Hostname: page-component-848d4c4894-x24gv Total loading time: 0 Render date: 2024-05-20T12:58:41.128Z Has data issue: false hasContentIssue false

Fluridone-Resistant Hydrilla (Hydrilla verticillata) Is Still Dominant in the Kissimmee Chain of Lakes, FL

Published online by Cambridge University Press:  20 January 2017

Michael D. Netherland*
Affiliation:
U.S. Army Engineer Research and Development Center, Center for Aquatic and Invasive Plants, Gainesville, FL 32653
Dean Jones
Affiliation:
University of Florida Center for Aquatic and Invasive Plants, Lake Alfred, FL 33850
*
Corresponding author's E-mail: mdnether@ufl.edu

Abstract

The invasive aquatic plant hydrilla rapidly spread through the 28,500 ha Kissimmee Chain of Lakes (KCOL) system in Florida in the late 1980s and early 1990s. Large-scale herbicide treatments with fluridone were initiated in 1993 and resulted in widespread reduction in hydrilla; however, by 2000, sustained use of fluridone resulted in dominance of fluridone-resistant strains of hydrilla throughout these lakes. The last large-scale fluridone applications on the KCOL were conducted in 2004, and in 2012, a sampling effort was initiated to determine the status of fluridone-resistant strains of hydrilla given an 8-yr period with no further selection pressure from fluridone. A total of 260 sites were sampled on the lakes during March, May, September, and December 2012. Plants were returned to the lab and exposed to fluridone at concentrations of 5, 10, and 20 μg L−1 and a pulse-amplitude-modulated (PAM) fluorometer was utilized to measure fluorescence yield of new shoot tissue growth following a 14-d exposure period. Results indicate that 80 to 90% of the sites sampled on the four lakes of the Kissimmee Chain remain resistant to fluridone. Three distinct patterns of response to fluridone were noted, suggesting that susceptible, moderately tolerant, and highly tolerant strains of hydrilla currently coexist on these lakes. Although fluridone-susceptible plants were present on the KCOL, this study clearly demonstrates that most of the hydrilla remained resistant despite an 8-yr period with no fluridone selection pressure.

Type
Research Article
Copyright
Copyright © Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

