Related by context. Frequent words. (Click for all words.) 58 aquatic weeds 57 Rotenone 57 Bti 56 Eurasian milfoil 55 Didymo 54 larvicides 53 didymo 52 Hydrilla 51 Eurasian watermilfoil 51 aquatic weed 51 Malathion 50 imidacloprid 50 Herbicides 50 Fungicide 49 rotenone 49 Japanese knotweed 49 Zebra mussels 49 Emerald ash borer 49 milfoil 49 Permethrin 49 pyrethroids 48 pyrethroid 48 giant salvinia 48 Herbicide 48 biocide 48 herbicide 48 invasive weed 47 hydrilla 47 broadleaf weeds 47 Fungicides 47 Btk 47 foliar 47 rock snot 47 inoculum 47 larvacide 46 algae 46 invasive weeds 46 sphagnum moss 46 diatomaceous earth 46 downy mildew 46 Fungal 46 harmful pathogens 46 aluminum sulfate 46 aquatic vegetation 46 Weed Control 46 Bacillus thuringiensis 45 Insecticide 45 larvicide 45 hemlock trees 45 Anhydrous ammonia 45 duckweed 45 insecticidal 45 copper sulfate 45 oxalic acid 45 herbicides 45 loosestrife 45 Phytophthora 45 fungal spores 45 adelgids 45 Contaminants 44 Glyphosate 44 Residues 44 viral hemorrhagic septicemia 44 diazinon 44 zebra mussels 44 emerald ash borers 44 rodenticides 44 insecticide 44 mosquito larvae 44 purple loosestrife 44 fathead minnows 44 rodenticide 44 liquid manure 44 anthracnose 44 Biosolids 44 naturally occurring bacteria 44 permethrin 44 fungus 44 invasive aquatic 44 fungicide 44 ragwort 43 Crabgrass 43 Hydrochloric acid 43 wood preservatives 43 phragmites 43 weed seeds 43 Microbial 43 insecticidal soap 43 Poison ivy 43 malathion 43 bermudagrass 43 bacteria fungi 43 hazmat crews 43 algal bloom 43 fungal 43 freshwater mussels 43 chinch bugs 43 Leaching 43 hemlock woolly adelgid 43 Atrazine 43 Fungus