Resources

Tip Tuesday: Aquatic Weed Management During Winter

LSU AgCenter adjunct professor Christopher Mudge discusses winter aquatic weed management. This video is part of the LSU AgCenter Tip Tuesday video series.

Tip Tuesday - Giant vs Common Salvinia


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 in Louisiana


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.

Giant and Common Salvinia Control

LSU AgCenter adjunct professor Christopher Mudge discusses identification and control methods for giant and common salvinia.

The Proper Technique for Releasing Salvinia Weevils

The proper technique for releasing Salvinia weevils

How to identify giant versus common salvinia

How to identify giant versus common salviniajpg









How to identify giant versus common salviniapdf

Recent Publications

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

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