Nemec adaptive management for ecosystems
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Transcript of Nemec adaptive management for ecosystems
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Kristine T. Nemec and Jonathan G. LundgrenUSDA‐ARS, Brookings, South Dakota
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Source: Agweb.com
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Plant diversity in agroecosystems
More efficient control of pests and diseases but not always
(Bone et al. 2009, Danne et al. 2009, Ratnadass et al. 2012)
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3x higher squash bee density in no‐tillage squash and pumpkin farms than in tilled farms(Shuler et al. 2005)
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1. Set goals2. Take action3. Measure progress towards goals4. Adjust objectives and strategies based on what is
learned
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Pesticide costs = ~$20‐$50/acre for traditional corn/soybean rotation (Iowa State University 2014, U. of Illinois 2014)
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Source: Purdue Extension Entomology
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1. Set goals2. Take action3. Measure progress towards goals4. Adjust objectives and strategies based on what is
learned
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S.. Wortman, UNL
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1. Set goals2. Take action3. Measure progress towards goals4. Adjust objectives and strategies based on what is
learned
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Record control measures: dates weather conditions pest levels application
U. of Minnesota
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National no‐till conference
No‐till on the Plains ManDak no‐till conference
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1. Set goals2. Take action3. Measure progress towards goals4. Adjust objectives and strategies based on what
is learned
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Adaptive management can be applied at the farm‐level scale to improve populations of beneficial insects to improve crop yields and reduce pest damage
More research is needed on the responses of beneficial insects to different cover cropping practices