Related by context. Frequent words. (Click for all words.) 70 soybean aphids 68 aphids 67 spider mites 66 aphid 66 whiteflies 65 whitefly 63 armyworms 63 cutworms 62 insect populations 62 nematodes 61 Aphids 61 stripe rust 61 nematode 61 defoliation 61 insect pests 61 insect pest 60 thrips 60 Soybean rust 59 pests 59 mosquito populations 59 stink bugs 58 soybean rust 58 Asian soybean rust 58 woody plants 58 foliar 58 caterpillars 58 winterkill 57 forbs 57 insects 57 defoliate 57 fungal spores 57 powdery mildew 57 fungus 57 infestations 56 perennial grasses 56 fungal diseases 56 insect 56 root rot 56 infestation 56 pigweed 56 mites 56 beneficial insects 56 overwintering 56 fungal disease 56 seed germination 55 tall fescue 55 knapweed 55 cheatgrass 55 beetles 55 stink bug 55 herbaceous plants 55 mycotoxin 55 borers 54 fungi 54 corn acreage 54 grasses 54 soybean acreage 54 soil pH 54 leafy spurge 54 bee populations 54 nitrogen fixation 54 pathogen 54 invasive weed 54 cereal crops 53 lady beetles 53 forage 53 saturated soils 53 gypsy moths 53 fungicides 53 corn rootworm 53 soybean planting 53 weevils 53 purple loosestrife 53 crop yields 53 ryegrass 53 spores 53 varroa 53 carpenter ants 53 pest 53 fusarium 53 psyllids 53 understory 52 pyrethroids 52 broadleaf weeds 52 cotton acreage 52 insect infestations 52 bolls 52 fungicide 52 soybean crop 52 hatchings 52 Didymo 52 midge 52 leaf litter 52 weed seeds 52 mountain pine beetles 52 ragweed 52 Miscanthus 52 varroa mite 52 dieback 51 overwinter 51 oilseed crops