Related by context. Frequent words. (Click for all words.) 71 buffelgrass 60 tamarisk 60 salt cedar 59 Scotch broom 58 invasive weeds 58 cheatgrass 56 saltcedar 56 nonnative plants 55 spotted knapweed 55 Hydrilla 55 bark beetle 55 invasive weed 54 loosestrife 54 leafy spurge 53 purple loosestrife 53 vegetation 53 pampas grass 53 Xeriscape 53 beetle infestation 53 woody plants 52 fireweed 52 chinch bugs 52 whitefly 52 Mulching 52 knapweed 52 pine beetles 52 Sonoran Desert 52 lodgepole 51 adelgid 51 whiteflies 51 Fertilizing 51 lodgepole pines 51 Vegetation 51 aquatic weeds 51 Canker 51 hemlock woolly adelgid 51 bark beetles 51 noxious weed 51 Gypsy moths 51 noxious weeds 50 aspen trees 50 Fungal 50 junipers 50 mesquite trees 50 black footed ferrets 50 Aphids 50 grasses 50 Herbicides 50 Chihuahuan Desert 50 Poison ivy 50 weed seeds 50 evening primrose 50 oleanders 49 sagebrush 49 invasive species 49 shrub 49 hemlock trees 49 saguaros 49 giant salvinia 49 Emerald ash borer 49 cactus 49 insect infestations 49 phragmites 49 knotweed 49 foxtail 49 desert bighorn sheep 49 desert tortoises 49 Rotenone 48 Bermuda grass 48 Desertification 48 garlic mustard 48 Nematodes 48 Aeration 48 bosque 48 Bighorn sheep 48 spider mites 48 Mountain Pine Beetle 48 adelgids 48 Sonoran desert 48 chytrid fungus 48 buckthorn 48 Replanting 48 mountain pine beetles 48 groundcover 48 forbs 48 saguaro 48 Wildfire Burns 48 weeds 48 bark beetle infestation 48 mealybugs 48 bindweed 48 fungal disease 48 riparian habitat 48 anthracnose 48 manzanita 48 nonnative 48 Invasive 48 Sudden Oak 48 Nutria 48 groundcovers 48 lupine