As more farmers adopt no- or reduced-tillage and/or cover crop land management practices, slugs have become more frequent pests of field crops, including soybean. Monitoring slugs visually is difficult because they are nocturnal, so several trapping methods have been developed, though comparisons of trap types are rare. The objective of this study was to compare trapping efficiency of two types of slug refuge traps in reduced-tillage soybeans following cover crop termination. We tested a traditional shingle trap and a modified shingle trap with a water-filled pitfall trap beneath it. Traps were deployed in 24 pairs in 2018 and 2019 in experimental soybean plots. We counted slug captures weekly over a 5-week time period each year. In 2018, we counted the total number of slugs under each trap type. In 2019, counts were categorized into specific trap components (shingle vs. in/on/under the pitfall). Temperature was also recorded in 2019. The modified shingle traps captured significantly more slugs than the traditional shingle traps, mainly due to the pitfall component. This trend was most pronounced as slug density decreased, suggesting that the modified shingle trap is a more sensitive sampling tool which may be particularly valuable when used for research purposes.

中文翻译：

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大豆减耕覆盖作物系统中的避难所陷阱评估

随着越来越多的农民采取免耕或减耕和/或覆盖耕地的管理方式，已经成为包括大豆在内的田间作物的害虫。从视觉上监测是困难的，因为它们是夜间活动的，因此尽管陷阱类型的比较很少，但已经开发了几种捕获方法。这项研究的目的是比较覆盖作物终止后在减耕大豆中两种类型的弹头避难所诱捕效率。我们测试了传统的带状板陷阱和改进的带状板陷阱，并在其下方装有注水陷阱。在2018年和2019年的实验性大豆田中，诱捕器被部署为24对。我们对每年5周内每周捕获的week进行计数。在2018年，我们计算了每种陷阱类型下的弹头总数。在2019年 计数归类为特定的陷阱组成（陷阱与陷井中/陷井中/陷井下）。还记录了2019年的温度。经过改进的带状板陷阱比传统的带状板陷阱捕获的要多得多，这主要是由于陷阱的影响。这种趋势在块状密度降低时最为明显，表明改进的带状板捕集器是一种更为敏感的采样工具，当用于研究目的时可能特别有价值。