Early Season Algae
Algae can grow at different times on any lake or pond depending on a variety of conditions. Nutrient levels, water depth, clarity, and temperatures will be some of the main factors that determine when algae appears and how much growth you experience. From late March through May you will probably see some algae growth and most likely that algae will be spirogyra.
Spirogyra algae grows fast and enjoys chilly waters. This early season algae is easily identified by its super slimy texture and it appears stringy. The good news for anyone attempting to manage this nuisance is that it is very susceptible to copper algaecides. It doesn’t take much to make this one turn brown and degrade away. Since water temperatures will most likely be colder, I typically recommend a liquid chelated copper since they tend to do better in cooler water. Oxygen depletion is less a risk as well since cooler water holds oxygen better than warmer water. However, in some cases oxygen levels in the water can still be a concern.
Treat Spirogyra While Waters Are Cool
If you start getting this super slimy nuisance vegetation, it is best to take care of it early while weeds are below the surface and water temperatures are below the mid 70s. Once we hit June, you are likely to have other weeds and algae species to deal with along with warmer water temperatures to juggle. Getting an early start can mean the difference between having a manageable body of water versus an unmanageable body of water.