Related by context. Frequent words. (Click for all words.) 64 hemlock trees 62 gypsy moth caterpillars 61 hemlock woolly adelgid 61 adelgids 60 Gypsy moths 59 Emerald ash borer 58 adelgid 58 beetle infestation 57 Asian longhorned beetle 57 purple loosestrife 57 bark beetle 57 oxalis 56 insect 56 knapweed 56 fungus 56 beetle 56 beetles 55 spotted knapweed 55 saltcedar 55 borers 55 bark beetles 55 barberry 55 pine beetles 54 insect pests 54 Scotch broom 54 Phytophthora 54 insect infestations 54 gypsy moths 54 hemlock 54 insects 54 hemlocks 54 fungal disease 53 invasive weed 53 Milfoil 53 whitefly 53 loosestrife 53 Japanese knotweed 53 Mountain Pine Beetle 53 lodgepole 53 mealybugs 53 gypsy moth 52 mountain pine beetles 52 tamarisk 52 infestation 52 Eurasian milfoil 52 pests 52 salt cedar 52 chinch bugs 52 whiteflies 52 beetle larvae 52 spurge 52 Hydrilla 52 weevils 51 hardwood trees 51 defoliation 51 parasitic wasps 51 White Nose Syndrome 51 insect pest 51 hackberry 51 spider mites 51 anthracnose 51 defoliate 51 Sudden Oak 51 Emerald Ash Borer 51 leafy spurge 51 forbs 51 caterpillars 51 infestations 51 Infestations 51 fireweed 51 knotweed 50 invasive pest 50 Virginia creeper 50 aphid 50 hickories 50 crabapple 50 carpenter ants 50 weevil 50 ash borer 50 fungal spores 50 sucking insects 50 evergreen shrub 50 Aphids 50 lodgepole pine 50 buckthorn 50 mealy bug 50 aphids 49 crabapples 49 insect borne 49 European corn borer 49 maples 49 pine beetle 49 bindweed 49 phragmites 49 skeeters 49 bollworm 49 Voles 49 foxtail 49 river birch 49 emerald ash borers 49 cheatgrass