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Integrated Pest Management (Cultural)

Integrated Pest Management (Cultural). Twice-over Rotational Grazing Systems (Manske and Onsager) Concept (plant) Primary: Increase tiller development Increase nutrient cycling Secondary: Increase plant density Increase aboveground biomass Increase nutritional quality

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Integrated Pest Management (Cultural)

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  1. Integrated Pest Management(Cultural) • Twice-over Rotational Grazing Systems • (Manske and Onsager) • Concept (plant) • Primary: Increase tiller development • Increase nutrient cycling • Secondary: Increase plant density • Increase aboveground biomass • Increase nutritional quality • Reduce amount of bare soil

  2. Integrated Pest Management(Cultural) • Twice-over Rotational Grazing Systems • (Manske and Onsager) • Concept (grasshoppers) • Increasing plant cover: Cools the microhabitat THUS slowing insect development Increases microhabitat humidity THUS increasing fungal epizootics

  3. Integrated Pest Management (Cultural)Twice-over Rotational Grazing System(Manske and Onsager) • Results: • Habitat dynamics • Increased basal cover from 30% to 40% • Decreased bare ground from 15% to 5% • Increased production from 730 to 1460 kg/ha • Grasshopper dynamics • Elimination of A. elliotti and A. deorum • Reduced density from 11 to 4 gh/m2 • Density reduced by 15% for 3 years

  4. Grasshopper Integrated Pest Management User HandbookV. Rangeland Management • V.1 The Importance of Grazing Strategies to Grasshopper Management: An Introduction — Jerome A. Onsager • V.2 Historical Trends in Grasshopper Populations in Southern Idaho — Dennis J. Fielding and M. A. Brusven • V.3 Associations Between Grasshoppers and Plant Communities on the Snake River Plains of Idaho — Dennis J. Fielding and M. A. Brusven • V.4 Utilization of Nonnative Rangeland Plants by Grasshoppers on the Snake River Plains of Idaho — Dennis J. Fielding and M. A. Brusven • V.5 Local Movement of Grasshoppers Between Public Rangeland and Irrigated Pastures in Southern Idaho — M. A. Brusven, Dennis J. Fielding, Leslie P. Kish, and Russell C. Biggam • V.6 Grazing Effects on Grasshopper Populations in Southern Idaho — Dennis J. Fielding and M. A. Brusven • V.7 Beneficial Changes of Rangeland Through Proper Grazing — Llewellyn L. Manske • V.8 Herbage Production, Phenology, and Soil Moisture Dynamics for Plant Communities in Western North Dakota — Daniel W. Uresk and Ardell J. Bjugstad • V.9 Simulation of Near-Surface Soil Temperature on Rangelands — F. B. Pierson, J. R. Wight, G. N. Flerchinger, W. P. Kemp, and J. R. Fisher

  5. Dr. David Branson • USDA-ARS Northern Plains Agriculture Research Laboratory • P.O. Box 463 Sidney, MT 59270 • PH: 406-433-2020 • Is continuing research on habitat manipulation through livestock grazing to manage grasshoppers. www.sidney.ars.usda.gov/grasshopper/index.htm

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