An ecological model to analyze and control the dynamics of the leafminer pest Tuta absoluta on tomato, Solanum lycopersicum

IF 5.6 1区 农林科学 Q1 ENTOMOLOGY
Daniele Bevacqua, Andrea Coppola, Renato Casagrandi
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引用次数: 0

Abstract

The South American insect Tuta absoluta is a significant leaf-mining pest for tomato plants (Solanum lycopersicum). In the last fifteen years, it has invaded and rapidly expanded across most European and African countries. This poses increasing threats to key tomato-growing regions worldwide. Despite the global significance of crop damages caused by T. absoluta, existing models have primarily focused on the developmental growth at the individual level, with limited consideration for population and community-level interactions, especially the plant-pest relationship. Here we introduce and discuss an ecological, process-based, mathematical model that accounts for the interdependent dynamics between a population of the herbivorous insect and the tomato plants it feeds on. The model explicitly integrates the impacts of water and nutrients availability, as well as temperature, on the growth of both insect and plant populations. After calibrating the model using empirical data, we find that its simulations can replicate different observed patterns. Leveraging the mechanistic nature of our approach, we analyze the combined effects of various temperature, fertilization/irrigation (fertigation) and biocontrol scenarios on (i) crop growth and (ii) the overall health of the production system. This enables us to identify knowledge gaps and to discuss the effectiveness and trade-offs associated with different management policies.
分析和控制番茄(Solanum lycopersicum)上潜叶蛾 Tuta absoluta 害虫动态的生态模型
南美昆虫 Tuta absoluta 是番茄植物(Solanum lycopersicum)的一种重要的采叶害虫。在过去的 15 年里,它已经入侵并迅速扩展到欧洲和非洲的大多数国家。这对全球主要番茄种植区构成了越来越大的威胁。尽管 T. absoluta 对全球农作物造成了重大损失,但现有模型主要关注个体层面的生长发育,对种群和群落层面的相互作用,尤其是植物与害虫之间的关系考虑有限。在此,我们介绍并讨论了一个基于过程的生态数学模型,该模型考虑了食草昆虫种群与它取食的番茄植物之间相互依存的动态关系。该模型明确整合了水和养分以及温度对昆虫和植物种群生长的影响。利用经验数据对模型进行校准后,我们发现其模拟结果可以复制不同的观测模式。利用我们方法的机理性质,我们分析了各种温度、施肥/灌溉(灌溉施肥)和生物防治方案对(i)作物生长和(ii)生产系统整体健康的综合影响。这使我们能够确定知识差距,并讨论与不同管理政策相关的有效性和权衡。
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来源期刊
Entomologia Generalis
Entomologia Generalis 生物-昆虫学
CiteScore
7.10
自引率
18.80%
发文量
72
审稿时长
>12 weeks
期刊介绍: Its scope covers all aspects of basic and applied research dealing with insects and more broadly with arthropods inhabiting wild, agricultural and/or urban habitats. The journal also considers research integrating various disciplines and issues within the broad field of entomology and ecology. Entomologia Generalis publishes high quality research articles on advances in knowledge on the ecology and biology of arthropods, as well as on their importance for key ecosystems services, e.g. as biological control and pollination. The journal devotes special attention to contributions providing significant advances (i) on the fundamental knowledge and on sustainable control strategies of arthropod pests (including of stored products) and vectors of diseases, (ii) on the biology and ecology of beneficial arthropods, (iii) on the spread and impact of invasive pests, and (iv) on potential side effects of pest management methods. Entomologia Generalis welcomes review articles on significant developments in the field of entomology. These are usually invited by the editorial board, but proposals may be sent to the Editor-in-Chief for preliminary assessment by the editorial board before formal submission to the journal. The journal also considers comments on papers published in Entomologia Generalis, as well as short notes on topics that are of broader interest.
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