Related by context. Frequent words. (Click for all words.) 75 hydrilla 64 invasive weed 63 milfoil 62 phragmites 62 purple loosestrife 61 aquatic vegetation 60 knotweed 59 duckweed 59 Japanese knotweed 59 Invasive species 59 invasive species 58 Zebra mussels 58 Aphids 58 alga 57 water hyacinth 57 Invasive 57 zebra mussel 57 grass carp 57 zebra mussels 57 invasives 56 gypsy moths 56 eelgrass 56 invasive aquatic 56 stink bug 56 gizzard shad 55 Bluegills 55 algae 55 invasive weeds 55 Canker 55 spider mites 54 Smallmouth 54 salt cedar 54 brookies 54 Northern pike 54 largemouth bass 54 mussels 54 sedge 53 gypsy moth 53 borers 53 fern 53 didymo 53 mosquito larvae 53 hemlock trees 53 hyacinths 53 Largemouth bass 53 grubs 53 buckthorn 52 lionfish 52 trout 52 toxic algae 52 algal bloom 52 infestations 52 Rainbow trout 52 rotenone 52 snakehead 52 fungus 52 brown trout 52 garlic mustard 52 invasive pest 51 carp 51 bullhead 51 Fungus 51 insect pests 51 stink bugs 51 northern pike 51 Emerald Ash Borer 51 sunfish 51 largemouths 51 insect 51 bluegills 51 fungal disease 51 algae bloom 51 groundcover 51 algae blooms 51 largemouth 51 Algae 51 cattail 51 lady beetles 51 species 51 beetles 51 spotted seatrout 51 freshwater fish 50 beetle 50 weevils 50 aphids 50 weevil 50 insects 50 flathead catfish 50 Larvae 50 aquatic species 50 weeds 50 knapweed 50 aphid 50 pests 50 silver carp 50 cattails 50 Leeches 50 noxious weed 50 Panfish 50 fish 50 sea lamprey