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Modelling herbivore movement and colonization: pest management potential of intercropping and trap cropping
Author(s) -
Banks John E.,
Ekbom Barbara
Publication year - 1999
Publication title -
agricultural and forest entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.755
H-Index - 55
eISSN - 1461-9563
pISSN - 1461-9555
DOI - 10.1046/j.1461-9563.1999.00022.x
Subject(s) - intercropping , cropping , biology , herbivore , colonization , agroforestry , pest analysis , trap (plumbing) , ecology , integrated pest management , agronomy , agriculture , botany , geography , meteorology
1 Using a stochastic simulation model, we explored the effects of agroecosystem diversity on herbivore densities. 2 Using parameters that included reproduction, colonization, and local movement rates, we simulated an insect herbivore population colonizing rows of plants in an agricultural setting. 3 Plant rows were comprised of either principal crop, intercrop, or trap crop. Herbivore parameters varied for different plant types. 4 Percent crop cover and movement rates were varied, and ensuing herbivore densities on crop rows were recorded. 5 In trap cropping schemes, both percent crop cover and movement rates were critical in determining herbivore densities. Intercropping schemes were governed primarily by colonization rates. 6 These results suggest that trap cropping schemes merit more attention than intercropping systems in the design and analysis of mixed cropping systems.