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When should I stop treating algae? | Ponds & Lakes Q&A

Q: When should I stop treating algae?

Q: When should I stop treating algae?

Rich – Bartlesville, OK

A: It’s not so much a matter of when as it is what temperature your water is.

In theory, with the right equipment, algae can be managed all year-long. But if you want to treat it with chemicals, the water temperature in your lake needs to above 60 degrees Fahrenheit. The active ingredients in Pond Logic® Algae Defense® that are used to control suspended, floating and bottom-of-the-pond algae require warmer water temperatures to work properly.

So when your water temperature is below 60°F, you’re out of luck for using chemical treatments.

Before cooler temperatures chill your water this fall, give any planktonic algae, filamentous algae or chara growing in your pond a dose of Algae Defense®. The best time to apply the fast-acting formula is in the morning on a calm, sunny day. Simply mix with water and spray directly onto algae with a pressurized sprayer. Once the green stuff is dead, don’t forget to remove it with the Pond & Beach Rake to prevent an accumulation of dead algae and muck.

So what do you do if you’re hosting a Halloween party but the water temperature in your pond—filled with spooky, pea green masses—is lower than 60°F? Try clearing things up with The Pond Guy® PondSkim™. Measuring 5 feet wide and constructed with a super tough screen, the skimmer floats on the water surface and collects floating algae as you pull it along with your boat. Problem solved!

Pond Talk: How do you manage late-season algae blooms in your pond or lake?

Quickly Kill Late Season Algae - Pond Logic(r) Algae Defense(r)

I don’t know if I have chara or another weed. How do I tell? | Ponds & Lakes Q&A

Q: I don’t know if I have chara or another weed. How do I tell?

Q: I don’t know if I have chara or another weed. How do I tell?

Dan – W Jefferson, OH

A: Though it resembles a pond weed, chara—also called muskgrass or skunkweed—is actually a type of bottom-growing algae that can efficiently take over your pond or lake.

Can’t tell the difference between the two? Here are some tips to help identify and treat the chara.

IDing Chara

Pull out some of the plant in question and take a close look at it. Does it have these characteristics?

  • No Roots: Unlike pond weeds with traditional leaves and well-established root systems, chara is a gray-green branched multicellular algae that lacks flowers, true leaves and roots. Instead, it has six to 16 leaf-like branchlets that grow in spirals around the stem.
  • Distinct Odor: Next, smell it. Does it have a skunky, musty, garlicky-type smell? If so, it’s probably chara. Simply walking close to or around your pond will tell you right away if you have a chara problem, particularly late in the pond season.
  • Crunchy Texture: When you rub the plant between your fingers, what does it feel like? Chara has a crunchy or gritty-type texture that’s different than pond weeds.
  • Quickly Disintegrates: Finally, when you leave it on the dock, what happens to it after a few hours? If it almost disintegrates after a few hours, you’ve got chara.

Treating Chara

Once you determine it’s chara and not a pond weed, you’ll need to treat it with an algaecide rather than an herbicide. We prefer to use Pond Logic® Algae Defense® Algaecide, a fast-acting liquid formula, but use Cutrine®-Plus Granular as for chara growing in water deeper than 3 feet.

About two weeks after treating the chara, we suggest to use a Pond Rake to rake out as much as you can Doing this will help you gain control relatively quickly. (Important tip: Do not rake out chara before treating it because it will spread).

Pond Talk: What kinds of problems do you have with pond weeds or algae?

Eliminate Bottom Growing Chara - Cutrine®-Plus Granular

How do I know if my pond is covered in pollen or algae? | Ponds & Lakes Q&A

Q: How do I know if my pond is covered in pollen or algae?

Q: How do I know if my pond is covered in pollen or algae?

John – Noblesville, IN

A: Get on your sleuthing hat. Now that summer has arrived, the warm days can trigger both algae blooms and pollen bursts from flowering plants—both of which obscure the clean, sparkling water in your pond or lake. In order to clear things up, you need to first figure out whether it’s algae or pollen. Here are two clues to follow …

TEXTURE

Run your hand over the water surface and see what happens. Does the discoloration break apart at the surface or does it go deeper?

