Our family business will only be providing limited services over the Christmas & New Year break.

Orders will be processed based on Freight and Courier timings so expect delays during this time.

We are truly greatful that you have chosen our products and hope these delays do not inconvenience you too much.

Normal business recommences on Monday 5th January 2026

Regards Gardens Alive, Design Toscano NZ and Fish Science

Return to Home




MENU

Duckweed Control

Duckweed Control
Duckweed Control contains a specialist bacterial culture which removes nutrients key to the growth of the most common species of duckweed (lemna minor) so that once the majority of the existing weed has been removed its return is inhibited . Duckweed Control will not harm fish,wildlife or other plant life in the pond.
Price:
NZ$ 91.00 including GST
7510A
Out Of Stock

Product Description

However much effort you put into removing duckweed its almost impossible to remove it all and it will grow again incredibly quickly.  Ecopond Duckweed Control contains a specialist bacterial culture which removes nutrients key to the growth of the most common species of duckweed (lemna minor) so that once the majority of the existing weed has been manually removed and treatment is carried out its return is inhibited.  Duckweed Control will not harm fish, wildlife or other plant life in the pond. Duckweed Control is best applied in Spring as soon as duckweed growth is seen, but once the pond water temperature has reached 8 degrees to ensure effective microbial activity. However, it can be successfully applied right through the summer and early autumn (whilst temperature remains at a minimum 8-10 degrees) and this will prevent spore formation which otherwise leads to further duckweed growth the following Spring.

Key Points

  • Best applied in Spring as soon as growth is seen
  • Remove as much of existing weed as possible before dosing

You’ll find more dosing information and answers to Frequently Asked Questions about Duckweed Control on the attached pdf.