Agricultural ResearchAgricultural Research Administration, U.S. Department of Agriculture, 1973 - Agriculture |
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acid acre agricultural engineer Agricultural Research Service AGRISEARCH NOTES alfalfa anaplasmosis animals aphid beans beetle Beltsville biological breeders breeding cabbage looper calves cattle cause cells Center chemical chemists commercial cooperation corn cost cotton cows crop culture developed diet disease earworm effective eggs entomologist Experiment Station feed feedlots females fertilizer field flies fruit fungicide genetic GOVERNMENT PRINTING OFFICE grain growth gypsy moth harvesting heat herbicide hybrid increase insecticide insects irrigation laboratory larvae losses male Marek's disease meat ment method MICHIGAN milk nitrate nitrogen nutrients nutritional oats parasites peanut percent pest Pesticides pheromone pigs plant plots pollution potatoes pounds produced protein reduced resistance resmethrin root runoff saline seeps samples scientists seed slurper soil soybean species spray sterile storage studies sugar sugarcane technician technique temperature tion treated treatment trees U.S.DEPARTMENT United vaccine varieties virus weevil wheat yields