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Should I treat my pond weeds now, or will they die on their own now that it’s getting colder? | Ponds & Lakes Q&A

Q: Should I treat my pond weeds now, or will they die on their own now that it’s getting colder?

Q: Should I treat my pond weeds now, or will they die on their own now that it’s getting colder?

Ed – Norton, OH

A: This time of year, many aquatic plants—including weeds—seem to be no longer actively growing. Triggered by dropping temperatures and fewer hours of sunlight, the cold-weather slowdown sends perennial plants into dormancy, and it can be hard to tell if they’re dead or just holing up for the winter.

Because you’ll see little or no greenery, treating those weeds can be a challenge. Plus, most chemical treatments, like herbicides and algaecides, don’t work well in colder temperatures. Algae Defense®, for example, stops working when the water is below 60°F, and the beneficial bacteria in PondClear™ almost slow down completely when temps fall below 50°F.

So what options do you have for treating weeds when it gets cold?

  1. Rake Out Dead Vegetation: First, pull on your muck boots and gloves, and manually pull weeds and dead foliage from the water with a weed rake or other weed removal tool. This will take out growing plants and cut down on decaying organics, which means fewer weeds and fertilizer for them next spring.
  2. Dose with Pond Dye: Next, add some Pond Dye to the water. Available in convenient liquid quarts, gallons and water-soluble packets, it will shade the water blue or black and reduce the amount of sunlight that reaches the bottom of your lake. Pond Dye can also be used regardless of the temperature or time of year.
  3. Aerate the Water: Unless you plan to use your lake for winter recreation, make sure your Airmax® Aeration System is up and running. It’ll keep your water circulated, which will reduce the muck buildup throughout the winter, and it’ll keep a hole open in the ice, which will allow for gas exchange. Your fish will thank you for it.

If you’re concerned about weeds as fall and winter approach, give these three tricks a try. By removing existing weeds and reducing the decaying buildup (i.e. weed fertilizer) now, you’ll have less work to do next spring—and won’t that be a treat!

Pond Talk: What kinds of aquatic weeds grow year-round in your area?

Shade & Beautify Your Pond All Year - The Pond Guy® PondShade™ Pond Dye

 

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Do pond weeds stop growing during the winter months? | Ponds & Lakes Q&A

Q: Do pond weeds stop growing during the winter months?

Q: Do pond weeds stop growing during the winter months?

Allen – Marcola, OR

A: Unfortunately, it’s tough to give you a definitive answer. The growth pattern of aquatic weeds and algae really depend on where a particular pond or lake is located. Weed growth in a Florida pond, for instance, will be different from weed growth in a Minnesota pond!

In general, however, you can expect to see different pond weeds pop up at different times of year based on environmental temperature, just like the weeds in your lawn. If your pond or lake freezes over, the perennial weeds will typically die back in the winter and re-emerge in the spring. Some plants, however, will continue to grow throughout the cold season, though at a much slower rate than you’d see in the warmer summer months.

Trouble surfaces when water temperatures drop to the point where your algaecides and herbicides become ineffective – but the weeds continue to grow. Algae Defense®, for example, stops working when the water is below 60° Fahrenheit, and the beneficial bacteria in PondClear™ slow down to almost a stop when temps fall below 50°F.

So what can you do?

When the chemicals and bacteria are no longer working for the winter, it’s time to turn to Pond Logic® Pond Dye. An effective year-round treatment, Pond Dye shades the water and reduces the amount of sunlight reaching the weeds and algae growing at the bottom of your lake. Less sunlight means fewer weeds, regardless of the temperature or time of year.

Pond Logic® Pond Dye comes in two formulations: Easy-to-use packets and quarts of concentrated liquid. To use the packets, which come in Nature’s Blue™ and Black DyeMond™, simply toss several in water at various locations around your pond or lake. The packet will dissolve and the dye will disperse throughout the water. To use the concentrated liquid, which comes in Nature’s Blue™, Twilight Blue™ and Black DyeMond™, pour the dye in several spots along the pond’s edge. There’s no mixing required.

If wintertime weeds are taking over your pond, consider adding Pond Dye. Not only will it shade your water and hinder weed growth, but it will also add to the aesthetics of your landscape.

Pond Talk: Do you battle weed growth year-round where you live?

Shade and Protect Your Pond Year Round - Pond Logic® Pond Dye Packets