Related by context. Frequent words. (Click for all words.) 65 invasive weed 61 knotweed 60 invasive pest 60 phragmites 60 noxious weed 60 Japanese knotweed 59 purple loosestrife 59 invasive species 59 kudzu 59 hydrilla 58 invasives 58 insect pests 57 water hyacinth 57 insect pest 57 weevil 56 Canker 56 spider mites 56 pigweed 56 Soybean rust 56 invasive weeds 56 fungus 55 whitefly 55 stink bug 55 insect 55 invasive alien 55 pests 55 woody plants 54 citrus greening 54 salt cedar 54 canker 54 noxious weeds 54 tamarisk 54 infestations 54 Invasive species 53 weeds 53 dieback 53 powdery mildew 53 pest 53 gypsy moths 53 longleaf pine 53 root rot 52 psyllid 52 beetle 52 fungal disease 52 infestation 52 broadleaf weeds 52 weevils 52 knapweed 52 hemlock trees 52 poison ivy 52 grasses 52 Asian soybean rust 52 duckweed 52 milfoil 52 borers 52 tall fescue 52 gypsy moth 51 cheatgrass 51 insects 51 invasive aquatic 51 Aphids 51 garlic mustard 51 stink bugs 51 aphids 51 species 51 buckthorn 51 carpenter ants 51 sedge 51 beetles 51 ash borer 51 crabgrass 51 Emerald Ash Borer 50 privet 50 fern 50 aphid 50 nematode 50 feral pigs 50 Infestation 50 Turfgrass 50 aquatic vegetation 49 alga 49 insect infestations 49 armyworms 49 nematodes 49 wild hogs 49 vegetation 49 fungi 49 soybean rust 49 citrus canker 49 boll weevil 49 hyacinth 49 stem rust 49 hemlocks 49 beetle infestation 49 ornamentals 49 herbicides 49 caterpillars 48 Invasive Species 48 feral hogs 48 borer 48 defoliate