The spatio-temporal dynamics of insect pests in agricultural landscapes involves the potential of species to move, invade, colonise, and establish in different areas. This study revised the dispersal of the important crop pests Diabrotica speciosa Germar and Spodoptera frugiperda (J.E. Smith) by using computational modelling to represent the movement of these polyphagous pests in agricultural mosaics. The findings raise significant questions regarding the dispersal of pests through crops and refuge areas, indicating that understanding pest movement is essential for developing strategies to predict critical infestation levels to assist in pest-management decisions. In addition, our modelling approach can be adapted for other insect species and other cropping systems despite discussing two specific species in the current manuscript. We present an overview of studies, combining experimentation and ecological modelling, discussing the methods used and the importance of studying insect movement as well as the implications for agricultural landscapes in Brazil.

农业景观中害虫的时空动态涉及物种在不同地区移动、入侵、殖民和建立的潜力。本研究修订了重要农作物害虫Diabrotica speciosa Germar 和Spodoptera frugiperda的传播(JE Smith) 通过使用计算模型来表示这些杂食性害虫在农业马赛克中的运动。研究结果提出了关于害虫通过作物和避难区传播的重大问题，表明了解害虫运动对于制定预测关键侵染水平以协助害虫管理决策的策略至关重要。此外，尽管在当前手稿中讨论了两个特定物种，但我们的建模方法可以适用于其他昆虫物种和其他种植系统。我们概述了研究，结合了实验和生态建模，讨论了使用的方法和研究昆虫运动的重要性以及对巴西农业景观的影响。