We consider a population dynamics model in investigating data from controlled experiments with aphids in broccoli patches surrounded by different margin types (bare or weedy ground) and three levels of insecticide spray (no, light, or heavy spray). The experimental data is clearly aggregate in nature. In previous efforts , the aggregate nature of the data was ignored. In this paper, we embrace this aspect of the experiment and correctly model the data as aggregate data, comparing the results to the previous approach. We discuss cases in which the approach may provide similar results as well as cases in which there is a clear difference in the resulting fit to the data.
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Banks, H. T.; Banks, John E.; Catenacci, Jared; Joyner, Michele; and Stark, John. 2020. Correctly Modeling Plant-Insect-Herbivore-Pesticide Interactions as Aggregate Data. Mathematical Biosciences and Engineering. Vol.17(2). 1743-1756. https://doi.org/10.3934/mbe.2020091 PMID: 32233605 ISSN: 1547-1063