Related by context. Frequent words. (Click for all words.) 56 whiteflies 56 whitefly 56 spotted knapweed 54 leafy spurge 53 nematodes 53 knapweed 52 Aphids 52 soybean aphid 51 aphids 51 European corn borer 51 mealybugs 51 cutworms 51 beetle 51 aphid 51 biocontrol 51 fungus 51 parasitic wasps 50 bark beetle 50 salt cedar 50 psyllids 50 beetles 50 spider mites 50 pests 50 stripe rust 49 downy mildew 49 bollworm 49 insect 49 insect pest 49 tamarisk 49 corn rootworm 49 Rotenone 48 invasive weeds 48 aspen trees 48 insect pests 48 Hantavirus 48 broadleaf weeds 48 grasshoppers 48 Argentine ants 48 Bacillus thuringiensis 48 psyllid 48 thrips 48 Zebra mussels 48 lodgepole 48 Bighorn sheep 48 invasive weed 48 entomologists 47 widow spiders 47 purple loosestrife 47 Feral hogs 47 vetch 47 noxious weed 47 invasive pests 47 boll weevils 47 mountain pine beetles 47 potato blight 47 mites 47 nematode 46 soybean aphids 46 weevil 46 chytrid fungus 46 insects 46 borers 46 powdery mildew 46 anthracnose 46 lupine 46 hemlock woolly adelgid 46 Infestations 46 pine beetles 46 black footed ferrets 46 garter snakes 46 Soybean rust 46 barberry 46 noxious weeds 46 overwintering 46 agaves 46 fungal disease 46 caterpillars 46 Herbicides 46 beetle infestation 45 woody plants 45 pest 45 herbicide resistant 45 rootworm 45 Phytophthora 45 bark beetles 45 lady beetles 45 pigweed 45 fungal diseases 45 fungi 45 Integrated Pest Management 45 beneficial insects 44 Sudden Oak 44 corn borer 44 adelgid 44 Chronic Wasting Disease 44 pathogen 44 fireweed 44 Japanese knotweed 44 hackberry 44 emerald ash borers 44 ant species