Related by context. Frequent words. (Click for all words.) 67 mountain pine beetles 63 invasive insect 62 Gypsy moths 62 bark beetle 61 Mountain Pine Beetle 61 pine beetles 60 beetle infestation 59 beetle 59 mountain pine beetle 59 pine beetle 59 Emerald ash borer 59 hemlock woolly adelgid 58 Sudden Oak 58 adelgids 57 fungal disease 57 pine beetle infestation 57 Phytophthora 57 White Nose Syndrome 56 lodgepole 56 bark beetles 56 fungus 56 anthracnose 56 adelgid 56 oak wilt 55 lodgepole pine 55 Infestations 55 sawfly 55 spotted knapweed 54 gypsy moth caterpillars 54 hogweed 54 lodgepole pines 54 chytrid fungus 54 beetles 54 fireweed 54 cankers 54 pine beetle epidemic 53 downy mildew 53 insect infestations 53 hemlock trees 53 knapweed 53 invasive weed 53 Dutch elm disease 53 dieback 52 Chronic wasting disease 52 Hantavirus 52 amphibian populations 52 feral pigs 52 emerald ash borers 52 varroa mites 51 whitefly 51 jack pine 51 leafy spurge 51 insect pests 51 Soybean rust 51 gypsy moth 51 Feral hogs 51 insect pest 51 mealy bug 51 bark beetle infestation 51 defoliate 51 mealybugs 51 Canker 51 Tularemia 51 Hydrilla 51 Africanized honeybees 50 invasive pest 50 insect 50 mosquito borne virus 50 saltcedar 50 armyworms 50 canine distemper 50 purple loosestrife 50 aspen 50 soybean aphid 50 loosestrife 50 Aphids 50 varroa mite 50 whiteflies 50 Phragmites 50 gypsy moths 50 Asian longhorned beetle 50 Didymo 50 grassland habitat 49 Bighorn sheep 49 defoliated 49 infestation 49 ash borer 49 Invasive species 49 melaleuca 49 aphid 49 fungal spores 49 pathogen 49 fungi 49 invasive weeds 49 Japanese knotweed 49 feral pig 49 insect populations 49 tiger mosquito 49 tailed deer 49 hemlocks 49 forbs