Related by context. Frequent words. (Click for all words.) 70 emerald ash borer 69 Asian longhorned beetle 69 ash borer 67 Emerald Ash Borer 66 invasive weed 65 beetle 63 gypsy moths 63 invasive species 63 Soybean rust 62 gypsy moth 61 fungus 61 insect 60 stink bug 59 ash trees 58 infestation 58 purple loosestrife 58 psyllid 57 beetle infestation 57 beetles 57 zebra mussels 56 Asian soybean rust 56 insect pest 55 invasives 55 pests 55 Japanese knotweed 54 borer 54 Asian citrus psyllid 54 Chronic Wasting Disease 54 fungal disease 54 knapweed 54 Zebra mussels 53 aphid 53 Chronic wasting disease 53 invasive aquatic 53 zebra mussel 53 insect pests 53 knotweed 53 pathogen 52 Dutch elm disease 52 borers 52 varroa mite 52 hemlocks 52 garlic mustard 52 Invasive species 52 infestations 52 stink bugs 52 weevil 52 aquatic invasive species 52 pest 52 citrus greening 52 brown apple moth 51 insects 51 invasive weeds 51 phragmites 51 weevils 51 moth 50 noxious weed 50 EAB 50 buckthorn 50 chronic wasting 50 milfoil 50 insect infestation 50 didymo 50 mountain pine beetles 50 deer ticks 49 bark beetle 49 lady beetles 49 soybean rust 49 feral pigs 49 hardwood trees 49 fungi 49 mosquito borne virus 49 kudzu 48 defoliated 48 aphids 48 Aphids 48 chestnut trees 48 insect infestations 48 feral swine 48 West Nile virus 48 stem rust 48 dieback 48 hydrilla 48 Ebola outbreak 48 spider mites 47 invasive alien 47 avian flu virus 47 wasp 47 CWD 47 poison ivy 47 food borne pathogens 47 snakehead 47 bee populations 47 root rot 46 parasite 46 disease 46 insect larvae 46 noxious weeds 46 parasitic infection 46 honeybee colonies 46 pine beetles