Landscape-scale drivers of insect pest regulation in sugar beet

IF 6.4 1区农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY

Agriculture, Ecosystems & Environment Pub Date : 2025-10-07 DOI:10.1016/j.agee.2025.109999

Fabian A. Boetzl , Nika Jachowicz , Anne Lisbet Hansen , Ola Lundin

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Abstract

Recent policy shifts sparked by environmental and health concerns, insecticide resistance development, and limited new registrations have caused a dwindling availability of chemical insecticides. Sugar beet, a major cash crop in temperate agricultural systems, relied on now banned neonicotinoid insecticide seed coatings for pest control, creating a need for sustainable alternatives. Using a monitoring dataset from 134 sugar beet fields in Denmark and Sweden collected over five years, we assessed landscape-scale drivers of the occurrence and damage of five dominant sugar beet pests in the region: black bean aphid, flea beetles, beet leafminers, pygmy mangold beetle and thrips. We found that insect pests generally cause limited damage to sugar beet in our study area, with damage thresholds for any of the five pests being exceeded in 20 % of the fields. Damage by thrips was more common in Denmark and damage by flea beetles and beet leafminer eggs were more common in Sweden. Pest occurrence or damage could only partly be explained by landscape-scale factors. Cropland cover was positively related to black bean aphid and thrips damage presence but negatively related to flea beetle and pygmy mangold beetle damage. Edge density was negatively related to black bean aphid occurrence but positively related to flea beetle damage. An inter-annual increase in host crop cover was positively related to flea beetle damage and crop diversity to beet leafminer infestation. We conclude that further research on the cause and countermeasures for insect pest outbreaks is needed to develop economically and environmentally sustainable insect pest regulation in sugar beet.

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甜菜病虫害调控的景观尺度驱动因素

最近由于环境和健康问题、杀虫剂抗药性的发展以及有限的新登记而引发的政策转变导致化学杀虫剂的可得性不断减少。甜菜是温带农业系统的一种主要经济作物，它依靠现已被禁止的新烟碱类杀虫剂种子包衣来控制害虫，因此需要可持续的替代品。利用丹麦和瑞典134块甜菜田5年来的监测数据，我们评估了该地区5种主要甜菜害虫（黑豆蚜虫、跳蚤甲虫、甜菜采叶虫、侏儒金甲虫和蓟马）发生和损害的景观尺度驱动因素。我们发现，在我们研究区域，害虫对甜菜的危害一般有限，20% %的田地超过了五种害虫的危害阈值。蓟马造成的损害在丹麦更为常见，跳蚤甲虫和甜菜叶蝉卵造成的损害在瑞典更为常见。有害生物的发生或损害只能部分地用景观尺度因子来解释。耕地覆被与黑豆蚜和蓟马的危害呈正相关，与蚤甲虫和矮金甲的危害呈负相关。边缘密度与黑豆蚜的发生呈负相关，与蚤甲虫的危害呈正相关。寄主作物覆盖度的年际增加与虱害和作物多样性对甜菜叶螨的影响呈正相关。因此，需要进一步研究甜菜病虫害发生的原因和防治措施，以制定经济和环境可持续的甜菜病虫害防治措施。

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来源期刊

Agriculture, Ecosystems & Environment 环境科学-环境科学

CiteScore

11.70

自引率

9.10%

发文量

392

审稿时长

26 days

期刊介绍： Agriculture, Ecosystems and Environment publishes scientific articles dealing with the interface between agroecosystems and the natural environment, specifically how agriculture influences the environment and how changes in that environment impact agroecosystems. Preference is given to papers from experimental and observational research at the field, system or landscape level, from studies that enhance our understanding of processes using data-based biophysical modelling, and papers that bridge scientific disciplines and integrate knowledge. All papers should be placed in an international or wide comparative context.