Population Dynamics of Heliothis zea (Boddie)1 and H. virescens (F.) in North Carolina: A Simulation Model23

Abstract

A model is described for stimulation of the population dynamics of Heliothis spp. The salient features of the model include: (1) developmental means and variances about these means nonlinearly dependent on temperature; (2) separation of the general adult pool through adult attraction to spatially and temporally variant host-plant characteristics; and (3) cannabalism as a function of larval density, age-class structure within larvae, available feeding sites, and larval spatial distribution. Results of an initial simulation effort are also presented.