Pond Duckweed

Duckweed is a floating pond weed that is often misidentified as algae.  Duckweed is hard enough to kill when it is identified properly.  The most important step to treating any pond weed is to ensure you have identified your growth.

Proper identification requires examining the growth in your hand.  The reason why duckweed is misidentified is because at a distance it just looks like floating green mats.  However, at closer examination you can clearly tell that thousands of small leaves are what makes up the dense floating mat.  Duckweed leaves are no bigger than a pencil eraser and have a tiny hair like stem that will hang from the leaf.  This weed is not rooted and that is another reason it is misidentified, not all weeds have to be rooted.  

Duckweed can be treated with Sanco’s aquatic herbicide, Tsunami DQ.  Tsunami DQ should be used at the maximum dosage in order to effectively control duckweed.  The maximum dosage for duckweed control is 2 gallons per acre.  For severe infestations of duckweed a second  and even a third application may be necessary. 

If duckweed is left untreated, it will take over making the pond useless for most if not all recreational activities.  A sever duckweed infestation can also cause harm to your fish.

For more information on how to tread or identify your duckweed, Contact Sanco.