Related by context. Frequent words. (Click for all words.) 66 beetle infestation 66 Phytophthora 66 mountain pine beetles 65 adelgid 64 adelgids 63 lodgepole 63 jack pine 63 lodgepole pine 63 Gypsy moths 62 pine beetles 62 fungal disease 62 bark beetle 62 hemlock trees 61 anthracnose 61 knapweed 61 downy mildew 60 spotted knapweed 60 bark beetles 60 gypsy moth caterpillars 60 aspen 60 lodgepole pines 60 loosestrife 60 oak wilt 60 fungus 60 beetle 59 woody plants 59 fireweed 59 amphibian populations 59 hemlock woolly adelgid 59 defoliate 59 aspen trees 59 forbs 59 hickories 59 beetles 59 Emerald ash borer 58 insect pest 58 insect infestations 58 Bt crops 58 leafy spurge 58 ponderosa 58 mealybugs 58 grassland habitat 58 bollworm 58 hemlocks 58 bee populations 57 Sudden Oak 57 purple loosestrife 57 conifers 57 lichen 57 mealy bug 57 Scotch broom 57 invasive weed 57 defoliation 57 Bt toxin 57 species 57 cheatgrass 57 fungi 57 pine beetle infestation 56 grassland birds 56 conifer trees 56 mountain pine beetle 56 insect populations 56 insect pests 56 dieback 56 pine beetle 56 Ponderosa pine 56 phylloxera 56 fungal spores 56 saltcedar 56 cankers 56 defoliated 56 understory 56 Phragmites 56 bark beetle infestation 56 hackberry 56 temperate forests 56 vetch 56 knotweed 56 hardwood trees 56 spp 56 lowland forests 56 fungal pathogens 55 soybean aphid 55 oak woodlands 55 bagworms 55 Fungal 55 melaleuca 55 Mountain Pine Beetle 55 Dutch elm disease 55 aphid 55 borers 55 nematodes 55 rootworm 55 root rot 55 insect 55 Aphids 55 spider mites 55 Japanese knotweed 55 whitefly 55 whiteflies 55 boreal forests