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How To Control Pithophora Algaepithophora algae

If you are a pond owner or live near a lake, there’s a good chance that you’ll be dealing with algae sooner or later. Stubborn pond algae can ugly up a body of water quickly and can ruin recreation when all that muck is floating around. One such nightmare algae that plagues ponds or lakes is Pithophora algae, also commonly known as horsehair algae, thread algae, or cotton call algae. It is classified under Cladophoraceae. Pithophora algae has irregular branched out threads from a single attachment and looks similar to hair or wool with it’s long, thick strands. Pithophora can become problematic especially if your pond or lakeside is high amounts in iron, since it thrives in those conditions.

Pithophora algae belongs to the green filamentous algae family and can be found growing on the bottom of ponds or in dense mats floating on the surface. If you were to put this algae under a microscope, you would see that pithophora algae has filaments with akinetes, which are reproductive cells similar to spores. They appear lime green or dark green with a hint of brown. These spores are found on the water’s surface due to the buoyancy brought about by the gas bubbles which produce as they grow. When it rains heavy, you may think that the algae has disappeared but they merely would just sink to the bottom and would reappear on the surface after a few days.

If you are dealing with pithophora algae, you’ve come to the right place. Solutions Pest and Lawn can help you eliminate this pesky algae with our high quality algaecide products.

Browse our pithophora algae control products below. If you need any assistance with your order or any DIY advice, you can contact us directly via email, live chat or by phone and we will be happy to answer any questions you have.

How To Control Pithophora Algae: 3 Step Solution

Pithophora algae can be a big problem that can be hard to completely eradicate via conventional methods, especially if they have multiplied to an amount that they have overtaken a lake or pond. You can perform mechanical control by raking the algae up in clumps with a rake. However if you have a large body of water with a lot of algae, this could be a long, tedious task that will take up a lot of your time. That is why we suggest a mixture of chemical treatment and cultural control methods. We have shared below a basic 3 step program to tackle this persistent algae the right way.

Step 1: Before getting into purchasing aquatic treatments and spraying away, it is first necessary to conduct a detailed inspection and analysis of the body of water that will be treated for the algae. It is important to take into account the fishes and aquatic life that use the body of water as a habitat as well as the other vegetation in the water that is desirable and vital to the ecosystem before applying chemicals. You should also determine which algaecide will be best to apply to your pond or other body of water. The size of the body of water is also an important variable which will determine how to best approach treatment of pithophora algae to ensure success while also making sure no fishes and desired plants are harmed.

Step 2: Once you have selected the best chemical for you to use, you will then need to determine the application rate as well as time your application at the right time and temperature in order to successfully eliminate pithophora algae.  Some algae species can reach troublesome levels in cold water just after ice-out.  However, many aquatic herbicides to tackle algae work best in water warmer than 60 degrees F. When applying herbicides you should also make sure you have on the proper safety equipment such as protective eyewear, gloves and long sleeve clothing to protect you from possibly coming in contact with chemicals.

Step 3:
Using a backpack sprayer or hand-pump sprayer, apply the selected herbicide to your pond or lake during ideal temperatures and following the instructions carefully on the product label of the herbicide you chose. If the pond is heavily infested with pithophora algae, it may be necessary to treat the pond or lake in sections and let each section decompose for about two weeks before treating another section. Aeration, particularly at night, for several days after treatment may help control the oxygen depletion. Algae reproduces rapidly, and it is common not to get season-long control with algaecides.  Nearly all products we carry here at Solutions provide at least 3-4 weeks of improvement.  Retreatments are often necessary. We also advise you to use a rake to scoop away all the dead algae after treatment to ensure it doesn’t reaccumulate. There is a more detailed guide on applying aquatic herbicides in our Knowledge base.

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