Related by context. Frequent words. (Click for all words.) 69 Powdery mildew 68 overwinters 67 Pythium 67 Spider mites 66 fungal pathogen 66 Thrips 66 cankers 65 regrows 64 cambium 64 P. ramorum 64 pathogenic fungi 64 webworms 64 spider mite 63 apple scab 63 xylem 63 Borrelia 63 protozoan parasite 63 mealy bugs 62 Phytophthora 62 hyphae 62 flea beetle 62 moth larvae 62 spruce budworm 62 tent caterpillars 62 reproduce asexually 61 springtails 61 protozoan 61 leaf beetle 60 Genetic mutations 60 leafhoppers 60 sicken humans 60 Hessian fly 60 poison sumac 60 fungal pathogens 60 anthracnose 60 vegetations 60 phloem 60 mycobacterium 60 sooty mold 59 defoliate 59 colonizes 59 parasitized 59 parasitic worm 59 herbivory 59 Burkholderia 59 larvae hatch 59 woody shrubs 59 spirochete 59 sapwood 59 Aphid 59 fungus 59 Anopheles 59 nutrient uptake 59 bagworms 59 Gypsy moth 59 Nematodes 59 Rickettsia 58 cutworm 58 Genetic variation 58 defoliating 58 subsp 58 pest insects 58 rust fungus 58 mycorrhizal fungi 58 sucking pests 58 Fungal 58 Toxoplasma gondii 58 unfertilized 58 T. cruzi 58 waterhemp 58 Alternaria 58 aphid populations 58 mealybugs 58 Borrelia burgdorferi 58 desiccation 57 diapause 57 leguminous 57 aspergillosis 57 fruiting bodies 57 fungal disease 57 gastrointestinal tracts 57 midgut 57 sawfly 57 Bt toxin 57 overgrow 57 Phytophthora ramorum 57 genetic alteration 57 pigment melanin 57 cone snails 57 plant Arabidopsis thaliana 57 diseased 57 soybean cyst nematode 57 broad leaved 57 foxtails 57 cucurbits 57 pokeweed 57 nitrogen fertilization 57 Citrus canker 57 larval stages 56 plasmodium 56 dieback