How can I control Naiad in my pond? Kristin – Modesto, CA
Do You Know Who You Are Dealing With?
When faced with an outbreak of weeds in their pond some pond owners tend to rush into buying aquatic herbicides and algaecides in an attempt to clear up the pond as fast as possible. While we agree with the idea that your weeds need to disappear on the double, you want to make sure you take some time out to identify your intruder. When you know what you are dealing with your can then chose a product to treat it that will give you the best bang for your buck. If you are having trouble identifying a particular weed you can e-mail a couple close up pictures to The Pond Guy® at firstname.lastname@example.org or check out our Weed ID Guide.
What’s The Difference?
Knowing is half the battle in your war against aquatic weeds. So what do you need to know about Naiad to correctly identify it in a line-up of other unruly pond perpetrators? Naiad is an annual plant that branches profusely and forms very dense stands of rooted submerged vegetation. Leaves are dark green to greenish-purple, ribbon-like, opposite or in a whorl of three, mostly less than 1/2 inch long and 1/8 inch wide. Single seeds are found encased in the leaf sheath. Southern naiad reproduces by seeds and fragmentation. Flowers are at the base of the leaves but so small that they can only be observed with magnification. While Naiad is often confused with Chara at first glance, Chara has a strong, unpleasant odor and a crunchy texture that sets it apart from its counterpart. Chara also is very easy to pull out since it has no attached root base.
Pick Your Pony
You will find a stable full of products available for treating Naiad each with their own application methods and water use restrictions. Hydrolthol 191 for example is a granular that sinks to the bottom of the pond and is applied with a hand spreader. It carries water use restrictions such as a 3 day fish consumption restriction and a 25 day irrigation restriction. Ultra PondWeed Defense® on the other hand is a liquid aquatic herbicide that is applied via a Tank Sprayer and carries only a 5 day irrigation restriction. Read each herbicides application instructions, water use restrictions and dosage rates to determine which product is best for you. In addition to Hydrothol and Ultra Pondweed Defense®, Sonar™ A.S. can also be a viable option for treating Naiad.
Revenge Is A Dish Best Served Warm
For optimal results you will want to treat your pond when your water temps are above 50°F. Waiting for warmer weather in late Spring and early Summer ensures that the weeds in your pond are actively growing and will eagerly take the chemical you add to the water. Once the weeds are killed it is then safe for you to rake them out of the pond using a Pond & Beach Rake or something similar. Keeping your ponds nutrient load in check with MuckAway™ and PondClear™ and proper Aeration will make sure you spend less time wrestling weeds in your pond and more time enjoying your ponding season.
POND TALK: Tell us about your experience with Naiad and/or Chara.
Filed under: Algae Control, Algae Defense, Chara (Algae), Emergent Weeds, Muck, MuckAway, Pond & Lake, Pond Clear, Pond Dye, Pondweeds, Uncategorized, Weed Identification | Tagged: algae, algeacide, aquatic algaecide, aquatic herbicides, how can i keep my pond clear, master test kit, naiad, pond maintenance, pond salt, submerged vegetation, water weed rake, Weed ID Guide, weed outbreak | 4 Comments »