Related by context. Frequent words. (Click for all words.) 65 Spider mites 61 Powdery mildew 61 Thrips 61 protozoans 60 Invasive plants 60 Genetic mutations 60 Mold spores 60 Nematodes 60 decomposers 59 fruiting bodies 59 By Laurie Kulikowski 59 fungus spores 58 Dust mites 58 seedheads 58 Aphids 58 Vernal pools 58 microscopic organism 58 By Laurelle Gilbert 58 viruses bacteria fungi 58 hyphae 58 fungi 58 pathogenic fungi 57 Purple loosestrife 57 insects reptiles 57 symbioses 57 www.merriam webster.com 57 pathogenic strains 57 IntergalaticEarth 57 Pythium 57 epiphytes 57 Crape myrtles 56 Stink bugs 56 silicate minerals 56 By TheStreet Wire 56 neural crest cells 56 Flowering plants 56 biosignatures 56 horsetails 56 Coral bleaching 56 plantlife 56 bacteria viruses fungi 56 organic mulches 56 mycorrhizae 56 broad leaved 56 springtails 56 papillomas 55 reproduce asexually 55 deciduous shrubs 55 Fruit flies 55 endophytes 55 wormlike 55 metazoan 55 coral polyps 55 biting midges 55 undesirable traits 55 sooty mold 55 photosynthesizing 55 webworms 55 B. subtilis 55 woody stems 55 coevolution 55 primitive organisms 55 By RICK KRETZSCHMAR 55 pasture grasses 55 Penicillium 55 zooxanthellae 55 vegetations 55 frass 55 Ultraviolet light 55 By Riva Froymovich 55 cucumber beetles 55 Migrating birds 55 pigment melanin 55 waxy coating 55 Candida species 55 Melanomas 54 organisms 54 liverworts 54 funguses 54 invertebrate animals 54 eukaryote 54 bacterium Escherichia coli 54 Meteor showers 54 Rickettsia 54 poison sumac 54 mycelium 54 Genital warts 54 Noxious weeds 54 microorganisms 54 leafhoppers 54 multicellular organism 54 insects 54 bees wasps 54 morphologies 54 commensal 54 By NATHAN BRUTTELL 54 unicellular 54 Y. pestis 54 parasitize 54 bacterias 54 Mulches