• Archives

  • Categories

  • Pages

Why can’t I treat my pond with the common weed killer I use around my yard? | Ponds & Lakes Q&A

Why can’t I treat my pond with the common weed killer I use around my yard?

Q: Why can’t I treat my pond with the common weed killer I use around my yard?

Duane – Spring Grove, PA

A: It may seem like a convenience and a cost savings to use your terrestrial weed herbicides to treat weeds in your pond or lake. But when it comes to managing nuisance growth in and around your pond, not all chemicals are created equally.

Though broad-spectrum-use herbicides like diuron work great on grassy terrestrial weeds, they’re not approved for use on cattails and water milfoil because of the direct contact with public waterways or possibility of leaching into drinking/ground water. Instead, you need to use products that are registered by the Environmental Protection Agency for aquatic use, like Pond Logic® Algae Defense®, PondWeed Defense® and Avocet® PLX aquatic herbicides.

Why the regulations? Read on for details.

Environmental Protection

The EPA registers products like herbicides for aquatic use to protect the environment. Its goal is to minimize harm while maximizing results.

The government agency tests the ingredients’ concentration, frequency of use and effectiveness for their short-term and long-term effects in their intended environment. It also checks the chemicals’ half life, which is how long the substances remain in the environment before breaking down enough to be considered non-toxic.

Safer for Your Pond Visitors

If you use unapproved chemicals in your pond or lake, you could be doing harm to not only the ecosystem but also to your fish, your livestock and wildlife, your soil and, most importantly, to yourself, your family and your neighbors.

Herbicides that have been approved by the EPA include specific restrictions and precautions on their labels about consuming fish after treating bodies of water. They caution against swimming in or drinking from treated ponds within a certain amount of time after application. They even warn of soil contamination issues that landowners or pond professionals should be aware of.

Chemicals that are not approved for aquatic use have none of these warnings because they have not been tested for their effects on the pond habitat. In fact, some products can actually be considered a contaminant to the aquatic environment – and you don’t want that, right?

Obey the EPA

Even if you don’t consume your game fish, swim in your lake or drink the water, you should steer clear of unapproved chemicals. Some of them can leach into the soil surrounding the pond or be released during heavy rains when ponds flood. That runoff – including the potentially toxic chemicals – can then be released into the public waterways or wetlands used by neighbors.

Play it safe. Obey the EPA.

Pond Talk: What do you think of the EPA’s regulation of aquatic herbicides?

Pond Logic PondWeed Defense - Eliminate Aquatic Weeds

Is there an easier way to get rid of weeds? I’m tired of pulling them by hand. | Ponds & Lakes Q&A

Is there an easier way to get rid of weeds? I’m tired of pulling them by hand.

Q: Is there an easier way to get rid of weeds? I’m tired of pulling them by hand.

Beverly – Richfield, WI

A: Who doesn’t love tools? They’re cool to look at, fun to play with – and, the best part, they help make chores easy. When it comes to maintaining your pond or lake, tools of all shapes and sizes will come in very handy, particularly these four must-haves, below.

Pond Rake

A pond rake pulls, gathers and removes dead debris from the surface or the bottom of a pond.

Debris on the surface of a pond, like algae or fallen leaves, can sink to the bottom and start to decay, adding to the muck and detritus that’s already there. All that debris degrades water quality, compromises fish health, provides a nutrient source for nuisance plants, and can even affect chemical treatments’ ability to work.

A floating/sub-surface pond rake, like the Pond Logic® Pond and Beach Rake, or a sub-surface pond rake, like the Jenlis Weed Raker™, lends a long helping hand. Elongated by rope so you can easily get the deep-water growth, both rakes work by removing submerged lake and pond weeds by their roots, slowing their spread.

Weed Cutter

A weed cutter, like the Pond Logic® Weed Cutter and the Jenlis WeedRazer®, mechanically slices through weeds at their stems so they can then be raked out.

The 28-inch, double-sided Pond Logic® Weed Cutter features a two-piece, rust-proof, powder-coated aluminum handle that’s 11 feet long. It’s great for removing floating aquatic vegetation, marginal weeds and cattails that extend past the pond’s edge.

The V-shaped Jenlis WeedRazer™ clears a 4-foot-wide path in pond weeds by sinking to the bottom and slicing through submerged weeds like watermilfoil, cattails and lily pads as you pull it across the pond. The razor-sharp tool weighs just 8 pounds, making it light enough to toss 30 feet or more yet heavy enough to sink straight to the bottom.

Sprayer

A sprayer makes pond chemical application easy. Most liquid chemicals are more effective when they’re sprayed over the target weed, and a tank sprayer, like an Airmax® Specialty Pressurized Pond Chemical Tank Sprayer, is designed just for this purpose. The 2.75-gallon pond tool features a wide-mouth fill top that minimizes accidental spills, a brass corrosive-resistant handle, and a high-pressure tank that allows you to spray hard-to-reach weeds.