Algae that forms in ponds comes in two types—planktonic and filamentous. Planktonic algae is suspended in the water column, giving the water a pea-soup like appearance. Filamentous algae looks like long threads that grow from the bottom up and intertwine to form mats, commonly referred to as pond scum. When you run your fingers through the water, neither type of algae breaks apart.

Pollen, however, will break apart when agitated. It simply settles on the pond’s surface, giving it an oil slick-like appearance, and does not sink into the water column unless a heavy rain comes through.

COLOR

Next, take a close look at the color of what’s floating on your pond. Pollen, planktonic algae and filamentous algae can give a lake’s surface an off-colored hue.

The planktonic algae, which are microscopic plants, and the filamentous algae strings and mats color the water different shades of green, blue-green, brown or variations in between.

The pollen, however, often tints the water lighter green, yellow or white depending on what plants are releasing pollen spores into the air. Your deducing process can become complicated, however, if you have a combination of pollen sitting on top of a layer of algae!

IT’S ELEMENTARY!

Whether you’ve decided it’s algae or pollen, we have a solution for you: aeration.

A subsurface Airmax® Aeration System keeps pond and lake water circulating, which prevents the algae from forming and the pollen from coalescing into an unsightly slick. It also pumps oxygen into the water, which keeps your plants and fish happy and healthy.

Above the water, a Kasco Decorative Fountain will keep pollen at bay by spraying wet stuff up and over the pond’s surface, causing ripples that prevent the slicks from forming. Plus, they add movement and drama to your pond.

Pond Talk: How do you break up the pollen that forms on your pond or lake?

Add Movement & Drama To Your Pond - Kasco Decorative Fountain

How do I know which chemicals will treat my weeds? | Ponds & Lakes Q&A

Q: How do I know which chemicals will treat my weeds?

Q: How do I know which chemicals will treat my weeds?

Henry – Markesan, WI

A: Weeds. Whether they’re algae or submerged, floating or shoreline plants, they’re a nuisance—not to mention a potential hazard to your game fish and pond or lake health. In order to manage these green invaders, you should get to know them a little better. Don’t worry: you don’t need to be a Master Gardener to identify and treat them. Here’s all you need to know:

1. Know the Weeds

Before you start dumping chemicals on the weeds in your pond, you’ll first need to understand the different types of aquatic weeds that pop up in lakes or ponds. There are four basic categories:

  • Algae. Algae comes in three basic types: Planktonic, which causes the pea soup look in your water; filamentous, which creates blankets of stringy stuff or pond scum; and chara or muskgrass, which smells like musky garlic. When you take a closer look, these weeds have no defined root systems, unlike their other weed cousins.
  • Submerged. Submerged weeds live underwater. This group of troublemakers includes bladderwort, several types of pondweed, watermilfoil, parrot feather and hydrilla. They look like a typical plant, with leaves, stems and root systems.
  • Floating. Floating weeds generally reside in shallow water and have root systems that reach into the water or down into the soil, allowing their leaves and flowers to rise to the surface. They include watermeal, duckweed, azolla and even water lilies. When not kept in check, these floaters can take over a pond in no time.
  • Emergent. Emergent weeds live along your lake’s shoreline. These plants like to keep their feet wet; their foliage, leaves and flowers live out of water, but their root systems prefer wet, almost completely saturated soil. Emergent weeds include cattails, phragmites, purple loosestrife and bulrush.

2. ID the Weed

Once you identify the category of weed you’re dealing with, head over to our Weed Control Guide and try to match weed with the picture. For example, is it a floating plant with a root system? Then you’re dealing with a type of floating weed. Is it completely submerged? Then you’re dealing with a type of submerged weed.

Each weed included in our Weed Control Guide will describe the best treatment options to manage it. Not sure of the weed? Snap a close-up photo and e-mail it to us at weedid@thepondguy.com. Of course, you can always call us toll-free for advice, too, at 866-POND-HELP (766-3435)!

