Feeding and Oviposition Behavior of<i>Rhinoncomimus latipes</i>Korotyaev (Coleoptera: Curculionidae) and Its Predicted Effectiveness as a Biological Control Agent for<i>Polygonum perfoliatum</i>L. (Polygonales: Polygonaceae)

BACKGROUND: Rhinoncomimus latipes (Coleoptera: Curculionidae) is a major biological control agent against the invasive plant Persicaria perfoliata. Release of R. latipes is challenging with the current visit-and-hand release approach because P. perfoliata shows a high degree of patchiness in the landscape, possesses recurved barbs on its stems, and often spreads into hard-to-access areas. This 3-year study developed and evaluated unmanned aerial systems (UAS) for precise aerial release of R. latipes to control P. perfoliata. RESULTS:We have developed two UAS (i.e. quad-rotor and tri-rotor) and an aerial release system to disseminate R. latipes. These include pods containing R. latipes and a dispenser to accommodate eight pods. Results of field tests to evaluate the systems showed no significant (P > 0.05) effects on survivorship and feeding ability of R. latipes after aerial release. CONCLUSION: Our study demonstrates the potential of UAS for precision aerial release of biological control agents to control invasive plants. The aerial deployment systems we have developed, including both pods and a dispenser, are low cost, logistically practical, and effective with no negative effects on aerially released R. latipes.

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Aerial release of Rhinoncomimus latipes (Coleoptera: Curculionidae) to control Persicaria perfoliata (Polygonaceae) using an unmanned aerial system

Park

Gururajan

Thistle

et al. 2017

Pest Management Science

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Status of an ongoing biological control program for the invasive vine, Persicaria perfoliata in eastern North America

2011

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Mile-a-minute weed, Persicaria perfoliata (L.) H. Gross (Polygonaceae), an aggressive annual vine native to Asia, has invaded forest edges, light gaps, open fields, and riparian borders in eastern North America. It was accidentally introduced into Pennsylvania in the 1930s and has since expanded its range north to Massachusetts, south to North Carolina, and west to Ohio. A biological control program was initiated in 1996, and in 2004, a permit was issued for release of Rhinoncomimus latipes Korotyaev (Coleoptera: Curculionidae), a host-specific weevil initially collected in China. Since 2004, the biology of the weevil in its introduced range has been studied, along with its impact on P. perfoliata, which can be substantial. Weevils have been released in ten states through 2010, and populations have increased considerably at many sites. Although P. perfoliata continues to expand its North American range, natural and human-assisted dispersal of R. latipes is reducing its negative effects. Here we review and assess the current status of the biological control program.

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Multi-generational effects of simulated herbivory and habitat types on the invasive weed Alternanthera philoxeroides: implications for biological control

et al. 2021

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Feeding and Oviposition Behavior ofRhinoncomimus latipesKorotyaev (Coleoptera: Curculionidae) and Its Predicted Effectiveness as a Biological Control Agent forPolygonum perfoliatumL. (Polygonales: Polygonaceae)

Cited by 23 publications

References 19 publications

Aerial release of Rhinoncomimus latipes (Coleoptera: Curculionidae) to control Persicaria perfoliata (Polygonaceae) using an unmanned aerial system

Aerial release of Rhinoncomimus latipes (Coleoptera: Curculionidae) to control Persicaria perfoliata (Polygonaceae) using an unmanned aerial system

Status of an ongoing biological control program for the invasive vine, Persicaria perfoliata in eastern North America

Multi-generational effects of simulated herbivory and habitat types on the invasive weed Alternanthera philoxeroides: implications for biological control

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