gloeodes pomigena)
Sooty blotch Flyspeck complex (Schizothyrium pomi)
Black root rot (Idriella lunata)
Black root rot (Pilidium lythri)
Citrus psorosis complex; Scaly bark (Ophiovirus citri)
Hickory shoot curculio (Conotrachelus aratus)
Corn blotch leafminer (Agromyza parvicornis)
Grass sheathminer fly (Cerodontha dorsalis)
Serpentine leafminer (Liriomyza brassicae)
Chinch bug (Blissus sp./spp.)
Cotton stainer (Dysdercus sp./spp.)
Pyralid moth (Ephestia sp./spp.)
Fusarium foliar blight (Fusarium sp./spp.)
Fusarium head blight; scab (Fusarium sp./spp.)
Fusarium crown rot; collar rot (Fusarium sp./spp.)
Damping off; seedling blight (Fusarium sp./spp.)
Fusarium stalk rot; stem rot (Fusarium sp./spp.)
Fusarium crown and root rot (Fusarium sp./spp.)
Fusarium dry rot; bulb rot; tuber rot (Fusarium sp./spp.)
Fusarium crown and stem rot (Fusarium sp./spp.)
Bird damage (Vertebrate damage)
Vertebrate damage (Vertebrate damage)
Bird damage (Vertebrate damage)
Marshmallow polypore; Heart rot (Marshmallow polypore; Heart rot)
Canker; Dieback (Cytospora kunzei)
Asiatic garden beetle (Maladera formosae)
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.