3. Treat the Weed

Once you’ve ID’d the weed, treat it with its appropriate herbicide, remembering to always follow label instructions when applying it to your pond or lake. If you have fish in your pond, we suggest treating in sections as sudden changes in water conditions can affect aquatic species. Treat 1/4 – 1/2 of pond at a time, while waiting 10-14 days between treatments.

4. Remove the Remains

Once the chemicals start working to kill the weeds, make sure you remove the decomposing foliage with a weed rake, like the Jenlis Weed Razer™ Aquatic Weed Cutter. Why? Because anything dead will turn into muck and start the weed/algae cycle again—which is not something you want to happen, right?

Pond Talk: What tips do you have for managing aquatic weeds?

Broad Spectrum Pondweed Control - Pond Logic® Ultra PondWeed Defense®

After a really warm day, I have algae floating on my pond. How do I control it? | Ponds & Lakes Q&A

Q: After a really warm day, I have algae floating on my pond. How do I control it?

Q: After a really warm day, I have algae floating on my pond. How do I control it?

Steve – Grand Rapids, MI

A: Plants in your vegetable garden love the warm sunshine—and so do the plants in your pond or lake, including algae. Warm temperatures and bright sunshine trigger green growth, so it’s critical to keep floating and submerged algae under control before it grows out of control.

Here’s what we recommend:

1. Treat the Growth

First, use an algaecide to kill the green stuff. You can treat floating algae with a fast-acting liquid spray like Pond Logic® Algae Defense® Algaecide with Treatment Booster™ PLUS, which treats algae floating around the perimeter of your pond. Simply spray it on with a pressurized sprayer to combat floating and bottom-growing algae.

Submerged algae can be treated with sinking granular products, such as Cutrine®-Plus Granular Algaecide. It works well for algae submerged deep in your pond or lake, such as Chara. It’s best distributed on a calm day via a granular spreader in the morning before mats form.

2. Remove the Dead Algae

Once the algae is dead, you should remove it. Why? Because that decomposing foliage turns into pond muck, which feeds future algae blooms throughout the season. Use a pond skimmer, like The Pond Guy® PondSkim™ Debris Skimmer, or a lake rake, like The Pond Guy® Pond & Beach Rake, to prevent that muck from accumulating.

3. Add Beneficial Bacteria

Three days after you’ve used algaecides, treat your pond with PondClear™. It contains beneficial bacteria that gobbles through the organic material that’s suspended in the water column. The result is a lake filled with clean, clear, odor-free water—and a healthy ecosystem for your game fish and other pond inhabitants.

4. Shade Water with Pond Dye

Finally, be sure to add blue or black pond dye, like Pond Logic® Pond Dye, to your lake throughout the spring and summer. By reducing the amount of sunlight that shines through the water and stimulates green growth, you will ultimately reduce the amount of algae.

Pond Talk: What lakeside recreational activities do you have planned this summer?

Eliminate Algae Quickly - Pond Logic® Algae Defense® & Treatment Booster™ PLUS

I hear about being proactive, but what are PondClear™ and MuckAway™, and how does it help my pond? | Ponds & Lakes Q&A

Q: I hear about being proactive, but what are PondClear™ and MuckAway™, and how does it help my pond?

Q: I hear about being proactive, but what are PondClear™ and MuckAway™, and how does it help my pond?

Ed – Cambridge, NY

A: Your agricultural pond or fish-filled lake faces an unseen threat: an inorganic chemical called phosphate. Found in many fertilizers used in farming applications, phosphates do wonders for helping plants to grow—but when they leech into your pond or lake after a heavy rain, they can fuel algae blooms that can ultimately do harm to your fish population, not to mention being unsightly and malodorous.

Though it may be difficult to prevent those phosphates from finding their way into your water, you can take a proactive approach to minimize the algae growth and protect your fish. This involves binding and removing the phosphates, cleaning up the water column and breaking down accumulated muck.

