Related by context. Frequent words. (Click for all words.) 78 milfoil 73 invasive weed 68 hydrilla 66 invasive weeds 65 invasives 65 invasive species 64 aquatic vegetation 63 gypsy moths 61 zebra mussels 61 noxious weeds 61 garlic mustard 61 Zebra mussels 60 aquatic invasive species 60 buckthorn 59 noxious weed 59 weeds 59 zebra mussel 59 Invasive species 58 gypsy moth 58 water hyacinth 58 rotenone 56 eelgrass 56 algae 56 toxic algae 55 didymo 55 lake trout 55 tamarisk 54 northern pike 54 herbicide 54 weevils 54 herbicides 53 invasive 53 mussels 53 nematodes 53 algae blooms 52 cheatgrass 52 lamprey 52 hyacinth 52 nematode 52 weed 52 algal blooms 51 Invasive 51 muskellunge 51 ash borer 51 carp 51 infestations 51 weevil 50 pests 50 borers 50 brown trout 50 muskies 50 mosquito larvae 50 nonnative species 50 woody plants 50 infestation 50 rainbow trout 50 emerald ash borer 49 aphid 49 aphids 49 crabgrass 49 beetles 49 Emerald Ash Borer 49 algae bloom 49 quagga mussels 49 trout 49 cattails 49 aquatic species 49 poison ivy 49 mussel 49 cormorants 49 feral pigs 49 Asian carp 49 smallmouth bass 49 alewives 49 root rot 49 fungus 48 cyanobacteria 48 nutrient pollution 48 Invasive Species 48 insect pests 48 brook trout 48 hemlocks 48 insect 48 lakes 48 willows 48 fungal diseases 48 fungi 48 schistosomiasis 48 mosquito populations 48 Asian Carp 48 grasses 48 mute swans 47 muskie 47 nonnative 47 powdery mildew 47 deer ticks 47 poison oak 47 panfish 47 dandelions 47 largemouth bass 47 kelp