Click on a state for more information on quarantines and local resources for thousand cankers disease.
Thousand Cankers Disease Survey Status
Source: National Agricultural Pest Information System
2014 Thousand Cankers Disease Trap Survey Map
Source: National Agricultural Pest Information System
2013 Thousand Cankers Disease Trap Survey Map
Source: National Agricultural Pest Information System
US Forest Service Forest Insect and Disease Reporting Portal
Source: US Forest Service
All of these maps come from the United States Geological Survey.
Juglans californica – Southern California black walnut (PDF)
Juglans cinerea – butternut (PDF)
Juglans hindsii – Northern California walnut (PDF)
Juglans major – Arizona walnut (PDF)
Juglans microcarpa – little walnut (PDF)
Juglans nigra – black walnut (PDF)