Related by context. Frequent words. (Click for all words.) 75 phragmites 69 purple loosestrife 66 invasives 65 knotweed 65 Japanese knotweed 64 invasive species 63 invasive weeds 63 aquatic vegetation 63 eelgrass 63 hydrilla 62 invasive weed 62 buckthorn 62 Invasive species 61 garlic mustard 60 duckweed 60 milfoil 59 weeds 59 cattail 58 noxious weeds 58 alga 58 sedge 57 gypsy moths 57 water hyacinth 57 nematodes 57 cattails 57 noxious weed 56 knapweed 56 tamarisk 56 woody plants 56 invasive aquatic 56 spider mites 56 salt cedar 56 species 56 Aphids 55 grasses 55 mosquito larvae 55 borers 55 fungi 55 weevils 55 vegetation 55 Zebra mussels 55 weevil 55 conifers 55 insect pests 54 spp 54 hyacinth 54 hemlocks 54 insects 54 marsh grasses 54 fungus 53 naturally occurring bacteria 53 insect 53 sedges 53 groundcover 53 pigweed 53 marsh 53 pests 52 dandelion 52 insect pest 52 Herbicides 52 stink bug 52 insect larvae 52 caterpillars 52 crabgrass 52 zebra mussel 52 Emerald Ash Borer 52 beetles 52 zebra mussels 52 vernal pools 52 wetland 52 Larvae 52 root rot 52 beech trees 52 hardwood trees 52 beetle 52 poison ivy 52 Invasive 52 Invasive Species 52 gypsy moth 52 borer 52 insect populations 52 seagrass 52 invasive alien 51 willows 51 ash borer 51 nematode 51 ferns 51 fern 51 mangrove trees 51 nonnative species 51 dandelions 51 groundcovers 51 shrubby 51 wetlands 51 junipers 51 mosses 51 organisms 51 mangrove 51 kudzu 51 understory 51 algal blooms