Temperature dependent model simulation of greenhouse whitefly and American serpentine leafminer in cherry-tomato greenhouses using microclimate temperature

The population dynamics of greenhouse whitefly and American serpentine leafminer were simulated using DYMEX model simulator with macro- and microclimate temperature conditions of greenhouses based on the temperature dependent-development and oviposition models. The relationship between air and microclimate (down-side of leaflet surface) temperatures were evaluated and fitted by nonlinear regression at three vertical positions (up, middle and bottom position) in cherry-tomato plant. The up position was set >1.6m, the middle position was set 0.9~1.2m, and the bottom position was set 0.3~0.5m above the ground level, respectively. The air and microclimate temperature data for DYMEX simulation were prepared using nonlinear relationship based on the average temperature data of Choongchungnamdo province, Korea. The simulation of two species'dymamics using air temperature showed rapid fluctuation and increasing densities, however, stable and consecutive fluctuation and increasing densities were observed on both species in the simulation using microclimate temperature data.