Related by context. Frequent words. (Click for all words.) 66 chytrid fungus 63 Invasive plants 61 parasitic worm 61 invasive insect 58 Gypsy moths 58 spotted knapweed 56 mealybug 56 protozoan 55 White Nose Syndrome 55 T. gondii 55 fungus 55 parasite 54 amphibian populations 54 funguses 54 superweeds 54 beetle infestations 54 apple moth 54 invasive species 54 fungal pathogens 54 adelgid 54 adelgids 54 hemlock woolly adelgid 54 Japanese knotweed 53 insect 53 Poison ivy 53 fungal disease 53 pathogen 53 cankers 53 Candida albicans 53 melaleuca 53 tsetse flies 53 mountain pine beetles 53 feral pigs 53 Invasive species 53 anaplasmosis 53 parasitic infection 53 habitat fragmentation 53 Phragmites 53 beetle 53 sea lampreys 53 microbial pathogens 53 Phytophthora 53 Migrating birds 52 Feral hogs 52 chestnut blight 52 Toxoplasma gondii 52 feral pig 52 Emerald ash borer 52 Toxoplasma 52 stinkbugs 52 fireblight 52 insect infestations 52 bark beetle 52 pathogenic microorganisms 52 varroa mite 52 sawfly 52 citrus greening disease 52 anthracnose 52 Cane toads 52 species 52 buffelgrass 52 Aedes aegypti mosquito 52 psyllid 52 salvinia 52 Inbreeding 52 loosestrife 52 whirling disease 51 tent caterpillars 51 moth larvae 51 insect borne diseases 51 gypsy moth caterpillars 51 Nipah virus 51 P. vivax 51 lodgepole 51 Chronic wasting disease 51 Soil erosion 51 insect pests 51 varroa mites 51 ragwort 51 Sudden Oak 51 pests 51 coccidiosis 51 insect pest 51 insects 51 Wolbachia 51 ash borers 51 invasive weed 51 bollworms 51 mutant strain 50 habitat degradation 50 aspen stands 50 tsetse fly 50 disease 50 Medfly 50 tiger mosquito 50 parasitic disease 50 Hydrilla 50 parasitoids 50 parasitic infections 50 whitefly 50 Fungal