Related by context. Frequent words. (Click for all words.) 70 insect infestation 63 pests 62 insect pests 58 infestations 58 bark beetle 58 beetle infestation 57 insect pest 57 bark beetles 57 root rot 57 powdery mildew 55 fungal diseases 54 pine beetles 54 cheatgrass 54 pest 53 mountain pine beetles 53 vegetation 53 Pests 53 spider mites 53 invasive weeds 53 nutrient deficiencies 53 insects 52 catastrophic wildfires 52 insect populations 52 fungus 52 carpenter ants 52 bark beetle infestation 52 insect 52 knapweed 52 overgrazing 51 Japanese knotweed 51 woody plants 51 mildew 51 infestation 51 whitefly 50 invasive species 50 Aphids 50 pine beetle 50 rodents 50 fungal disease 50 lodgepole pine 50 fungi 50 forbs 50 forest fires 50 overwatering 50 dieback 49 noxious weeds 49 soil erosion 49 mosquito populations 49 crabgrass 49 weeds 49 knotweed 49 beetles 49 mites 49 termites 48 biting insects 48 noxious weed 48 rodent infestation 48 invasive weed 48 winterkill 48 mountain pine beetle 48 defoliation 48 nematodes 48 grasses 48 invasive pest 48 overgrown vegetation 48 vermin 48 beetle 48 desiccation 48 mold mildew 48 invasives 48 understory 47 whiteflies 47 gypsy moth 47 fungal 47 nematode 47 borers 47 aphids 47 perennial grasses 47 armyworms 47 broadleaf weeds 47 invasive alien 47 junipers 47 tamarisk 47 Invasive species 46 aphid 46 gypsy moths 46 seed germination 46 parasitic infections 46 poison ivy 46 buckthorn 46 leaf litter 46 Fungal 46 wildfires 46 termite 46 hemlock trees 46 defoliate 46 stripe rust 46 bee populations 46 pest control 46 aspen 46 conifers