Related by context. Frequent words. (Click for all words.) 51 locust plague 48 stinkbugs 46 winged insects 46 mozzies 46 locusts 45 Migrating birds 45 swarms 45 sandflies 44 severe droughts 44 malaria cholera 44 bug zapper 44 skeeters 43 Brood X 43 Gypsy moths 43 locust invasion 43 locust swarms 43 Seasonal rains 43 prolonged droughts 42 gray goo 42 coastland 42 darkened skies 42 erupting volcanoes 42 eradicate malaria 42 breadbaskets 42 parched landscape 42 desert locusts 42 flea beetles 42 Stink bugs 42 grazing pastures 42 wildfires raged 42 Severe drought 42 Volcanic eruptions 42 Soil erosion 41 Mormon crickets 41 grasshoppers 41 cicadas 41 frequent droughts 41 prolonged drought 41 gypsy moth caterpillars 41 Incessant rains 41 periodical cicadas 41 species extinctions 40 yellowjackets 40 mosquito populations 40 Tidal waves 40 deciduous forests 40 ravage 40 tsetse fly 40 tsetse flies 40 tinderboxes 40 armyworm 40 insects 40 periodic droughts 40 parching 40 ladybirds 40 floods recede 40 Omo River 39 locust 39 Argentine ants 39 torrential storms 39 bollworm 39 mosquitoes 39 whitefly 39 Melting glaciers 39 blackflies 39 torrential rainstorms 39 bollworms 39 Cane toads 39 tinder dry brush 39 subtropical regions 39 cholera epidemics 39 sparsely inhabited 39 tent caterpillars 39 insect populations 39 Infestations 39 Isolated thunderstorms 39 Rolling blackouts 39 mosquitos 39 northward migration 39 pest insects 39 intensively farmed 38 Yangtze River basin 38 Droughts 38 floods droughts 38 delicate marshes 38 Indonesia sprawling archipelago 38 whiteflies 38 invasive insect 38 large swathes 38 moths 38 river deltas 38 Solar flares 38 glaciers melt 38 Sandhill cranes 38 resistant pathogens 38 ant hills 38 peat bog fires 38 round gobies 38 droughts 38 defoliate 38 sea lampreys