Related by context. Frequent words. (Click for all words.) 65 leafy spurge 64 knapweed 62 noxious weeds 62 noxious weed 61 chickweed 61 purple loosestrife 61 invasive weed 61 spurge 60 salt cedar 60 cutworms 60 weeds 60 pigweed 59 broadleaf weeds 59 buckthorn 59 fireweed 58 invasive weeds 58 woody plants 58 tamarisk 58 whiteflies 58 barberry 58 cheatgrass 58 powdery mildew 58 broadleaf 58 Eurasian milfoil 57 knotweed 57 downy mildew 57 spider mites 57 anthracnose 56 thistles 56 soybean aphid 56 Phytophthora 56 vetch 56 bindweed 56 shade tolerant 56 invasives 56 whitefly 56 horsetail 56 forbs 56 pampas grass 56 spp 56 mealybugs 56 Eurasian watermilfoil 56 hydrilla 56 insect pests 55 crabgrass 55 adelgid 55 yarrow 55 tall fescue 55 hemlock woolly adelgid 55 junipers 55 shrubby 55 Japanese knotweed 55 phragmites 55 pests 55 viburnum 55 Herbicides 55 defoliate 54 aphids 54 lantana 54 insect pest 54 European corn borer 54 Aphids 54 garlic mustard 54 root rot 54 soybean aphids 54 sedge 54 bermudagrass 54 aquatic weeds 54 grasses 54 borers 53 insect infestations 53 nematodes 53 Herbicide 53 understory 53 herbicides 53 bluestem 53 butterfly bush 53 vinca 53 mountain laurel 53 poison ivy 52 sedges 52 herbaceous plants 52 Poison ivy 52 salvias 52 lupine 52 Feral hogs 52 nematode 52 red clover 52 weevils 52 invasive species 52 ryegrass 52 boll weevils 52 shrub 52 walnut trees 52 phlox 52 giant hogweed 52 aphid 52 cattail 52 conifers 52 Fungicides 51 weevil