Related by context. Frequent words. (Click for all words.) 62 oak wilt 58 Emerald ash borer 57 Phytophthora ramorum 57 Phytophthora 57 fungal pathogen 57 chestnut blight 57 anthracnose 56 elms 56 fungal disease 56 invasive insect 56 Dutch elm disease 55 elm trees 54 ash borers 54 Sudden Oak 53 chytridiomycosis 53 Citrus canker 53 disease 53 fungus 53 Gypsy moths 52 cankers 52 hogweed 52 aspergillosis 52 White Nose Syndrome 52 tent caterpillars 52 EEE virus 52 aspergillus 52 hemlock trees 51 soybean cyst nematode 51 beetle infestations 51 Infestations 51 Phragmites 51 Naegleria 51 tick borne illnesses 51 mountain pine beetles 51 invasive beetle 50 fungal infection 50 cogongrass 50 Canker 50 ash trees 50 Alternaria 50 downy mildew 50 beetle infestation 50 horse chestnut 50 emerald ash borers 50 ash borer 50 chytrid fungus 49 tick borne illness 49 hemlock woolly adelgid 49 Milfoil 49 flea beetles 49 Neisseria meningitidis 49 raccoon rabies 49 avian influenza H#N# 49 beeches 49 Tularemia 49 cankerworms 49 Bubonic Plague 49 WNV infection 49 meningoencephalitis 49 tick borne 49 infestation 49 herpes infection 49 Schistosomiasis 49 long horned beetle 49 adelgid 49 Chronic wasting disease 49 apple scab 49 loosestrife 49 Norway maples 48 mosquito transmitted 48 Ebola hemorrhagic fever 48 Y. pestis 48 amphibian populations 48 Genital herpes 48 Asian longhorned beetle 48 citrus greening disease 48 Rocky Mountain Spotted Fever 48 bacterial pathogen 48 antibiotic resistant strain 48 Invasive plants 48 tick borne disease 48 gypsy moth caterpillars 48 Emerald Ash Borer 48 parasitic worm 48 leafhoppers 48 emerald ash borer 48 sucking insects 48 enteroviruses 48 Bacterial infections 48 dieback 48 Stachybotrys 48 chytrid 48 pneumonic 48 herpes viruses 47 sweetgum 47 Mountain Pine Beetle 47 infestations 47 hickory trees 47 leaf beetle 47 Fungal 47 diseases afflicting