Related by context. Frequent words. (Click for all words.) 66 mountain pine beetles 65 bark beetle 64 pine beetles 63 beetle infestation 62 lodgepole 62 bark beetles 61 pine beetle infestation 61 adelgid 61 pine beetle 61 Gypsy moths 60 invasive insect 59 mountain pine beetle 59 insect infestations 59 Sudden Oak 59 lodgepole pine 59 Phytophthora 59 White Nose Syndrome 59 Mountain Pine Beetle 58 adelgids 58 Emerald ash borer 58 hemlock woolly adelgid 57 spotted knapweed 57 beetle 57 Infestations 56 oak wilt 56 pine beetle epidemic 56 fireweed 56 lodgepole pines 56 amphibian populations 56 hemlock trees 55 sawfly 55 jack pine 55 temperate zones 55 insect infestation 55 cankers 55 Mormon crickets 55 chytrid fungus 55 aspen trees 55 anthracnose 55 aspen 54 loosestrife 54 dieback 54 fungal disease 54 Invasive species 54 bark beetle infestation 54 species 53 insect pests 53 temperate forests 53 temperate regions 53 insect borne diseases 53 Bighorn sheep 53 buffelgrass 53 leafy spurge 53 beetles 53 knapweed 53 fungus 53 conifer trees 53 pine plantations 52 invasive weed 52 ponderosa 52 emerald ash borers 52 invasive pests 52 hickories 52 Canker 52 grassland birds 52 conifers 52 forbs 52 varroa mites 52 insect populations 52 sequoias 52 whitefly 52 knotweed 52 saltcedar 51 Phragmites 51 gypsy moth caterpillars 51 cheatgrass 51 boreal forests 51 purple loosestrife 51 lichen 51 tamarisk 51 bee populations 51 potato blight 51 whitebark pine 51 feral pigs 51 conifer 51 mealybugs 51 Poison ivy 51 anaplasmosis 51 catastrophic wildfires 51 hemlocks 51 sagebrush habitat 50 Feral hogs 50 woody plants 50 invasive species 50 Aphids 50 soybean aphid 50 overhunting 50 winterkill 50 Tularemia 50 eucalypts 50 invasives