Related by context. Frequent words. (Click for all words.) 70 milfoil 68 purple loosestrife 66 hydrilla 65 invasive weed 62 invasives 61 invasive species 60 gypsy moths 60 Zebra mussels 59 zebra mussels 58 buckthorn 57 gypsy moth 57 aquatic vegetation 57 garlic mustard 56 zebra mussel 55 Invasive species 55 invasive weeds 55 aquatic invasive species 54 noxious weed 54 water hyacinth 54 didymo 54 emerald ash borer 53 borers 53 weevils 53 noxious weeds 53 beetles 52 mussels 52 ash borer 52 lamprey 51 Emerald Ash Borer 51 muskellunge 51 tamarisk 51 eelgrass 51 rotenone 51 beetle 51 gizzard shad 51 nematodes 50 carp 50 aquatic species 50 infestations 49 lake trout 49 nonnative 49 insect 49 northern pike 49 cheatgrass 49 herbicides 49 Invasive 49 quagga mussels 49 pests 48 weeds 48 insect pests 48 species 48 mosquito larvae 48 nonnative species 48 muskies 48 borer 48 infestation 48 invasive 48 insects 48 weevil 48 aphid 48 Asian Carp 48 nematode 48 spider mites 48 alewives 47 wasps 47 lampreys 47 fungal disease 47 aphids 47 conifers 47 brown trout 47 silver carp 47 algae 47 hyacinth 47 cattails 46 crabgrass 46 stink bug 46 fungi 46 snakehead 46 algal blooms 46 aquatic organisms 46 lakes 46 walleye 45 toxic algae 45 EAB 45 muskie 45 stink bugs 45 rainbow trout 45 cormorants 45 bark beetle 45 weed 45 hardwood trees 45 aquatic ecosystems 45 larvae 45 grubs 45 fungus 45 pickerel 45 mosquito populations 45 Invasive Species 45 trout 45 algae blooms 45 lionfish