Detecting and Responding to Resource and Stimulus during the Movements of Cryptolestes ferrugineus Adults

An understanding of insect movement and distribution within grain bulks is essential to effectively control insect pests. The aim of this review was to (1) identify the major and minor factors influencing the movement of adults of Cryptolestes ferrugineus and to (2) analyze their ability of resource detecting and cue orienting. Their response to major and minor environmental factors was related with the general features of the grain storage environment, their development requirement, and their ability of cue orienting and detecting. Their movement inside stored grain bins and in small-scale chambers was compared. Incompleteness of our current knowledge regarding their movement and cue detection under multi-factors is the main reason why we cannot predict yet their dispersal and distribution inside granaries accurately.