Related by context. Frequent words. (Click for all words.) 61 pine beetle 61 mountain pine beetles 60 pine beetles 59 beetle infestation 55 bark beetle 53 mountain pine beetle 51 bark beetle infestation 50 clearcutting 50 beetle 50 lodgepole pine 50 ash borer 49 boreal 49 invasive weeds 49 boreal forest 49 boreal forests 48 invasive weed 48 Soybean rust 48 forest fires 48 bark beetles 48 Invasive species 48 aspen trees 48 mosquito borne virus 47 fungal disease 47 timber harvests 47 prairies 47 feral pigs 47 Hantavirus 47 invasive species 47 gypsy moths 47 emerald ash borer 47 gypsy moth 47 lodgepole pines 47 wildfire 46 Emerald Ash Borer 46 prairie 46 insect infestations 46 wildfires 46 wildland fires 46 fungus 46 noxious weed 45 aspen 45 infestations 45 tick borne diseases 45 blowdown 45 trumpeter swans 45 catastrophic wildfires 45 infestation 45 beetles 45 tallgrass prairie 45 timber harvest 45 hantavirus 45 Asian longhorned beetle 45 forest ecosystems 45 knapweed 45 noxious weeds 44 milder winters 44 Asian soybean rust 44 foresters 44 Bovine TB 44 warmer winters 44 cougar sightings 44 insect infestation 44 wildland urban interface 44 invasives 44 West Nile virus 44 Forest Service 44 Great Dismal Swamp 43 winterkill 43 ash trees 43 root rot 43 pine forests 43 prolonged drought 43 wildland fire 43 bison 43 chronic wasting 43 CWD 43 wild hogs 43 deer herds 43 mumps outbreak 43 forestry 43 salvage logging 43 feral hogs 43 defoliation 43 Severe drought 43 cattle herds 43 spruce trees 43 hardwood forests 43 cheatgrass 43 bee populations 42 insect pest 42 Alberta tar sands 42 whitetail deer 42 ponderosa pines 42 varroa mite 42 deer herd 42 groundwater contamination 42 purple loosestrife 42 wetland habitat 42 hemlocks 42 wildlife biologists 42 elk