Related by context. Frequent words. (Click for all words.) 66 giant hogweed 62 purple loosestrife 61 anthracnose 60 knapweed 60 spider mites 59 knotweed 59 root rot 58 poison ivy 58 noxious weed 58 garlic mustard 57 cutworms 57 Japanese knotweed 57 downy mildew 57 pigweed 57 aphid 57 poison oak 57 leafy spurge 56 invasive weed 56 noxious weeds 56 powdery mildew 55 phragmites 55 soybean aphids 55 Poison ivy 55 whiteflies 55 chickweed 54 hemlock trees 53 whitefly 53 aphids 53 insect pest 53 fungal diseases 53 gypsy moths 53 stink bug 53 invasives 53 spp 53 emerald ash borer 53 emerald ash borers 53 insect 52 buckthorn 52 invasive weeds 52 aquatic weeds 52 chiggers 52 gypsy moth 52 defoliate 52 stripe rust 52 crabapple 52 milfoil 52 invasive species 52 fusarium 51 pests 51 dieback 51 woody plants 51 beneficial insects 51 weeds 51 viburnum 51 borers 51 cheatgrass 51 winterkill 51 urushiol 51 nematode 51 insect pests 50 crabapples 50 beetle infestation 50 ash borer 50 groundcovers 50 dandelions 50 infestations 50 cattail 50 hydrilla 50 hemlocks 50 nightshade 50 Aphids 50 invasive pest 50 fungus 50 salt cedar 50 nematodes 50 tall fescue 49 Emerald Ash Borer 49 ash trees 49 tick bites 49 caterpillars 49 corn rootworm 49 ragweed 49 fungal disease 49 adelgid 49 bracken 49 brassicas 49 infestation 49 weevil 49 stink bugs 49 wasp 49 Asian longhorned beetle 49 crabgrass 49 shrubby 49 psyllid 49 understory 49 Sudden Oak 49 pest 49 carpenter ants 49 prairie grass 49 coneflowers 48 stinging insects