National Forest Damage Agent Range Maps
The maps are an integration of various sources, reviewed by regional authorities. For major forest damage causing insects and diseases, they display a historical record of county-level detections, highlighting the past three years of activity. For exotic insect or disease threats where rate of recent range expansion is of prime interest, the maps show a 3-year history of first -ever detection counties for that damage agent. Both ‘recent damage detection’ and ‘recent range expansion’ maps are annually updated each spring.
| Damage Agent Common Name | Damage Agent Scientific Name |
|---|---|
| Balsam woolly adelgid | Adelges piceae |
| Balsam woolly adelgid (Alaska) | Adelges piceae |
| Beech leaf disease | Beech leaf disease |
| Black stain root disease summary | black stain root disease summary |
| Browntail moth | Euproctis chrysorrhoea |
| Emerald ash borer | Agrilus planipennis |
| Goldspotted oak borer | Agrilus auroguttatus |
| Laurel wilt | Raffaelea lauricola |
| Polyphagous Shot Hole Borer | Euwallacea nov. sp. |
| Red pine scale | Matsucoccus resinosae |
| Thousand cankers disease | Geosmithia morbida |
| Damage Agent Common Name | Damage Agent Scientific Name |
|---|---|
| Armillaria root disease | Armillaria spp. |
| Armillaria root disease (Alaska) | Armillaria spp. |
| Aspen leafminer | Phyllocnistis populiella |
| Aspen leafminer (Alaska) | Phyllocnistis populiella |
| Beech bark disease complex | Beech bark disease complex |
| Douglas-fir beetle | Dendroctonus pseudotsugae |
| Fir engraver | Scolytus ventralis |
| Forest tent caterpillar | Malacosoma disstria |
| Hemlock woolly adelgid | Adelges tsugae |
| Heterobasidion Root Disease Summary | Heterobasidion Root Disease Summary |
| Heterobasidion Root Disease Summary (Alaska) | Heterobasidion Root Disease Summary |
| Jack pine budworm | Choristoneura pinus |
| Jeffrey pine beetle | Dendroctonus jeffreyi |
| LargeAspenTortrix | Choristoneura conflictana |
| LargeAspenTortrix (Alaska) | Choristoneura conflictana |
| Mountain pine beetle | Mountain pine beetle |
| Northern spruce engraver | Ips perturbatus |
| Northern spruce engraver (Alaska) | Ips perturbatus |
| Oak wilt | Ceratocystis fagacearum |
| Rapid ‘Ōhi‘a death | Ceratocystis spp. |
| Southern pine beetle | Dendroctonus frontalis |
| Spongy moth | Lymantria dispar dispar |
| Spruce beetle | Dendroctonus rufipennis |
| Spruce beetle (Alaska) | Dendroctonus rufipennis |
| Spruce budworm | Choristoneura fumiferana |
| Spruce budworm (Alaska) | Choristoneura fumiferana |
| Western pine beetle | Dendroctonus brevicomis |
| Western spruce budworm | Choristoneura occidentalis |
| White pine blister rust | Cronartium ribicola |
| Winter Moth | Operophtera brumata |
| Yellow-cedar decline (Alaska) | Yellow-cedar decline |
| Armillaria root disease | Armillaria spp. |