Effects of Turbidity on Fluridone Treatments for Curlyleaf Pondweed Control
Abstract
This study was a first step in documenting inorganic turbidity impacts on fluridone efficacy when controlling the invasive species curlyleaf pondweed. Turbidity in the water column did not substantially impact aqueous fluridone residues. Without turbidity, fluridone concentrations of 3 to 5 micrograms ai/L for a 56-day exposure period suppressed growth of curlyleaf pondweed by 42 to 72 percent, but only slightly reduced turion production. The addition of turbidity to the water column further reduced shoot biomass for curlyleaf pondweed in all treatments, including the references, by as much as 80 percent; however, turion numbers increased with increased turbidity. Plant maturity at the time of herbicide application probably influenced turion production in this study, as plants may have been already cued to form turions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2008
- Accession Number
- ADA479127
Entities
People
- Angela G. Poovey
- Michael D. Netherland
- Wendy Crowell
Organizations
- Engineer Research and Development Center