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Best Practices for Enhancing Biological Control of Giant Salvinia in Louisiana
The proper technique for releasing Salvinia weevils
LSU AgCenter assistant entomology professor Rodrigo Diaz explains the difference between two common invasive aquatic weeds, giant and common salvinia. This video is part of the LSU AgCenter Tip Tuesday video series!
Giant Salvinia is a major problem in Louisiana's waterways. A Brazilian invasive species, it requires the work of state, higher ed, and public landowners to control.
LSU AgCenter adjunct professor Christopher Mudge discusses identification and control methods for giant and common salvinia.
LSU AgCenter adjunct professor Christopher Mudge discusses winter aquatic weed management. This video is part of the LSU AgCenter Tip Tuesday video series.
The following PDF titled "Maximizing Salvinia Weevil Impact" provides a step-by-step guide on how to effectively use salvinia weevils for controlling giant salvinia infestations. It includes instructions on releasing weevils, monitoring their activity, moving infested salvinia, and repeating these steps throughout the growing season. The infographic also highlights signs of feeding damage.
Korey Pham, Christopher Mudge, Hannah Laville, and Rodrigo Diaz. Management Options and Outreach for Louisiana's Giant Problem: Giant Salvinia PDF
Korey Pham, Hannah Laville, and Rodrio Diaz. What we do at LSU: Weevil Rock You PDF
Wahl, C., Diaz, R. and J. Ortiz. 2020. Assessing Salvinia molesta impact on environmental conditions in an urban lake: case study of Lago Las Curias, Puerto Rico. Aquatic Invasions 15(4): 562–577. https://www.reabic.net/aquaticinvasions/2020/accepted.aspx
Wahl, C. F. and R. Diaz. 2020. Winter and spring conditions determine the production of the salvinia weevil mass rearing programme. Biocontrol Science and Technology 30(6): 569-580. https://doi.org/10.1080/09583157.2020.1747599
Wahl, C.* and R. Diaz. 2019.Observation of red swamp crayfish (Procambarus clarkia) feeding upon giant salvinia (Salvinia molesta). Southeastern Naturalist. 18(4): N41-N44. https://bioone.org/journals/southeastern-naturalist/volume-18/issue-4/058.018.0408/Observation-of-Red-Swamp-Crayfish-Procambarus-clarkii-Feeding-Upon-Giant/10.1656/058.018.0408.full
Wahl, C. *, Mudge, C. and R. Diaz. 2018. Does the aquatic herbicide 2,4-D and a non-ionic surfactant impact survival of salvinia weevil? Journal of Aquatic Plant Management 56: 113-119. http://www.apms.org/wp/wp-content/uploads/japm-56-02-113-full.pdf
Russell, A., S. Johnson, X. Cibils, F. McKay, L. Moshman, P. Madeira, Z. Blair, and R. Diaz. 2017. Surveys in Uruguay and Argentina reveal Cyrtobagous salviniae (Coleoptera: Curculionidae) populations adapted to survive temperate climates in southeastern USA. Biological Control 107: 41-49. https://ac.els-cdn.com/S1049964417300105/1-s2.0-S1049964417300105-main.pdf?_tid=4816806a-af5a-11e7-babf-00000aab0f02&acdnat=1507818975_4ab4cd94c9b9441edc2dfc5597b10838
Micinski, S., B. J. Fitzpatrick, M. L. Ferro, S. J. Johnson, B. Johnson, and S. Williams.
2016. Flying activity of Cyrtobagous salviniae Calder and Sands in Louisiana. Southwest. Entomol. 41: 313-320. http://eds.a.ebscohost.com/eds/pdfviewer/pdfviewer?vid=0&sid=f119e424-769c-4c0d-b7da-cdadb33cedf9%40sessionmgr4008
Galam, D., J. Silva, D. Sanders, and J. H. Oard. 2015. Morphological and genetic survey of giant salvinia populations in Louisiana and Texas. Aquat. Bot. 127: 20-25. https://ac.els-cdn.com/S0304377015300103/1-s2.0-S0304377015300103-main.pdf?_tid=88d49704-af5a-11e7-813a-00000aab0f6c&acdnat=1507819084_c25ce265466a21cddf53057a0601782d
Obeysekara, P. T., A. Knutson, A. Mukherjee, and K. M. Heinz. 2015. Repeated cold exposure effects on mortality and feeding activity of the salvinia weevil, Cyrtobagous salviniae (Coleoptera: Curculionidae). Environ. Entomol. 44: 1590-1598. https://watermark.silverchair.com/nvv123.pdf
Allen, J. L, S. Clusella-Trullas, and S. L. Chown. 2014. Thermal tolerance of Cyrtobagous salviniae: a biocontrol agent in a changing world. BioControl 59: 357-366. https://link.springer.com/content/pdf/10.1007%2Fs10526-014-9570-2.pdf
Grodowitz, M. J., S. Johnson, and A. N. Schad. 2014. Efficiency of sampling to determine population size of Cyrtobagous salviniae (Coleoptera: Curculionidae). Fla. Entomol. 97: 1213-1225. http://www.bioone.org/doi/pdf/10.1653/024.097.0329
Mukherjee, A., A. Knutson, D. A. Hahn, and K. M. Heinz. 2014. Biological control of giant salvinia (Salvinia molesta) in a temperate region: cold tolerance and low temperature oviposition of Cyrtobagous salviniae. BioControl 59: 781-790. https://link.springer.com/content/pdf/10.1007%2Fs10526-014-9617-4.pdf
Mudge, C. R., N. E. Harms, and J. G. Nachtrieb. 2013. Interactions of herbicides, surfactants, and the giant salvinia weevil (Cyrtobagous salviniae) for control of giant salvinia (Salvinia molesta). J. Aquat. Plant Manage. 51: 77-83. http://www.apms.org/japm/vol51/japm-51-02-077-083.pdf
Nachtrieb, J. G. 2013. Mass-rearing Cyrtobagous salviniae for biological control of giant salvinia: field release implications. J. Aquat. Plant Manage. 51: 122-126. http://www.apms.org/wp/wp-content/uploads/japm-52-01-22.pdf
Parys, K. A., and S. J. Johnson. 2013. Biological control of common salvinia (Salvinia
minima) in Louisiana using Cyrtobagous salviniae (Coleoptera: Curculionidae). Fla. Entomol. 96: 10-18. http://www.bioone.org/doi/pdf/10.1653/024.096.0102
Tipping, P. W., M. R. Martin, W. J. Hulslander, Jr., P. T. Madeira, R. M. Pierce, M. D. Smart, and T. D. Center. 2013. Release and evaluation of Cyrtobagous salviniae on common salvinia in southern Louisiana. J. Aquat. Plant Manage. 51: 34-38. http://www.apms.org/wp/wp-content/uploads/2015/01/japm-51-01-34.pdf
