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Diverse Landscapes Curtail Crop Pests

Agricultural researchers traditionally focus their studies at the field level. By casting a wider net, KBS scientists have discovered how plant diversity in surrounding landscapes enhances habitat for predators of agricultural pests. Those predators can reduce pesticide use and avert yield loss worth millions of dollars annually.

Costamagna, A. C. and D. A. Landis. 2006. Predators exert top-down control of soybean aphid across a gradient of agricultural management systems. Ecological Applications 16:1619-1628.
Landis, D. A., M. M. Gardiner, W. van der Werf, and S. M. Swinton. 2008. Increasing corn for biofuel production reduces biocontrol services in agricultural landscapes. Proceedings of the National Academy of Sciences 105:20552-20557.
Isaacs, R., J. Tuell, A. Fiedler, M. Gardiner, and D. Landis. 2009. Maximizing arthropod-mediated ecosystem services in agricultural landscapes: The role of native plants. Frontiers in Ecology and the Environment 7:196-203.
Meehan, T. D., B. P. Werling, D. A. Landis, and C. Gratton. 2011. Agricultural landscape simplification and insecticide use in the Midwestern U.S. Proceedings of the National Academy of Sciences 108:11500- 11505.
Woltz, M. J., R. Isaacs, and D. A. Landis. 2012. Landscape structure and habitat management differentially influence insect natural enemies in an agricultural landscape. Agriculture, Ecosystems and Environment 152:40-49.
Dr. Doug Landis
Multicolored Asian lady beetles prey on soybean aphids at the Kellogg Biological Station LTER site.
K. Stepnitz
Relationship between the biocontrol services index (BSI) in soybean fields and proportion of corn in the local landscape [1.5 -km radius].
Landis et al. 2008

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