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Agroecology pp 70-82 | Cite as

Diversification of Agroecosystems for Insect Pest Regulation: Experiments with Collards

  • Miguel A. Altieri
  • David L. Glaser
  • Linda L. Schmidt
Part of the Ecological Studies book series (ECOLSTUD, volume 78)

Abstract

Many studies have been conducted on agricultural systems to test the hypothesis that increased vegetational diversity fosters stability in the insect community. In a recent review of the available world literature, Andow (1983) found that in a total of 617 examples, the population densities of 66% of the monophagous herbivores studied decreased in the diversified system when compared to the corresponding monoculture. Many studies reported that predator and parasite diversity and abundance paralleled an increase in plant diversity. Others reported that the associated plant species had direct effects on the ability of herbivores to find and utilize their host plants (Table 5.1).

Keywords

Ground Beetle International Rice Research Institute Vegetational Diversity Flea Beetle Aphid Density 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag New York Inc. 1990

Authors and Affiliations

  • Miguel A. Altieri
  • David L. Glaser
  • Linda L. Schmidt

There are no affiliations available

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