Related by context. Frequent words. (Click for all words.) 63 invasive weeds 61 cheatgrass 60 noxious weeds 60 noxious weed 58 cottonwoods 58 junipers 57 cottonwood 57 vegetation 56 invasives 56 woody plants 56 mesquite 55 hydrilla 55 cattails 55 willows 55 weeds 54 cottonwood trees 54 milfoil 54 sagebrush 54 aspen 53 native grasses 53 grasses 53 garlic mustard 52 pine beetles 52 juniper 52 bark beetles 52 invasive species 52 conifers 52 prairie grass 51 ponderosa pine 51 weevils 51 wildflowers 51 understory 51 shrub 50 Vegetation 50 pine beetle 50 rangeland 50 prickly pear 50 hemlocks 50 beetle 49 grasshoppers 49 weevil 49 shrubs 49 thistle 49 grasslands 49 beetles 49 aphids 48 lupine 48 honeysuckle 48 root rot 48 conifer 48 thistles 48 lantana 48 underbrush 48 ryegrass 48 nonnative 48 hardwood trees 47 groundcover 47 zebra mussel 47 grassland 47 aspens 47 zebra mussels 47 kudzu 47 pecan trees 47 milkweed 47 prescribed burns 47 insect pests 47 weed 47 insect 46 grape vines 46 thrips 46 cacti 46 forest thinning 46 rangelands 46 nematodes 46 pests 46 drought tolerant plants 46 nematode 46 herbicide 46 walnut trees 46 feral hogs 46 insects 46 caterpillars 46 powdery mildew 46 herbicides 46 aphid 46 feral pigs 46 revegetation 45 beneficial insects 45 fungus 45 gypsy moths 45 hardwood forests 45 fungal disease 45 mountain pine beetle 45 trees 45 wild hogs 45 mosquito populations 45 elms 45 cactus 44 fescue 44 pine trees 44 mosquito larvae