Plant ID
Need help identifying an invasive plant? Upload a photo below and we'll ID the species for you. Or browse photos to find a match.
Lakes and Reservoirs
Subscribe to our newsletter
Measure Lake or Pond
Easily measure your lake or pond using your mobile device or laptop with our handy tool.
Start MeasuringProduct
Hydrothol Granular provides control of both weeds and algae. Used primarily as an algicide at rates of 0.05-0.3 ppm, it provides excellent control of a broad spectrum of algae including planktonic, filamentous, and branched algae. It works relatively quickly providing algae control in a few days. There are no restrictions on treated water used for swimming, fishing or irrigation*.
*Read and follow label directions.
Go to CDMS to View Full Label Go to CDMS to View Full Safety Data SheetHydrothol® Granular Facts:
- Minimal water use restrictions*
- Controls both weeds and algae
- Works quickly
Active Ingredients
11.2% Mono(N,N-dimethylalkylamine) salt of endothall*
88.8% Other Ingredients
100% Total
*7-oxabicyclo [2.2.1] heptane-2,3-dicarboxylic acid equivalent 5%
How to Use
Ponds and Small Lakes with Little to No Outflow
Always read the label and follow the label directions.12/5/2017
Quiescent, Slow Moving, or Flowing Water Treatments
Always read the label and follow the label directions.12/5/2017
