Related by context. Frequent words. (Click for all words.) 50 spray insecticide 50 sprayings 50 spraying 48 fumigations 47 herbicides 47 pesticides fertilizers 47 topdressing 47 fumigate 46 spraying pesticides 46 sprayed 45 herbicide 45 herbicide spraying 45 disking 45 spraying insecticide 44 shelterbelts 44 inorganic fertilizers 44 herbicides pesticides 44 pesticides herbicides 43 defoliating 43 sprayer 43 defoliate 43 leafhoppers 43 fertilizers pesticides 43 fumigation 42 spray 42 Rotenone 42 weed killers 42 sprayers 42 ammonium chloride 41 diazinon 41 agrichemicals 41 fumigants 41 carbaryl 41 sprays 41 weedkillers 41 wheat stubble 41 defoliated 41 Herbicides 41 fumigating 40 recharge groundwater 40 fumigated 40 uprighted 40 crop dusters 40 Fumigation 40 rodenticides 40 aerial spraying 40 overwater 40 Controlled burns 40 fertilizer 40 polluting groundwater 40 Methyl bromide 40 insecticide 40 irrigations 40 mow grass 40 fertilizers 39 sediment runoff 39 sprayed foam 39 irrigating 39 Aerial spraying 39 discharging wastewater 39 pyrethrins 39 pesticides 39 freshly plowed 39 Fertilizing 39 fertilizing 39 pesticide 39 aerate 39 deforest 39 Palmer amaranth 39 cultivations 39 contaminating groundwater 39 dieldrin 39 seed germination 39 deicer 39 fecal material 39 chemical sprays 39 pesticide spraying 38 fertilize 38 organophosphate 38 biosolid 38 Grass clippings 38 Malathion 38 pest infestations 38 larvicides 38 glyphosate resistant 38 mold fungi 38 defoliation 38 planting 38 pyrethroids 38 coca crops 38 mechanical harvesters 38 dewatered 38 toxic pesticides 38 chemicals 38 stormwater discharges 38 manures 38 animal droppings 38 Spraying 37 dug trench 37 synthetic pesticides 37 insecticides