Invest in a separate sprayer just for pond chemicals. If you use lawn and garden chemicals in the same sprayer that you use on your pond, doing so can be toxic to fish and other aquatic life as residue could be left behind. Keep your fish and pond plants healthy and happy: Use a different tool for the job.

Granular Spreader

The final must-have tool is a granular spreader, which helps you disperse granular herbicides evenly over your target area – and that means a more effective weed kill-off. The rust-proof Earthway® Granular Hand Spreader holds 10 pounds of material in a large hopper and features an application adjuster that lets you control how much product is released with its smooth-action hand crank.

Pond Talk: If you could only have one pond-care tool in your toolbox, what would it be? Why?

Pond Logic Pond & Beach Rake - Remove Weeds & Muck Build Up

Algae, Pollen or Both? | Ponds & Lakes Q&A

Algae, Pollen or Both?

Ah, spring. As the days get longer and the temperatures get warmer, trees and plants start flowering – which mean two things to pond and lake owners: algae blooms and pollen spores.

When those sneeze-triggering spores start flying and land on your lake’s surface, giving it a bright green, yellow or white oil slick-like appearance, it can be hard to tell whether you’re dealing with a troublesome algae bloom, a layer of pollen or a combo of them both.

A case like this calls for a little detective work, starting with a primer on algae types.

Know Your Algae

Planktonic Algae – the source of algae blooms, are floating, microscopic plants that color pond water shades of green, blue-green, brown or variations in between. In controlled amounts, this type of algae can actually be beneficial. It’s considered the start of the pond food chain as the tiny plants feed fish inhabitants, and it can also shade the pond’s bottom, preventing subsurface nuisance plants from growing. In uncontrolled amounts, however, planktonic algae can cause oxygen depletions and fish kill.

Filamentous Algae – single-celled plants that form long, visible chain, threads or filaments. These threads, which start growing along the bottom of the lake in shallow water or on rocks or other aquatic plants, intertwine and form mats that resemble wet wool. When these mats rise to the surface, they’re commonly referred to as pond scum. These mats make great homes for micro- and macro-invertebrates, like bugs and worms, but they’re also unsightly and can affect the oxygen levels and fish health in your lake.

Pollen Versus Algae

Unlike planktonic or filamentous algae, pollen simply settles on the water surface, creating an oil slick-like appearance on the lake or pond. When you run your fingers over a pollen-covered body of water, the green, yellow or white material will break apart. That doesn’t happen with algae. Instead, the tiny planktonic algae remains suspended in the water, while the filamentous algae can actually be grabbed and pulled out.

Clearing Things Up

The good news is that water circulation with a decorative fountain, such as Kasco’s 1/4HP Decorative Fountain, and subsurface aeration, such as an Airmax Aeration System, will help remedy both the algae and pollen situations. The movement of the water breaks up the pollen layer and it will eventually go away. If your lake or pond has a significant algae bloom, you may need to treat the water with an algaecide, like Pond Logic Algae Defense.

Pond Talk: What have you found to be the best way to manage algae in your lake or pond?

Kasco Decorative Fountains - Sound, Beauty & Aeration

Why Does Algae Keep Growing In My Pond, Even After I Treat With Algaecides? | Ponds & Lakes Q&A

Q: Why does algae keep growing in my pond, even after I treat with algaecides?

Cathy – Bagley, WI

A: Algae seems to take on a life of its own sometimes, doesn’t it? Once that green slimy, stringy or seaweed-looking stuff crops up, it keeps growing and growing until you wind up with a messy situation in your pond or lake. Even if you treat it with algaecides, it still grows back.

Turns out that all these tiny plants need to grow is sunlight and food source – both of which are abundant during certain sunny times of year and when there’s a healthy mix of detritus built up along the bottom of the lake. To make things worse (or better for the algae!), when a pond is treated with chemicals, the process just adds dead algae to the pond, which is actually a food source for the growing algae.

Rather than battle this green monster after it has a foothold, it’s best to take a proactive approach. After you verify that you’re dealing with algae and not weeds (read here for a quick lesson on chara and other types of algae), we recommend you follow these four all-natural steps for preventing algae attacks:

1. Use Aeration: Aeration systems, like Airmax Aeration®, circulates debris that has accumulated in the lake or pond so it doesn’t settle at the bottom and become algae food. Aeration also spreads the debris throughout the water column, making it more accessible to beneficial bacteria that break it down.

2. Use Natural Bacteria: Natural beneficial bacteria, such as Pond Logic® PondClear™ Beneficial Bacteria, power through nitrates, breaking down fish waste, leaves and other organics that accumulate in the pond. This naturally improves the water clarity as the bacteria devour the sediment.

