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  • From: "Lawrence F. London, Jr." <lfl@intrex.net>
  • To: permaculture@lists.ibiblio.org
  • Subject: [permaculture] Fwd: Interesting snippet about forest gardening, pest control through insect diversity in agroforestry systems
  • Date: Thu, 12 Sep 2002 15:41:06 -0700

University of Missouri
Center for AGROFORESTRY
Faculty and Student Research
Research Abstracts
http://agebb.missouri.edu/umca/research.htm

Plant diversity and arthropod communities: implications for agroforestry
Stamps, W. T., Marc J. Linit
Polyculture in crop agroecosystems has been examined in numerous studies with
the aim of reducing
pest populations by increasing diversity among insect populations over those
found in traditional
monoculture. Resource concentration and enemies hypotheses predict decreased
pest populations
in more diverse plant communities. Although results have been mixed, insect
diversity has been
generally increased in polyculture over traditional monoculture. Maintaining
natural insect
diversity in managed forests to limit possible pest outbreaks has been the
goal in forestry
systems. Increased arthropod diversity with increased tree diversity has been
observed,
though fewer studies have been conducted in forestry compared to agriculture.
Agroforestry holds promise for increasing insect diversity and reducing pest
problems
because the combination of trees and crops provides greater niche diversity
and complexity
in both time and space than does polyculture of annual crops.





  • [permaculture] Fwd: Interesting snippet about forest gardening, pest control through insect diversity in agroforestry systems, Lawrence F. London, Jr., 09/12/2002

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