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Aquatic Herbicide Testing, Toxicity, and EPA Registration

... in soft water 7.3 mg/L in hard water 2-8 days adsorption , precipitation Diquat .37 mg/L 230 mg/kg ... 1-7 days photolysis , microbial , adsorption Endothall 5 mg/L 182 mg/kg (as potassium salt) 233 ...

Potassium Endothall Considerations

... degradation rate is water-temperature dependant Adsorption Does not adsorb onto soils Photolysis Not ...

Fluridone Considerations

... life longer in clay or organic sediments Adsorption Mildly binds to clay and organic particles Microbial ...

Bispyribac Considerations

... metabolism is  primary degradation pathway Adsorption Does not bind or adsorb to soil particles ...

Flumioxazin Considerations

... degradation pathway in soil - half life ~45 days Adsorption Does not bind in sediments or adsorb to soil particles ...

Amine Endothall Considerations

... metabolism is  primary degradation pathway Adsorption Does not adsorb to suspended solids or sediments ...

Copper Considerations

... it binds to particulates in water and sediments Adsorption Adsorbs to organic materials and clay particles Degree of adsorption depends on acidity and alkalinity Dissipation ...

Diquat Considerations

... Less than 48 hours half life in water reported Adsorption Binds tightly to clay: do not use in muddy or turbid ...

Herbicide Considerations Reference Guide—Introduction

... as a feasible control option on these waters. Adsorption : Some herbicide s have a strong positive electrical ... by the herbicide -application equipment. Adsorption is also an important consideration for floating or emergent ...

Glyphosate Considerations

... Half  life in ponds reported from 12-60 days Adsorption Highly adsorbed on most soils, especially soils with high ...