The sweetpotato whitefly Bemisia tabaci Q species is a recent invader and important pest of agricultural crops in China. This research tested the hypothesis that the Q populations that establish in agricultural fields in northern China each year are derived from multiple secondary introductions and/or local populations that overwinter in greenhouses (the pest cannot survive winters in the field...

The paper describes the design of an environment monitoring system supporting the development of black-box model based greenhouse climate control. Despite many currently available control schemes, only black-box modelling can be carried out efficiently for small or medium size greenhouses. For this large amount of measurements is needed, calling for a new distributed measurement system architec...

This paper presents a multi-objective procedure based on a fully elitist genetic algorithm, GA, able to optimize the radiative heat transfer inside greenhouses used to grow crops. Details of the genetic algorithm used is presented herein but the focus is on the heat transfer. The decision variables are the tube temperature and tube radius, that affects directly the entalphy heating flow, and th...