Assessment of the Biological Control Potential of Common Carabid Beetle Species for Autumn- and Winter-Active Pests (Gastropoda, Lepidoptera, Diptera: Tipulidae) in Annual Ryegrass in Western Oregon
While carabid beetles have been shown to feed on a variety of crop pests, little is known about their species assemblages in US annual ryegrass crops, where invertebrate pests, particularly slugs, lepidopteran larvae and craneflies, incur major financial costs. This study assesses the biological con...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Insects |
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| Online Access: | https://www.mdpi.com/2075-4450/11/11/722 |
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| author | Inga Reich Casi Jessie Seung-Joon Ahn Man-Yeon Choi Christopher Williams Mike Gormally Rory Mc Donnell |
| author_facet | Inga Reich Casi Jessie Seung-Joon Ahn Man-Yeon Choi Christopher Williams Mike Gormally Rory Mc Donnell |
| author_sort | Inga Reich |
| collection | DOAJ |
| description | While carabid beetles have been shown to feed on a variety of crop pests, little is known about their species assemblages in US annual ryegrass crops, where invertebrate pests, particularly slugs, lepidopteran larvae and craneflies, incur major financial costs. This study assesses the biological control potential of carabid beetles for autumn- and winter-active pests in annual ryegrass grown for seed by: (a) investigating the spatial and temporal overlap of carabids with key pests; and (b) molecular gut content analysis using qPCR. Introduced <i>Nebria brevicollis</i> was the only common carabid that was active during pest emergence in autumn, with 18.6% and 8.3% of <i>N. brevicollis</i> collected between September and October testing positive for lepidopteran and cranefly DNA, respectively, but only 1.7% testing positive for slug DNA. While pest DNA was also detected in the guts of the other common carabid species<i>—Agonum muelleri</i>, <i>Calosoma cancellatum</i> and <i>Poecilus laetulus</i>—these were active only during spring and summer, when crop damage by pests is less critical. None of the four carabid species was affected by disk tilling and only <i>N. brevicollis</i> was significantly associated with a vegetated field margin. However, as its impact on native ecosystems is unknown, we do not recommend managing for this species. |
| first_indexed | 2024-03-10T15:24:27Z |
| format | Article |
| id | doaj.art-41688812ccdc4b0188ad96a95e7f06f4 |
| institution | Directory Open Access Journal |
| issn | 2075-4450 |
| language | English |
| last_indexed | 2024-03-10T15:24:27Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Insects |
| spelling | doaj.art-41688812ccdc4b0188ad96a95e7f06f42023-11-20T18:07:45ZengMDPI AGInsects2075-44502020-10-01111172210.3390/insects11110722Assessment of the Biological Control Potential of Common Carabid Beetle Species for Autumn- and Winter-Active Pests (Gastropoda, Lepidoptera, Diptera: Tipulidae) in Annual Ryegrass in Western OregonInga Reich0Casi Jessie1Seung-Joon Ahn2Man-Yeon Choi3Christopher Williams4Mike Gormally5Rory Mc Donnell6Department of Crop and Soil Science, Oregon State University, Corvallis, OR 97331, USADepartment of Crop and Soil Science, Oregon State University, Corvallis, OR 97331, USAUSDA-ARS Horticultural Crops Research Lab, Corvallis, OR 97331, USAUSDA-ARS Horticultural Crops Research Lab, Corvallis, OR 97331, USASchool of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool L3 3AF, UKApplied Ecology Unit, National University of Galway, Galway H91 TK33, IrelandDepartment of Crop and Soil Science, Oregon State University, Corvallis, OR 97331, USAWhile carabid beetles have been shown to feed on a variety of crop pests, little is known about their species assemblages in US annual ryegrass crops, where invertebrate pests, particularly slugs, lepidopteran larvae and craneflies, incur major financial costs. This study assesses the biological control potential of carabid beetles for autumn- and winter-active pests in annual ryegrass grown for seed by: (a) investigating the spatial and temporal overlap of carabids with key pests; and (b) molecular gut content analysis using qPCR. Introduced <i>Nebria brevicollis</i> was the only common carabid that was active during pest emergence in autumn, with 18.6% and 8.3% of <i>N. brevicollis</i> collected between September and October testing positive for lepidopteran and cranefly DNA, respectively, but only 1.7% testing positive for slug DNA. While pest DNA was also detected in the guts of the other common carabid species<i>—Agonum muelleri</i>, <i>Calosoma cancellatum</i> and <i>Poecilus laetulus</i>—these were active only during spring and summer, when crop damage by pests is less critical. None of the four carabid species was affected by disk tilling and only <i>N. brevicollis</i> was significantly associated with a vegetated field margin. However, as its impact on native ecosystems is unknown, we do not recommend managing for this species.https://www.mdpi.com/2075-4450/11/11/722conservation biological controlslugsqPCRmolecular gut content analysis<i>Nebria brevicollis</i><i>Noctua pronuba</i> |
| spellingShingle | Inga Reich Casi Jessie Seung-Joon Ahn Man-Yeon Choi Christopher Williams Mike Gormally Rory Mc Donnell Assessment of the Biological Control Potential of Common Carabid Beetle Species for Autumn- and Winter-Active Pests (Gastropoda, Lepidoptera, Diptera: Tipulidae) in Annual Ryegrass in Western Oregon Insects conservation biological control slugs qPCR molecular gut content analysis <i>Nebria brevicollis</i> <i>Noctua pronuba</i> |
| title | Assessment of the Biological Control Potential of Common Carabid Beetle Species for Autumn- and Winter-Active Pests (Gastropoda, Lepidoptera, Diptera: Tipulidae) in Annual Ryegrass in Western Oregon |
| title_full | Assessment of the Biological Control Potential of Common Carabid Beetle Species for Autumn- and Winter-Active Pests (Gastropoda, Lepidoptera, Diptera: Tipulidae) in Annual Ryegrass in Western Oregon |
| title_fullStr | Assessment of the Biological Control Potential of Common Carabid Beetle Species for Autumn- and Winter-Active Pests (Gastropoda, Lepidoptera, Diptera: Tipulidae) in Annual Ryegrass in Western Oregon |
| title_full_unstemmed | Assessment of the Biological Control Potential of Common Carabid Beetle Species for Autumn- and Winter-Active Pests (Gastropoda, Lepidoptera, Diptera: Tipulidae) in Annual Ryegrass in Western Oregon |
| title_short | Assessment of the Biological Control Potential of Common Carabid Beetle Species for Autumn- and Winter-Active Pests (Gastropoda, Lepidoptera, Diptera: Tipulidae) in Annual Ryegrass in Western Oregon |
| title_sort | assessment of the biological control potential of common carabid beetle species for autumn and winter active pests gastropoda lepidoptera diptera tipulidae in annual ryegrass in western oregon |
| topic | conservation biological control slugs qPCR molecular gut content analysis <i>Nebria brevicollis</i> <i>Noctua pronuba</i> |
| url | https://www.mdpi.com/2075-4450/11/11/722 |
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