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Article

Evaluation of Slug Refuge Traps in a Soybean Reduced-Tillage Cover Crop System

1
Ohio Agricultural Research and Development Center, Department of Entomology, The Ohio State University, 1680 Madison Ave., Wooster, OH 44691, USA
2
Agricultural Technical Institute, The Ohio State University, 1328 Dover Rd, Wooster, OH 44691, USA
*
Author to whom correspondence should be addressed.
Insects 2021, 12(1), 62; https://doi.org/10.3390/insects12010062
Received: 17 November 2020 / Revised: 7 January 2021 / Accepted: 7 January 2021 / Published: 12 January 2021
(This article belongs to the Special Issue Biology and Management of Slug and Snail Pests)
Slugs have become more frequent pests of field crops, including soybean. Monitoring slugs during the day is difficult because slugs are nocturnal, so trapping is often used to monitor populations. A variety of traps have been developed, though there are few direct comparisons of the different trap types. The objective of this study was to compare trapping efficiency of two types of slug refuge traps in soybeans. We tested a traditional shingle trap and a modified shingle trap with a water-filled pitfall trap beneath it. The modified shingle traps captured significantly more slugs than the traditional shingle trap, mainly due to the pitfall component (which was significantly cooler than the shingle component). As slug density decreased, this trend was most pronounced, suggesting that the modified shingle trap is a more sensitive sampling tool which may be useful in agronomic slug research.
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. View Full-Text
Keywords: mollusks; monitoring; integrated pest management; field crops; no-till; shingle trap mollusks; monitoring; integrated pest management; field crops; no-till; shingle trap
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MDPI and ACS Style

Raudenbush, A.L.; Pekarcik, A.J.; Haden, V.R.; Tilmon, K.J. Evaluation of Slug Refuge Traps in a Soybean Reduced-Tillage Cover Crop System. Insects 2021, 12, 62. https://doi.org/10.3390/insects12010062

AMA Style

Raudenbush AL, Pekarcik AJ, Haden VR, Tilmon KJ. Evaluation of Slug Refuge Traps in a Soybean Reduced-Tillage Cover Crop System. Insects. 2021; 12(1):62. https://doi.org/10.3390/insects12010062

Chicago/Turabian Style

Raudenbush, Amy L., Adrian J. Pekarcik, Van R. Haden, and Kelley J. Tilmon. 2021. "Evaluation of Slug Refuge Traps in a Soybean Reduced-Tillage Cover Crop System" Insects 12, no. 1: 62. https://doi.org/10.3390/insects12010062

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