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Aquatic Herbicide Testing, Toxicity, and EPA Registration

... .37 mg/L 230 mg/kg 245 mg/L 1-7 days photolysis , microbial , adsorption Endothall 5 ... mg/L >10,000 mg/kg 14.3 mg/L 20-82 days photolysis , microbial Glyphosate 0.5 mg/L not applied to ...

Potassium Endothall Considerations

... Adsorption Does not adsorb onto soils Photolysis Not broken down via photolysis Dissipation Highly soluble so disperses in ...

Imazamox Considerations

... of 14 days in Florida Microbial N/A Photolysis Broken down by sunlight – primary pathway ...

Bispyribac Considerations

... Does not bind or adsorb to soil particles Photolysis Not sensitive to photolysis Hydrolysis Not sensitive to hydrolysis ...

Details About the Aquatic Herbicides Used in Florida

... (degradation from the action of microbes) and photolysis (breakdown from the absorbtion of energy from sunlight). ... very slowly. Imazamox is broken down in the water by photolysis and microbial degradation. Its half-life in ...

Fluridone Considerations

... down microbial ly – lesser pathway Photolysis Broken down by sunlight – primary pathway ... early spring applications. Herbicide photolysis is reduced during the winter due to shorter days and can lead to ...

Penoxsulam Considerations

... Microbial Minor breakdown pathway Photolysis Broken down primarily by sunlight Dissipation ...

Flumioxazin Considerations

... bind in sediments or adsorb to soil particles Photolysis Susceptible to photodegradation with a half life of ...

Amine Endothall Considerations

... Photodegradation Does not degrade by photolysis Dissipation Break down fairly rapidly in ... issues related to this tool – not broken down by photolysis Water temperature Endothall degradation can occur ...

Herbicide Considerations Reference Guide—Introduction

... applications. Microbial / Photolysis : Most herbicide s are broken down by microbes (bacteria) or photolysis (sunlight); and in some cases, by both. Herbicide s that are broken down by photolysis generally last longer in the water during winter months when the ...