Spatial variation in insect populations and site-specific integrated pest management

Shelby J. Fleischer, Randall Weisz, Z. Smilowitz, D. Midgarden

Research output: Chapter in Book/Report/Conference proceedingChapter

27 Citations (SciVal)


Insect populations exhibit dramatic and dynamic spatial variation in density and in the location of intraspecific phenotypes. This spatial variation is caused by the interaction between population dynamics, population genetics, and the biotic and abiotic environment. Processes that are relevant to population densities in agricultural settings include immigration, colonization, reproduction, emigration, and mortality. Immigration, colonization, and reproduction are part of population growth, whereas emigration and mortality cause population decline. Sampling insect populations becomes a foundation for integrated pest management (IPM), and sampling will probably be an even greater part of site-specific IPM. Entomological research for estimating insect density in the presence of spatial variation has been on-going for several decades. This chapter reviews how spatial variation has traditionally been approached, and considers how this will need to be modified for designing site-specific sampling programs. It also presents an example of developing a sampling program for site-specific IPM in potatoes.

Original languageEnglish (US)
Title of host publicationThe State of Site-Specific Management for Agriculture
Number of pages30
ISBN (Electronic)9780891182627
ISBN (Print)9780891181347
StatePublished - Nov 2 2015

All Science Journal Classification (ASJC) codes

  • General Engineering
  • General Agricultural and Biological Sciences


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