Related by context. Frequent words. (Click for all words.) 60 inoculum 59 nematodes 58 nematode 57 nitrogen fixation 56 Bt toxin 56 whitefly 56 bollworm 55 Phytophthora 55 aphid 55 woody plants 55 nutrient uptake 55 soybean aphid 54 downy mildew 54 genetic variability 54 cutworms 54 insect populations 54 leaf rust 53 crop yields 53 rootworm 53 herbaceous plants 53 soils 53 soybean aphids 53 soil fertility 52 fungal pathogens 52 root rot 52 insect pests 52 perennial ryegrass 52 pigweed 52 seed germination 52 vetch 52 tall fescue 52 mycotoxin 52 anthracnose 52 aphids 52 nutrient deficiency 52 chinch bugs 51 seeds germinate 51 stripe rust 51 mealybugs 51 nutrient deficiencies 51 weed seeds 51 whiteflies 51 Nematodes 51 nitrogen fixing 51 resistant varieties 51 Soybean rust 51 bermudagrass 51 fungal spores 51 defoliate 51 perennial grasses 51 harvested acreage 51 grasses 51 soil compaction 51 forbs 51 genetic diversity 51 fungus 50 conservation tillage 50 soil pH 50 duckweed 50 pathogen 50 salvinia 50 corn rootworm 50 bioactivity 50 atmospheric nitrogen 50 salt tolerant 50 desiccation 50 foliar 50 Fungicides 50 sandy soils 50 insect pest 50 ryegrass 50 forage crops 50 corn borer 49 defoliation 49 powdery mildew 49 fungi 49 spider mites 49 oilseed crops 49 nutrient runoff 49 nutritive value 49 brassicas 49 adelgids 49 crop residues 49 mycelium 49 cankers 49 thrips 49 clay soils 49 cultivars 49 herbicide resistant 49 agronomic practices 49 crop residue 49 leaf curl 48 alkaline soil 48 biofuel feedstock 48 genomic sequence 48 Wolbachia 48 transgenes 48 red clover 48 soil moisture 48 salinity 48 stover