Related by context. Frequent words. (Click for all words.) 64 mealybug 60 fungus 59 mealybugs 59 whitefly 59 Gypsy moths 58 hemlock trees 58 whiteflies 57 adelgids 57 Emerald ash borer 57 invasive insect 56 sawfly 56 gypsy moth caterpillars 56 Phragmites 56 weevil 56 adelgid 56 loosestrife 55 insect pest 55 tulip tree 55 hogweed 55 beetle 55 fungal disease 55 downy mildew 55 melaleuca 55 walnut trees 55 weevils 55 Aphids 55 alfalfa fields 54 spotted knapweed 54 Feral hogs 54 cutworms 54 boll weevils 54 brown marmorated stink bug 54 pine seedlings 54 bollworms 54 Asian longhorned beetle 54 aphid 54 insect 54 hemlock woolly adelgid 54 borers 54 cycad 54 saltcedar 53 Scotch broom 53 feral pig 53 spider mites 53 beetle infestation 53 varroa mites 53 bagworms 53 European corn borer 53 Phytophthora 53 knapweed 53 mealy bug 53 Africanized honeybees 52 Argentine ants 52 psyllid 52 beetle larvae 52 knotweed 52 nematode 52 barberry 52 acacias 52 European grapevine moth 52 invasive weed 52 invasive pest 52 beetles 52 anthracnose 52 pampas grass 52 deciduous tree 52 infestation 52 phylloxera 52 root rot 52 foxtail 51 salt cedar 51 Invasive plants 51 Canker 51 cankers 51 noxious weed 51 feral pigs 51 Japanese knotweed 51 Infestations 51 leafy spurge 51 glassy winged sharpshooter 51 Soybean rust 51 aphids 51 Hydrilla 51 transgenic corn 50 gypsy moths 50 fireweed 50 giant hogweed 50 pine plantations 50 oxalis 50 parasitic wasps 50 stink bug 50 tiger mosquito 50 bromeliad 50 hackberry 50 tamarisk 50 Nematodes 50 vetch 50 mulberry tree 50 vinifera 50 evergreen shrub 50 nematodes