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When treating weeds and algae, why do I have to treat in sections? | Ponds & Lakes Q&A

Q: When treating weeds and algae, why do I have to treat in sections?

Q: When treating weeds and algae, why do I have to treat in sections?

Zahn- Cedar Rapids, IA

A: It’s all about the fish. Though it’s an inconvenience to you, treating your lake or pond’s weeds and algae in sections is critical for the health of your underwater inhabitants. Those herbicides and algaecides deplete the oxygen in the pond, creating a stressful environment for the fish. Partitioning the treatments keeps oxygen levels safe while minimizing the stress.

When combating weeds and algae in the summertime, remember these three things:

  • Warm Weather = Less Oxygen: In the hot summer months, the water column will naturally hold less oxygen as it warms up.
  • Chemical Treatments = Less Oxygen: When you treat the weeds and algae with Shoreline Defense® or Algae Defense®, the oxygen levels will decline in your pond.
  • Decaying Matter = Less Oxygen:As the herbicide and algaecide start to work, the decaying matter will begin to be consumed by microorganisms, which use up the oxygen in the water.

All of these things create a stressful situation for your fish. When that happens, their immune systems could suffer, and they could develop and succumb to disease – which is something you don’t want to happen.

So while treating your pond or lake, break it into quarter sections. Then treat one section and wait 10 to 14 days to allow the water time to rebalance its oxygen level before treating the next section. Some other things you can do to improve the oxygen levels in your pond:

  • Add Aeration: Aeration, like the Pond Series™ Aeration Systems, adds oxygen to the water below the surface. The oxygen is utilized by the fish as well as the beneficial bacteria and microorganisms, which break down the muck and detritus that feed the algae and weeds.
  • Rake Away the Debris: As the herbicide and algaecide go to work killing the pond pests, take time to rake out the dead debris before it becomes algae- and weed-feeding pond muck. The Pond & Beach Rake makes the chore quick and easy.

Pond Talk: What kinds of spring and summer maintenance chores have you been doing so far this year?

Create the Perfect Pond - Airmax(r) Pond Series(t) Aeration Systems

What is the difference between algae and Chara and how should I treat them? | Pond & Lakes Q&A

What is the difference between algae and Chara and how should I treat them?

What is the difference between algae and Chara and how should I treat them?
Veronica – Savannah, GA

To an entomologist, the differences between a cockroach and a termite may be a subject of profound fascination. However, to a homeowner, they’re both insect problems. If you have them, you sure as heck want to get rid of them – and the sooner the better.

Likewise, when the seasoned water biologist sees filamentous algae floating on the surface of a pond, he can probably identify the strain — Spirogyra, Oscillatoria, Pithophora, Anabaena or perhaps some combination thereof. Just beneath the surface, he might point out the gray-green, cylindrical branches of Chara, another form of algae that is often mistaken for a submerged flowering plant, except it has no flower and no defined root system.

Most of you would probably find this at least mildly interesting, unless, of course, the biologist is talking about your pond. Where he sees variations of filamentous algae, you see ‘pond scum’:what he identifies as Chara, you know as ‘skunkweed’ or ‘muskgrass.’ Suddenly, what it is, matters a whole lot less to you than how to get rid of it.

Well, fortunately, we’ve got some great options for you. One gallon of Algae Defense, mixed with water and Cide-Kick, can treat up to 8,000 square feet of pond surface. It’s best applied with an Airmax Pond Sprayer. It should come as no surprise that the sooner you address an algae issue with Algae Defense, the quicker and more effective the results. Algae Defense is best used to eliminate algae on or just below the surface of your pond. For bottom forming algae, like Chara, we suggest Cutrine Granular – 12 pounds can treat 8,700 square feet.

If you find that the algae in your pond has graduated from ‘issue’ to ‘problem,’ you may find that multiple applications of Algae Defense and Cutrine Granular are necessary. Make sure you treat your pond in small sections waiting a week between treatments, and have sufficient aeration when treating during the hot summer months. We also recommend following up treatments with the use of PondLogic PondClear and PondLogic MuckAway, which use environmentally friendly bacteria to break down the dead algae.

When it comes to the health of your pond, knowing what goes on is important, but knowing how to deal with it is essential.

Pond Talk: Have you learned any tips or tricks to treating algae in you pond?

Pond Logic Algae Defense Algaecide

I have phragmites in my pond, and they are so aggressive they even outgrow the cattails. What should I do? | Pond & Lakes Q&A

I have phragmites in my pond, and they are so aggressive they even outgrow the cattails. What should I do?

I have phragmites in my pond, and they are so aggressive they even outgrow the cattails. What should I do?
Kandy – Portland, OR

Phragmites are the worst kind of uninvited guest: once it makes its appearance, it’s too late to give it the slip. For those who have experienced phragmites, they’ll attest to its tenacity. They’ll also attest to its heartiness. Unlike the plants you’re actually trying to grow in your pond, phragmites requires no care and feeding at all – and it’s remarkably adept at withstanding any effort to slow it down. .

Characterized by a green stalk with purple/tan plumes in late July, the majority of each phragmites plant is underground. As a result, by the time you actually see a phragmites plant in your pond, its root system is well established – laying the groundwork to take over the entire body of water. In fact, phragmites plants continue to spread throughout their life, sending stalks skyward at a blistering pace. And once the stalks reach maturity – typically from early to late summer – the plants double their efforts at pond domination by distributing seeds throughout the watershed. Phragmites, it seems, is quite capable at taking care of itself.

When taken alone, phragmites might actually be considered attractive. Unfortunately, it has no interest in sharing its turf. Through its aggressive growth, phragmites chokes out native plant species in short order, and can transform an entire pond’s flora over the course of a single season. And while it’s nearly impossible to eliminate phragmites once it’s established, our Kraken Aquatic Herbicide and Cide-Kick Combo – carefully and regularly applied with our Airmax Specialty Pressurized Pond Chemical Tank-Sprayer or our 4-Gallon Backpack Pond Sprayer – can significantly impair root system growth, while leaving room for the plants you’d like to keep around.

After herbicides are applied, many pond owners are eager to eliminate both existing growth and dead stalks left over from the previous season. Our Aquatic Weed Cutter makes short work of offending plants. Once the cutting is done, our Aquatic Weed Rake helps to remove mess. In some instances, pond users also use controlled burns – after herbicide application – to remove standing plants. While this can be effective, it should never be practiced apart from herbicide use. Some evidence suggests that burning alone – without the use of herbicides – can actually increase the density of phragmites plants.

Good luck with your battle against phragmites. Stay vigilant, stay focused, and act quickly to curb new growth. The fight may last a long time – but the results will be worth the effort.

Pond Talk: Have you battled phragmites in your pond?

Kraken and Cide-Kick Combo

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