Related by context. Frequent words. (Click for all words.) 56 gypsy moth caterpillars 56 spartina 56 invasive insect 56 Emerald ash borer 55 defoliating 55 Asian longhorned beetle 54 emerald ash borers 53 Phytophthora ramorum 53 hogweed 53 tent caterpillars 53 hemlock trees 53 Mountain Pine Beetle 53 gypsy moths 53 adelgids 52 adelgid 52 Norway maples 52 hemlock woolly adelgid 52 ash borers 52 spruce fir 52 melaleuca 51 long horned beetle 51 Gypsy moths 51 Emerald Ash Borer 51 spotted owl habitat 50 invasive pest 50 Invasive plants 50 raccoon rabies 50 giant hogweed 50 beetle infestations 50 overwintered 50 salvinia 50 loosestrife 50 chestnut blight 50 beetle 49 cankerworms 49 Phragmites 49 woody vegetation 49 ash borer 49 beetle infestation 49 overharvested 49 Sudden Oak 48 pine plantations 48 gypsy moth 48 coniferous trees 48 Eurasian milfoil 48 Varroa mite 48 Infestations 48 murrelet 48 Japanese knotweed 48 infestation 48 emerald ash borer 48 leaf beetle 48 Boreal forest 48 invasive species 48 bagworms 48 jack pine 48 Phytophthora 48 barrens 48 anthracnose 47 hardwood trees 47 heartwood 47 oak wilt 47 aquatic weed 47 moth larvae 47 cogongrass 47 ash trees 47 invasive weed 47 Gypsy Moth 47 borers 47 Milfoil 47 sawfly 47 beetle larvae 47 pine marten 47 mountain pine beetles 47 hickories 47 eelgrass beds 47 White Nose Syndrome 47 oak hickory 47 coniferous forests 46 Point Pelee 46 Invasive species 46 woodlots 46 Scotch broom 46 marten 46 Missisquoi Bay 46 Hydrilla 46 flea beetles 46 pine beetle infestation 46 purple loosestrife 46 grassland birds 46 Soybean rust 46 beetles 46 larval stages 46 leafhoppers 46 deciduous forests 46 species 46 Didymo 46 flowering dogwood 46 conifer trees 46 longleaf 46 defoliated