Related by context. Frequent words. (Click for all words.) 57 superweeds 56 mealybug 56 chestnut blight 56 Soil erosion 56 potato blight 56 stem rust 56 Stink bugs 56 bollworm 55 pellagra 55 Bubonic Plague 55 mealy bug 55 fungal pathogen 55 leaf beetle 55 bollworms 54 locust plague 54 flea beetles 54 insect pest 54 downy mildew 53 apple scab 53 pest infestation 53 malaria cholera 53 Infestations 53 leaf curl 53 plague 53 fungal disease 52 Soybean rust 52 phylloxera 52 invasive insect 52 tent caterpillars 52 leaf blight 52 armyworm 52 Emerald ash borer 52 Gypsy moths 52 anthracnose 51 diseases afflicting 51 pink bollworm 51 Phytophthora 51 winterkill 51 apple moth 51 beetle infestations 51 leafhoppers 51 pestilence 51 stinkbugs 51 locust invasion 51 periodic droughts 51 fungus 50 insect infestations 50 Peanut allergies 50 trigger allergic reactions 50 root rot 50 Phytophthora ramorum 50 glyphosate resistant 50 herbicide resistant crops 50 virulent strains 50 leaf rust 50 disease 50 boll weevils 50 Genetic modification 50 Feral hogs 50 Peanut allergy 50 epidemics 50 stripe rust 49 Aphids 49 armyworms 49 Nematodes 49 Methyl bromide 49 severe droughts 49 fungal diseases 49 Canker 49 citrus greening disease 49 varroa mite 49 blight 49 European corn borer 49 ergot 49 Ebola hemorrhagic fever 49 dropsy 49 nutritional deficiency 49 tsetse flies 49 pests 49 moth larvae 49 mealy bugs 48 fireblight 48 powdery mildew 48 insect borne diseases 48 Severe drought 48 invasive pests 48 prolonged droughts 48 pest infestations 48 blackleg 48 defoliating 48 glyphosate resistance 48 Droughts 48 bamboo flowering 48 infestations 48 resistant varieties 48 defoliate 48 sawfly 47 cutworms 47 famines 47 scourge 47 ecological disasters