Engineering-based Copmuter Simulation for Modeling Greenhouse Whitefly Population Growth

Mathematical simulation model is very suitable to understand insect dynamical systems. This system is nonlinear and it is hard to deal with by pure mathematical models only. It offers a possibility to recognize possible gaps in our knowledge. A simulation model of immature stages development of greenhouse whitefly Trialeurodes vaporariorum (westwood) population is presented. The parameters, variables, selection of data used for the model and the formulation of equations are discussed. A network form and a program listing are provided with technical details on modeling with SLAM II software. To validate model there were two data sets available to compare the model result with. The data came from experiments that were carried out in greenhouse environment. In first experiment there were followed and recorded the numbers of developmental stages of two sets of 106 and 115 whitefly eggs on tomato leaves daily. In second experiment there were followed and recorded the numbers of empty pupa of two sets of 100 and 115 whitefly eggs on tomato leaves in 80 and 90 days respectively. Numerical results and graphs from model and greenhouse condition are compared presented.