Related by context. Frequent words. (Click for all words.) 59 root rot 59 infestations 57 gypsy moth 57 frosts 57 aphids 55 powdery mildew 55 gypsy moths 55 fruiting 55 infestation 55 caterpillars 55 woody plants 55 ryegrass 54 aphid 53 fungicide 53 fungicides 53 thrips 52 herbicides 52 fungal disease 52 deciduous trees 51 germination 51 insect infestation 51 beetles 51 understory 51 ragweed 51 plantings 51 insect pests 51 herbicide 51 pollination 50 nematode 50 hardwood trees 49 prescribed burns 49 replanting 49 mosquito populations 49 pruning 49 regrowth 49 Spraying 48 overwintering 48 hemlocks 48 frost 48 planting 48 fertilizing 48 flowering 48 foliage 48 soybean rust 48 bark beetles 48 flower buds 48 aerial spraying 47 vegetation 47 aspen 47 stink bugs 47 reseed 47 tillage 47 nematodes 47 fungus 47 junipers 47 mountain pine beetle 47 beetle 47 Asian soybean rust 47 elm trees 47 pine beetle 47 maples 47 seedlings 47 fertilization 46 rainfall 46 ash trees 46 insect 46 timber harvest 46 deer ticks 46 dryness 46 glyphosate 46 trees 46 Grasses 46 beneficial insects 46 pests 45 corn acreage 45 borer 45 weevils 45 ash borer 45 crabgrass 45 blooms 45 invasives 45 seedling 45 dry spells 45 conifer 45 resistant varieties 45 Planting 45 conifers 45 overwinter 45 tree canopy 45 grasses 45 grasshoppers 45 wasps 45 poison ivy 44 Dutch elm disease 44 pollen 44 mulches 44 insects 44 elms 44 harvests 44 pest 44 pecan trees