Related by context. Frequent words. (Click for all words.) 73 milfoil 65 hydrilla 64 phragmites 64 purple loosestrife 63 invasive weed 62 invasive weeds 62 invasive species 60 invasives 60 aquatic vegetation 59 eelgrass 59 Invasive species 58 zebra mussels 58 buckthorn 57 garlic mustard 56 Zebra mussels 56 gypsy moths 56 Invasive Species 56 knotweed 55 noxious weeds 55 weeds 55 Japanese knotweed 55 aquatic invasive species 55 Invasive 54 Emerald Ash Borer 54 water hyacinth 54 zebra mussel 53 noxious weed 53 gypsy moth 53 cattail 52 algae 52 salt cedar 52 Stormwater 52 woody debris 52 ash borer 51 toxic algae 51 Asian Carp 51 tamarisk 51 Algae 51 didymo 50 lake trout 50 alewife 50 knapweed 50 Asian longhorned beetle 50 alga 50 algae blooms 50 Vegetation 50 Sediment 50 lakes 50 rotenone 50 Watershed 50 mussels 50 spider mites 50 gizzard shad 49 mosquito larvae 49 Lake Pepin 49 cheatgrass 49 weevils 49 Fungus 49 cattails 49 Pollution 49 Panfish 49 Smallmouth 48 sea lamprey 48 alewives 48 nutrient pollution 48 emerald ash borer 48 insect 48 infestations 48 fungus 48 weevil 48 beetle 48 sedge 47 Aphids 47 Grasses 47 Bacterial 47 Spores 47 shellfish beds 47 dieback 47 muskies 47 infestation 47 Bluegills 47 Penobscot River 47 carp 47 hyacinth 47 woody plants 47 borers 47 lake sturgeon 47 algae bloom 47 algal blooms 47 grass carp 47 brookies 47 stink bug 47 Larvae 47 fungal disease 47 Shellfish 47 vegetation 47 Chronic Wasting Disease 47 aquatic organisms 47 northern pike 47 nematode 46 Sebago Lake