Related by context. Frequent words. (Click for all words.) 68 hemlock woolly adelgid 64 adelgid 62 hemlock trees 60 beetles 58 freshwater mussels 56 black footed ferrets 56 weevils 56 invasive weed 55 parasitic wasps 55 hemlocks 55 insects 55 purple loosestrife 54 beetle larvae 54 species 54 federally endangered 54 gypsy moths 53 nematodes 53 caterpillars 53 Eurasian milfoil 53 tadpoles 53 ash borer 53 fungus 52 woody plants 52 beetle 52 invasives 52 Hydrilla 52 lady beetles 52 spotted knapweed 52 forbs 52 insect 52 invasive pest 51 knotweed 51 fungi 51 aquatic weeds 51 gypsy moth caterpillars 51 psyllids 51 invasive species 51 beneficial insects 51 lampreys 51 leafy spurge 51 phragmites 51 orchid species 51 spider mites 51 feral pigs 51 gypsy moth 50 insect larvae 50 insect pests 50 grassland birds 50 weevil 50 stink bugs 50 wild hogs 50 bee populations 50 Connecticut Agricultural Experiment 50 hardwood forests 50 hydrilla 50 knapweed 50 salt cedar 50 mealybugs 50 Florida panthers 50 pronghorns 50 longleaf pine 50 grass carp 50 monarch butterflies 49 boll weevils 49 rodents 49 invasive weeds 49 black footed ferret 49 whiteflies 49 invasive pests 49 giant hogweed 49 Feral hogs 49 beetle infestation 49 armyworms 49 Argentine ants 49 soybean aphid 49 stink bug 49 frogs 49 rodenticide 49 salt tolerant 49 salamanders 49 ibises 49 mountain pine beetles 49 biocontrol 49 herbaceous plants 49 emerald ash borers 49 insect populations 49 tamarisk 49 vetch 49 Phytophthora 48 marten 48 Japanese knotweed 48 gray squirrels 48 damselflies 48 squirrels 48 avian species 48 moths 48 ant colonies 48 habitats 48 pests 48 wetland habitats 48 Rainbow trout