Arias, RS, Netherland, MD, Scheffler, BE, Puri, A, Dayan, FE (2005) Molecular evolution of herbicide resistance to PDS inhibitors in Hydrilla verticillata and potential use to generate herbicide resistant crops. Pest Manag Sci 61:258266 Google Scholar
Bartels, PG, Watson, CW (1978) Inhibition of carotenoid synthesis by fluridone and norflurazon. Weed Sci 26:198203 Google Scholar
Bergelson, J, Purrington, CB (1976) Surveying patterns in the cost of resistance in plants. Am Nat 148:536558 Google Scholar
Berger, S (2011) Characterization of a suspected herbicide tolerant watermilfoil (Myriophyllum spicatum × M. sibiricum). Masters thesis. Gainesville, FL University of Florida. 98 pGoogle Scholar
Berger, ST, Netherland, MD, MacDonald, GE (2012) Evaluating fluridone sensitivity of multiple hybrid and Eurasian watermilfoil accessions under mesocosm conditions. J Aquat Plant Manag 50:135141 Google Scholar
Berger, ST, Netherland, MD, MacDonald, GE (2015) Documentation of multiple herbicide tolerance in a hybrid watermilfoil population. Weed Sci 63:235241 Google Scholar
Dayan, FE, Netherland, MD (2005) Hydrilla, the perfect aquatic weed, becomes more noxious than ever. Outlooks Pest Manag 16:277282 Google Scholar
Dayan, FE, Owens, DK, Tranel, PJ, Preston, C, Duke, SO (2014) Evolution of resistance to phytoene desaturase and protoporphyrinogen oxidase inhibitors—state of knowledge. Pest Manag Sci 70:13581366 Google Scholar
[FDEP] Florida Department of Environmental Protection. (2007) Status of the Aquatic Plant Maintenance Program in Florida Public Waters: Annual Report for Fiscal Year 2006–2007. Department of Environmental Protection, Florida. Pages 67pGoogle Scholar
Fox, AM, Haller, WT, Shilling, DG (1994) Use of fluridone for hydrilla management in the Withlacoochee River, Florida. J Aquat Plant Manag 32:4755 Google Scholar
Fox, AM, Haller, WT, Shilling, DG (1996) Hydrilla control with split treatments of fluridone in Lake Harris, FL. Hydrobiologia 340:235239 Google Scholar
Haynes, D, Ralph, P, Prange, J, Dennison, B (2000) The impact of the herbicide diuron on photosynthesis in three species of tropical seagrass. Mar Pollut Bull 41:288293 Google Scholar
Hoyer, MV, Bachmann, RW, Canfield, DE (2008) Lake management (muck removal) and hurricane impacts to the trophic state of Lake Tohopekaliga, FL. Lake Reservoir Manag 24:5768 Google Scholar
Juneau, P, Dewez, D, Matsui, S, Kim, S, Popovic, R (2001) Evaluation of different algal species sensitivity to mercury and metolachlor by PAM-fluorometry. Chemosphere 45:589598 Google Scholar
Langeland, KA (1996) Hydrilla verticillata (L.F.) Royle (Hydrocharitaceae), “The Perfect Aquatic Weed”. Castanea 61:293304 Google Scholar
Michel, A, Scheffler, BE, Arias, RS, Duke, SO, Netherland, MD, Dayan, FE (2004) Somatic mutation-mediated evolution of herbicide resistance in the invasive plant hydrilla. Mol Ecol 13:32293237 Google Scholar
Netherland, MD (1997) Turion ecology of hydrilla. J Aquat Plant Manag 35:110 Google Scholar
Netherland, MD, Getsinger, KD (1995) Laboratory evaluation of threshold fluridone concentrations for controlling hydrilla and Eurasian watermilfoil. J Aquat Plant Manag 33:3336 Google Scholar
Netherland, MD, Getsinger, KD, Skogerboe, JG (1997) Mesocosm evaluation of the species selective potential of fluridone. J Aquat Plant Manag 35:4150 Google Scholar
Netherland, MD, Getsinger, KD, Turner, EG (1993) Fluridone concentration and exposure time requirements for control of Eurasian watermilfoil and hydrilla. J Aquat Plant Manag 31:189194 Google Scholar
Netherland, MD, Haller, WT (2006) Impact of management on the sprouting of dioecious hydrilla tubers. J Aquat Plant Manag 44:3237 Google Scholar
Netherland, MD, Hoyer, MV, Allen, MS, Canfield, DE (2005) A summary of future management recommendations from the hydrilla summit in Florida. Aquatics 27:49 Google Scholar
Netherland, MD, Jones, KD (2012) Registered herbicides and improving their efficacy on aquatic weeds. Aquatics 34:1216 Google Scholar
Puri, A, MacDonald, GE, Altpeter, F, Haller, WT (2007) Mutations in phytoene desaturase gene associated with fluridone resistance in different hydrilla (Hydrilla verticillata) biotypes. Weed Sci 55:412420 Google Scholar
Puri, A, MacDonald, GE, Haller, WT, Singh, M (2006) Phytoene and β-carotene response of fluridone-susceptible and resistant hydrilla (Hydrilla verticillata) biotypes to fluridone. Weed Sci 54:995999 Google Scholar
Sibouny, M, Rubin, B (2003) The ecological fitness of ALS-resistant Amaranthus retroflexus and multiple-resistant Amaranthus blitoides . Weed Res 43:4047 Google Scholar
Vila-Aiub, MM, Neve, P, Steadman, K, Powles, SB (2005) Ecological fitness of a multiple herbicide-resistant Lolium rigidum population: dynamics of seed germination and seedling emergence of resistant and susceptible phenotypes. J Appl Ecol 42:288298 Google Scholar