Related by context. Frequent words. (Click for all words.) 54 pine marten 54 hemlock trees 54 hemlock woolly adelgid 53 Phytophthora ramorum 52 hogweed 52 tent caterpillars 52 adelgid 52 invasive insect 52 Japanese Knotweed 51 Japanese knotweed 51 overwintered 51 leopard frogs 50 alder trees 50 loosestrife 50 canadensis 49 Invasive plants 49 invasive weed 49 Gypsy moths 49 giant hogweed 49 adelgids 49 Emerald ash borer 49 shrubland 48 Phytophthora 48 deciduous forests 48 jack pine 48 moth larvae 48 capercaillie 48 beetle 48 tamarack 48 mycologist 47 purple loosestrife 47 parasitic wasp 47 fireweed 47 Norway maples 47 coniferous trees 47 knotweed 47 woodlands 47 mealy bugs 47 defoliating 47 invasive pest 47 insect 47 coppice 47 ash borers 47 beetle infestations 47 chytrid 46 waterbird 46 Milfoil 46 Butterfly Conservation 46 spruce fir 46 apple scab 46 hickory trees 46 chestnut blight 46 grassland birds 46 mealybug 46 larval stages 46 conifer forests 46 anthracnose 46 yellow legged frogs 45 beetles 45 Phragmites 45 infestations 45 beetle infestation 45 red cockaded woodpeckers 45 Lichens 45 leaf beetle 45 eucalypt 45 sawfly 45 White Nose Syndrome 45 emerald ash borers 45 fungus 45 lodgepole 45 Didymo 45 dieback 45 leafhoppers 45 gypsy moth 45 native flora 45 pine plantations 45 barn owls 45 Stink bugs 45 Asian longhorned beetle 45 bur oak 44 infestation 44 hemlocks 44 saltbush 44 gypsy moths 44 bees butterflies 44 spotted knapweed 44 bobolinks 44 Fungal 44 knapweed 44 Infestations 44 coniferous forests 44 mountain pine beetles 44 ponderosa 44 eucalypts 44 Rhododendrons 44 carbaryl 44 californica 44 brown marmorated stink bug 44 marten 44 reforested