Related by context. Frequent words. (Click for all words.) 63 dieback 53 Canker 53 Powdery mildew 51 regrowth 51 Subtropical 50 cankers 50 beetle infestations 50 Fungal 48 Variegated 48 Spiny 46 Replanting 46 Dryness 45 Seagrass 45 Salinity 45 melaleuca 45 fireweed 44 Bleaching 44 Prunus 44 Pinus 44 Cortical 43 Fertilization 42 Thinning 42 staghorn 42 sooty mold 42 sweetgum 42 Lichens 41 tent caterpillars 41 montane 41 Vegetation 41 defoliation 41 Coral Reefs 41 oak wilt 41 regrows 40 coniferous trees 40 Morphology 40 insect infestations 40 aspen stands 40 shrubby 40 broad leafed 39 Cyanobacteria 39 denudation 39 Temperate 39 rampant deforestation 38 dentine 38 cambium 38 girdling 38 Scotch broom 38 beetle infestation 38 woody vegetation 38 overgrowing 38 bark beetle 38 aspen 38 Fertilizing 37 sweet clover 37 edema swelling 37 Biogeography 37 El Nino Southern Oscillation 37 Oscillation 37 bald patches 37 NASA MODIS Image 37 defoliating 37 brittle nails 37 cold hardiness 36 Long Term Ecological 36 conifer trees 36 beetle epidemic 36 nutrient deficiencies 36 woody plants 36 Acidity 36 conifer 36 birches 36 mixed conifer 36 spruce fir 36 Tropical 36 scaly skin 36 red maples 36 pine beetle infestation 35 Heavy Rains 35 thinning 35 coppicing 35 desiccation 35 seed germination 35 regrown 35 hackberry 35 Conductivity 35 oak hickory 35 Characterisation 35 Thickening 35 overgrowth 35 jack pine 35 Wadden Sea 35 Algal 34 crusting 34 pocket gophers 34 Bark beetles 34 conifers 34 red cockaded woodpecker 34 loblolly pines 34 Estuarine 34 pussy willow 34 Porpoise