A model for the corn rootworm Diabrotica spp. combined with a temporally explicit model for development of corn roots across the soil profile was developed to link pest ecology, root damage and yield loss. Development of the model focused on simulating root damage from rootworm feeding in accordance with observations in the field to allow the virtual testing of efficacy from management interventions in the future. We present the model and demonstrate its applicability for simulating root damage by comparison between observed and simulated pest development and root damage (assessed according to the node injury scale from 0 to 3) for field studies from the literature conducted in Urbana, Illinois (US), between 1991 and 2014. The model simulated the first appearance of larvae and adults to within a week of that observed in 88 and 71 % of all years, respectively, and in all cases to within 2 weeks of the first sightings recorded for central Illinois. Furthermore, in 73 % of all years simulated root damage differed by <0.5 node injury scale points compared to the observations made in the field between 2005 and 2014 even though accurate information for initial pest pressure (i.e. number of eggs in the soil) was not measured at the sites or available from nearby locations. This is, to our knowledge, the first time that pest ecology, root damage and yield loss have been successfully interlinked to produce a virtual field. There are potential applications in investigating efficacy of different pest control measures and strategies.

中文翻译：

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玉米根节上害虫压力的预测：POPP-Corn模型。

玉米根虫Diabrotica的模型spp。结合在整个土壤剖面上发展玉米根系的暂时性模型，开发了将害虫生态，根系损害和产量损失联系起来的方法。该模型的开发侧重于根据实地观察来模拟根虫进食引起的根部损害，以便将来对管理干预措施的功效进行虚拟测试。我们介绍了该模型，并通过对观察到的和模拟的害虫发育与根部损害（根据节间伤害等级从0到3进行评估）之间的比较来模拟其根部损害的适用性，以供在伊利诺伊州Urbana进行的文献研究（美国） ，从1991年到2014年。该模型分别模拟了幼虫和成虫的首次出现到分别在88％和71％的所有年份中观察到的一周之内。并且在所有情况下都应在距伊利诺伊州中部首次发现的2周之内。此外，与2005年至2014年间的实地观察相比，在73％的年份中，模拟的根部损害与<0.5节点伤害量表分数相差不到0.5个节点伤害量级点，即使没有准确的初始害虫压力信息（即土壤中卵数）在站点上测量或从附近位置获得。据我们所知，这是害虫生态学，根系损害和产量损失首次成功地相互关联以产生虚拟田地。在研究不同害虫控制措施和策略的功效方面有潜在的应用。与2005年至2014年间的实地观察相比，有5个节点的伤害量表得分，尽管未在现场或附近地点无法获得有关初始有害生物压力（即土壤中卵数）的准确信息。据我们所知，这是害虫生态学，根系损害和产量损失首次成功地相互关联以产生虚拟田地。在研究不同害虫控制措施和策略的功效方面有潜在的应用。与2005年至2014年间的实地观察相比，该节点有5个节点伤害量表分数，尽管并未在现场或附近地点测量到初始有害生物压力的准确信息（即土壤中卵的数量）。据我们所知，这是害虫生态，根系损害和产量损失首次成功地相互关联以产生虚拟田地。在研究不同害虫控制措施和策略的功效方面有潜在的应用。根部损害和产量损失已成功互连以产生虚拟字段。在研究不同害虫控制措施和策略的功效方面有潜在的应用。根部损害和产量损失已成功互连以产生虚拟字段。在研究不同害虫控制措施和策略的功效方面有潜在的应用。