North Dakota
23 active alerts in this region
TreeIssues monitors plant and tree health threats across North Dakota. Below you will find current alerts for pests, diseases, fungi, and invasive species that have been detected in the state. Alerts are sourced from USDA, USFS, and North Dakota state agricultural agencies. Each alert includes severity ratings, affected species, symptoms, and recommended treatments.
Dutch Elm Disease
CRITICALA devastating vascular wilt disease spread by elm bark beetles that has killed millions of American elms since the 1930s. The fungus blocks water-conducting vessels, causing rapid wilting. It fundamentally changed the American urban landscape.
Affecting 45 regions
Emerald Ash Borer
MODERATEAn invasive wood-boring beetle native to Asia that has killed hundreds of millions of ash trees across North America since its discovery in Michigan in 2002. Larvae feed on the inner bark, disrupting nutrient and water transport.
Affecting 36 regions
Asian Longhorned Beetle Damages hardwood trees by tunneling deep into trunks and branches
MODERATEAsian Longhorned Beetle Damages hardwood trees by tunneling deep into trunks and branches - identified by USDA APHIS as a pest threat.
Affecting 50 regions
Vashti Sphinx
MODERATEVashti Sphinx observed in the wild. Research-grade iNaturalist observation.
Affecting 1 region
Western Conifer Seed Bug
MODERATEGlobal is over and want to continue including drawings just for regular observations with photo as primary. Is this permitted in non- project observations?
Affecting 18 regions
Red-banded Leafhopper
MODERATESpent pretty much all day today at the car dealership to get a new vehicle -- sooo, I missed out on a park visit. Anywho, I put up the blacklights in the backyard to see some local bugs. :)
Affecting 26 regions
Wood-colored Apamea Moth
MODERATEWood-colored Apamea Moth observed in the wild. Research-grade iNaturalist observation.
Affecting 1 region
Two-spotted Stink Bug
MODERATETwo-spotted Stink Bug observed in the wild. Research-grade iNaturalist observation.
Affecting 3 regions
Alfalfa Plant Bug
MODERATEAlfalfa Plant Bug observed in the wild. Research-grade iNaturalist observation.
Affecting 14 regions
Poplar-and-Willow Borer
MODERATEPoplar-and-Willow Borer observed in the wild. Research-grade iNaturalist observation.
Affecting 3 regions
Yellow-collared Scape Moth
MODERATEYellow-collared Scape Moth observed in the wild. Research-grade iNaturalist observation.
Affecting 18 regions
Waved Sphinx
MODERATEWaved Sphinx observed in the wild. Research-grade iNaturalist observation.
Affecting 24 regions
Asian Lady Beetle
MODERATEFound alive but in terrible shape. Was swimming around in the water bowl we put out for feral cats here. Also appeared to have had a run in with a spider web, as it had something stuck all over it. Got a lot of suggestions for fungi and parasitoids that target ladybeetles, so maybe its appearance is more a function of a disease or parasite process taking place. It was definitely having trouble getting adound, but could be due to having been in the water for a long time and/or having bits of web
Affecting 41 regions
Pink Underwing
MODERATEPink Underwing observed in the wild. Research-grade iNaturalist observation.
Affecting 2 regions
Black Blister Beetle
MODERATEBlack Blister Beetle observed in the wild. Research-grade iNaturalist observation.
Affecting 6 regions
Large Milkweed Bug
MODERATECluster of black and orange insects on milkweed plant. Warm, near sunset, slightly overcast.
Affecting 35 regions
Mother Underwing Moth
MODERATEMother Underwing Moth observed in the wild. Research-grade iNaturalist observation.
Affecting 5 regions
Sweetheart Underwing
MODERATESweetheart Underwing observed in the wild. Research-grade iNaturalist observation.
Affecting 7 regions
Strawberry Root Weevil
MODERATEStrawberry Root Weevil observed in the wild. Research-grade iNaturalist observation.
Affecting 16 regions
Relict Rhinoceros Beetle
MODERATERelict Rhinoceros Beetle observed in the wild. Research-grade iNaturalist observation.
Affecting 14 regions
Herald Moth
MODERATEHerald Moth observed in the wild. Research-grade iNaturalist observation.
Affecting 3 regions
Black Swallowtail
MODERATEBlack Swallowtail observed in the wild. Research-grade iNaturalist observation.
Affecting 17 regions
Powdery Mildew
LOWA widespread group of fungal diseases that produce a distinctive white powdery coating on leaves and shoots. It affects hundreds of tree, shrub, and plant species. Unlike most fungi, it thrives in warm, dry conditions with high humidity.
Affecting 49 regions