And that’s where EcoBoost™, PondClear™ and MuckAway™ come into play. They’re the one-two-three punch your pond needs to stay healthy.

Bind the Phosphates

EcoBoost™, which is found in ClearPAC® PLUS, grabs hold of the algae-stimulating phosphates and other suspended organics in your pond, allowing the beneficial bacteria in PondClear™ and MuckAway™ to grow and gobble through excess nutrients in the water. EcoBoost contains more than 80 trace minerals to promote fish health and fast growth, as well as helping to create clean and clear water that your finned friends will appreciate!

Clean the Water

PondClear™ is designed to clean the water from the top down. It contains beneficial bacteria that devour excess nutrients that are suspended in the water, which feed algae. The natural bacteria digest the organic debris, leaving behind water that’s clean and clear while promoting a healthy ecosystem for your lake’s inhabitants.

Remove the Muck

MuckAway™ cleans the water from the bottom up. The pellets sink to the bottom of your pond and release beneficial bacteria that eat away at any accumulated pond muck. The result is improved water clarity and reduced odor. With regular use, MuckAway™ can break down up to 5 inches of muck per year—and that means less nutrients to feed algae blooms.

Keep in mind that these products will take some time to kick in. It took a long time for the muck and debris to collect in your pond or lake, and so it won’t disappear overnight. Be patient and follow the dosage schedule, and you’ll ultimately be pleased with the results.

Pond Talk: What algae-prevention strategy do you follow?

Remove Excess Nutrients & Noxious Odros - Pond Logic® PondClear™

Now that temperatures are getting warmer, algae keeps growing. How do I stop algae from taking over? | Ponds & Lakes Q&A

Q: Now that temperatures are getting warmer, algae keeps growing. How do I stop algae from taking over?

Q: Now that temperatures are getting warmer, algae keeps growing. How do I stop algae from taking over?

Jeremy – Clinton, IA

A: It sure doesn’t take much for algae to grow out of control! Combine warm sunshine with some algae-loving nutrients and, before long, you’ll have a pond full of pea soup. When it’s thick and dense, those tiny plants can then suck all the oxygen from the water, leaving your fish gasping for air. Plus, it looks bad and can cause some major stink.

For the health of your fish and your lake, you must regain control. Here’s a two-pronged approach that works to eliminate the green stuff and prevent it from taking over.

TREAT THE GROWTH

First, you need to get rid of the algae blooms. For floating algae and chara that’s less than 3 feet deep, use Algae Defense®. The aquatic algaecide comes in a fast-acting liquid formula that can be directly applied to your lake with a pressurized sprayer. If you’re dealing with chara that’s deeper than 3 feet, use Cutrine®-Plus. Its granular formula sinks to the bottom of your lake and destroys the algae.

Once the algaecides start working to kill the blooms, don’t forget to remove dead algae from the pond with a tool like the Pond Rake. If you leave the dead foliage in the lake, will start to break down and become nutrients—or algae food—for new blooms. It’s a vicious cycle!

TREAT THE SOURCE

Now that you’ve got the algae under control, it’s time to get proactive and prevent its future growth. Begin by adding PondClear™ & MuckAway™. These products contain beneficial bacteria that gobble through excess nutrients like suspended organic waste and muck in your pond. The result: Clean and clear water with no noxious odors.

Next, shade the water with pond dye. By preventing the sun’s rays from penetrating the water, you’ll starve the algae of sunlight, which it needs to thrive.

ONE-STOP SHOPPING

Looking for an easy solution? Check out the ClearPAC® PLUS. This all-in-one algae destroyer contains everything you’ll need to kill the algae and prevent future growth. It contains algaecide, beneficial bacteria and pond dye to fight algae and suspended debris all season long.

Pond Talk: How do you prevent excess nutrients from entering your pond or lake?

Eliminate Algae Quickly - Pond Logic® Algae Defense® & Treatment Booster™ PLUS Combo

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