Related by context. Frequent words. (Click for all words.) 71 ash borer 70 Emerald Ash Borer 70 invasive species 70 gypsy moths 70 emerald ash borer 68 gypsy moth 68 invasive weed 66 beetle 64 fungus 64 insect 62 stink bug 62 infestation 62 purple loosestrife 61 beetle infestation 61 bark beetle 60 pests 60 invasives 60 beetles 60 ash trees 60 Invasive species 59 fungal disease 59 feral pigs 58 borer 58 insects 58 aphid 57 infestations 57 Japanese knotweed 57 aquatic invasive species 57 insect pests 57 zebra mussels 57 zebra mussel 57 psyllid 56 moth 56 pine beetles 56 bee populations 56 phragmites 55 Chronic Wasting Disease 55 pest 55 pathogen 55 stink bugs 55 hemlocks 55 Dutch elm disease 54 weevil 54 pine beetle 54 wasp 54 Zebra mussels 54 gray squirrels 54 brown apple moth 54 citrus greening 54 didymo 54 mosquito populations 53 weevils 53 EAB 53 nose syndrome 53 Invasive Species 53 invasive weeds 53 gray squirrel 53 borers 53 tick borne diseases 52 bark beetles 52 deer ticks 52 species 52 Colony Collapse Disorder 52 nematode 52 buckthorn 52 avian influenza 52 nonnative species 52 spider mites 52 parasitic disease 52 moths 52 nematodes 51 avian flu 51 locust 51 milfoil 51 mosquitos 51 garlic mustard 51 noxious weed 51 caterpillars 51 West Nile virus 51 mosquito borne virus 51 aphids 51 cormorant 51 poultry flocks 51 starlings 51 migrating birds 50 avian flu virus 50 algal bloom 50 mosquito borne diseases 50 mites 50 wasps 50 avian influenza virus 50 insect infestations 50 bed bugs 50 mosquito borne disease 50 Asian soybean rust 50 West Nile Virus 50 infected mosquitoes 50 mosquito larvae 50 toxic algae 50 disease 50 insect infestation