Related by context. Frequent words. (Click for all words.) 63 airborne spores 62 fungal spores 59 Spider mites 59 funguses 56 spores 55 Soybean rust 55 Armyworms 55 Citrus canker 55 subtropical regions 55 Stink bugs 54 fungal pathogen 54 P. ramorum 54 mold fungi 54 Scientists theorize 54 Migrating birds 54 temperate regions 53 leafhoppers 53 airborne droplets 53 spirochete 53 pollen grains 53 supercell thunderstorms 53 fruiting bodies 53 inoculum 52 Gypsy moths 52 Plasmodium vivax 52 tropical climates 52 flea beetles 52 Rickettsia 52 sandflies 52 bacterial pathogen 52 leaf blight 52 Anopheles 52 Pneumonic plague 52 encephalitis inflammation 51 Spores 51 temperate zones 51 highly communicable 51 Powdery mildew 51 Infestations 51 Tularemia 51 Damaging winds 51 Saharan dust 51 fungus 50 migrating ducks 50 tick borne 50 aspergillus 50 ragweed pollen 50 rust fungus 50 cankers 50 fungal pathogens 50 chikungunya virus 50 plasmodium 50 supercell 50 Northerly winds 50 causative agents 50 Genital herpes 50 Phytophthora ramorum 50 Aphids 50 cucurbits 50 hackberry 50 deciduous forests 50 dengue viruses 50 Aedes aegypti mosquito 50 Varroa mite 50 Blustery winds 49 epiphytes 49 whiteflies 49 seedheads 49 Bacterial infections 49 tsetse fly 49 Y. pestis 49 cogon grass 49 contagious respiratory 49 Toxoplasma gondii 49 respiratory droplets 49 temperate climates 49 causes chickenpox 49 defoliating 49 sicken humans 49 malaria dengue fever 49 Formosan termites 49 huanglongbing 49 bollworms 49 psyllid 48 Migratory birds 48 Alternaria 48 cyclonic winds 48 Monkeypox 48 parasitic mites 48 Emerald ash borer 48 equatorial waters 48 sclerotinia 48 Poison ivy 48 Typhoid fever 48 ripening fruit 48 Easterly winds 48 defoliate 48 pine pollen 48 Ultraviolet light 48 wasp stings 48 temperate forests