3. Use EcoBoost™: Pond Logic® EcoBoost™ Bacteria Enhancer is an innovative product that binds algae-feeding phosphates in ponds and stimulates the growth of essential beneficial bacteria, which are essential when controlling algae in your lake or pond.

4. Use Pond Dye: Because algae thrive in sunlight, Pond Dye filters those rays and stops them from reaching below the surface, thereby preventing algae from growing. Plus, the cool colors mask the soupy green hue of the algae.

We can’t guarantee your algae problem will disappear, but if you follow these steps you’ll be creating a pond that’s inhospitable to algae invaders.

Pond Talk: How have your algae blooms been this spring and summer compared to last year?

Airmax Aeration Systems - Even Ponds Need To Breathe

Will Algaecides & Herbicides Harm My Beneficial Bacteria? | Ponds & Lakes Q&A

Will Algaecides & Herbicides Harm My Beneficial Bacteria?

Kenneth – Lawton, OK

Some chemical treatments can affect the performance of your beneficial bacteria. It’s best to wait 72 hours after a chemical treatment to add bacteria. Certain chemical treatments contain copper, and copper can reduce the effectiveness of bacteria. If you wait a few days, you’ll ensure no loss of bacteria from a chemical interaction and the bacteria will have a lot of newly killed weeds to feed on. If you can’t wait, apply bacteria away from the treated areas of your pond. For example, if you put chemicals around the edge of your pond, add bacteria such Pond Logic® PondClear™, to the center. This will prevent the chance of overlapping chemicals with natural bacteria.

When Should I Start Treating Floating Algae In My Pond? | Ponds & Lakes Q&A

When Should I Start Treating Floating Algae In My Pond?

When Should I Start Treating Floating Algae In My Pond?

Jacquelyn – Pottsville, PA

 

Spring is just around the corner and in some areas, algae is already growing. But the question we hear quite often around this time is, “When can I start?” or, “Is it too early to treat?” The answer really depends on what the weather is like at your pond.

Getting a jump start on algae early in the season can help control growth as the season progresses. Fortunately, treating floating algae and preventing its build up is rather easy and really only one factor may stop you…temperature.

Is your pond above or below 50 degrees? This is important because aquatic algicides become less effective when temperatures fall below 50° Fahrenheit. However, understand that treatments will still work, just not as well. If you have an abundance of algae growing when the water temperatures are below 50° Fahrenheit, it’s worth a quick treatment to get it under control early. If the water temperature is too low, wait to use any treatment and instead use a lake rake to remove excessive algae if you are not able to chemically treat it. Another up-and-coming product that works very well to skim floating debris is the PondSkim™ Pond Deskuzzer. The PondSkim™ is a tool that contains a float and debris catcher. Simply drag across the surface of the water to collect debris.

If you have algae already growing in your pond we suggest that you get a jump start on it and you’ll be happy you did.

Airmax Pond & Beach Rake

Do Cattails actually die in the winter or can I do something to prevent them from coming back? | Pond & Lake Q&A

Do Cattails actually die in the winter or can I do something to prevent them from coming back?

Do Cattails actually die in the winter or can I do something to prevent them from coming back?

Brian – Holland, MI

As grandfather used to say, “never trust a sleeping cattail.” Actually, grandfather never said that. But he should have – because it’s true.

During the winter months, cattail foliage dies off. Leaves and stems turn brown and dry up when the weather gets cold, and optimistic pond keepers dare to imagine their backyard water features without the scourge of unwanted cattails. But deep beneath the pond, cattail roots are alive and well in their dormant state, saving up their energy to come back strong in the spring.

Fortunately, cattails aren’t invincible. Depending on the season, enterprising pond owners can take steps to eliminate cattails, leaving their backyard water features in great shape to host more desirable aquatic plants and fish.

When winter rolls around, and cattails have dried up, it’s worthwhile to cut the dead foliage and remove it. Our Pond Rake/Weed Cutter Combo is specifically designed to make this process quick and easy. While this won’t kill the cattails, it will lay the groundwork for a successful spring offensive.

In spring, summer and fall, when cattail foliage is thriving, it’s time to apply our Avocet PLX Aquatic Herbicide. This safe, powerful herbicide is applied directly to all above-water cattail foliage. Once applied, the herbicide attacks and kills the entire plant – including its root system. Once the plant is dead, you’ll want to resume the use of your Pond Rake/Weed Cutter Combo to remove the dead plants and prevent their potential to spread.

While Avocet PLX is effective on spring growth, it’s most effective during late summer and fall, when foliage is at its peak.

Pond Talk: Do you clear out dead cattails in the fall to get a jump start on spring maintenance?

Lake Rake Weed Cutter Combo

Follow

Get every new post delivered to your Inbox.

Join 142 other followers