Related by context. Frequent words. (Click for all words.) 66 ryegrass 63 oilseed rape 62 broadleaf weeds 61 fungicide 59 foliar 59 powdery mildew 59 tillage 58 pigweed 57 whitefly 56 fungal diseases 56 fungicides 56 stripe rust 55 root rot 55 seed germination 55 thrips 55 germination 54 aphid 54 nematode 54 tall fescue 53 insect pests 53 fusarium 53 lucerne 53 spider mites 53 herbicide 53 weevil 53 cereal crops 53 broadleaf 53 nematodes 53 aphids 52 winterkill 52 weed seeds 52 crabgrass 52 cultivations 52 wheats 52 resistant varieties 51 varroa 51 sowings 51 borers 51 soil compaction 51 insect pest 51 herbicides 51 defoliation 50 midge 50 soybean rust 50 botrytis 50 pests 50 desiccation 50 woody plants 49 weevils 49 weeds 49 pest 49 perennial grasses 49 overwintering 49 Herbicide 49 Herbicides 49 knapweed 49 infestations 48 glyphosate 48 Fusarium 48 seedling 48 frost 48 thistles 48 crops 47 Bt 47 armyworms 47 cultivars 47 Asian soybean rust 47 invasive weed 47 grain sorghum 47 crop 47 fruiting 47 Glyphosate 47 soybean varieties 47 dieback 47 bolls 47 bracken 46 forages 46 fungal 46 insecticide 46 seeder 46 weed 46 sprayer 46 pyrethroids 46 drought tolerant 46 frosts 46 insect 46 fungal disease 46 Aphids 46 silage 46 moist soil 46 forage crops 45 insecticides 45 hydrilla 45 Miscanthus 45 stem rust 45 crop rotations 45 knotweed 45 fertilization 44 irrigated 44 Canker 44 gypsy moths