results of a nationwide survey to determine feedstuffs fed to lactating dairy cows.a nationwide survey to determine feedstuffs used in the diets of dairy cows was conducted. this survey was mailed to dairy nutritionists at universities in each state to describe the use of 144 feedstuffs. twenty-eight states responded and were grouped by region as follows: northeast (maine, maryland, new hampshire, new york, ohio, vermont, and west virginia), northwest (idaho, oregon, and washington), midwest (iowa, illinois, michigan, minnesota, missouri, nebraska, north dakota, south dakota, ...199910068966
the corn-skin connection. 200920128178
effectiveness of corn rootworm (coleoptera: chrysomelidae) areawide pest management in south dakota.diabrotica barberi smith & lawrence and diabrotica virgifera virgifera leconte (coleoptera: chrysomelidae) are serious pests of maize, zea mays l. to reduce the amount of toxicants released into the environment, the agricultural research service implemented a 5-yr (1997-2001) areawide pest management program in five geographic locations, including one in south dakota. the objective was to use integrated pest management tactics to suppress adult diabrotica populations over a broad geographic area ...200717972631
phenology and abundance of bean leaf beetle (coleoptera: chrysomelidae) in eastern south dakota on alfalfa and soybean relative to tillage, fertilization, and yield.phenology and abundance of bean leaf beetles, cerotoma trifurcata (förster), were examined throughout two eastern south dakota growing seasons in relation to grain yields in chisel- and ridge-tilled soybeans [glycine max (l.) merrill] grown in 2-yr rotation with corn (zea mays l.) with and without added nitrogen (n). populations were also sampled early and late season in alfalfa (medicago sativa l.). beetles were present in alfalfa by late may and most were reproductively active within a week, b ...201020550786
landscape features and spatial distribution of adult northern corn rootworm (coleoptera: chrysomelidae) in the south dakota areawide management site.the northern corn rootworm, diabrotica barberi smith & lawrence (coleoptera: chrysomelidae), creates economic and environmental concerns in the corn belt. to supplement the population control tactics of the areawide pest management program in brookings, sd, geographic information systems were used from 1997 to 2001 to examine the spatial relationships between d. barberi population dynamics and habitat structure, soil texture, and elevation. using the inverse distance weighted interpolation techn ...200415666749
nontarget arthropod abundance in areawide-managed corn habitats treated with semiochemical-based bait insecticide for corn rootworm (coleoptera: chrysomelidae) control.impacts of semiochemical-based insecticidal bait applications on beneficial arthropod groups common to field corn, zea mays l., habitats were assessed in areawide-managed field sites in south dakota and iowa during 1997 and 1998. slam, a commercial bait formulation comprised of 87% cucurbitacin and 13% carbaryl insecticide, was used for management of adult rootworm, diabrotica spp., and controls consisted of cornfield habitats without bait applications. effects on beneficial organisms were varia ...200516539120
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