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• PRO

  Phil Voice August 5, 2014 at 3:32pm

  Hi Tom

  I have no personal experience of blanket weed but the RHS website says this:

  "For smaller ponds and water features try a liquid barley straw extract bought from a garden centre or aquatic nursery. Various other products are available that combine barley straw extract with a blend of micro-organisms designed to remove nutrients from the water and discourage algal growth"

  https://www.rhs.org.uk/advice/profile?PID=162
• PRO

  Gary RK August 5, 2014 at 5:59pm

  We've used Dyofix (Black) with quite good success - see here :

      http://www.landscapejuicenetwork.com/forum/topics/duckweed-control 

      http://www.dyofix.co.uk/commercial-applications.html

  Also believe Agrigem (LJN Supplier Member) has just introduced similar products......
• 

  Agrigem - Sarah Kimm August 5, 2014 at 8:35pm

  Hi Tom

  As Gary has mentioned above, we have a product called pond weed inhibitor that reduces the amount of light that can penetrate the water of the pond so the weeds cannot photosynthesise. Please find a link to it below.

  http://www.agrigem.co.uk/weed-killers/aquatic/lake-inhibitor.html

  If you have any other questions, please don't hesitate to get in touch.

  Cheers Ollie

  www.agrigem.co.uk

  ollie.wright@agrigem.co.uk

  0800 133 7849
• PRO Supplier

  Progreen Weed Control August 6, 2014 at 1:29pm

  Hi Tom,

  Black colourants are a good option for rooted or sub surface growing algae/ weed to block sunlight and limit photosynthesis - however, blanket weed tends to float on the surface so colourants will have little effect in the top few inches of a pond.

  We have a product, Procrystal for filamentous or unicellular algae - easy to administer in dissolvable sachets. Its a natural strain of bacteria/ inert clay that feeds on the excess nutrients, such as Nitrogen, that cause algal blooms:

  http://www.progreen.co.uk/Golf-turf-products/Other-Products/ProCrys...

  There are several types of algae that collectively are called blanket weed so if you are unsure just give us a shout:
  PH: 0800 032 6262
• 

  Online Landscape Design August 7, 2014 at 10:37am

  All good suggestions, thank you. I have tried Barley extract in the past w/ no results whatsoever.
  Will give one of the others a go!
• 

  Lawncare-4u.co.uk August 10, 2014 at 1:36pm

  siltex
• 

  Nic Johnson August 10, 2014 at 5:46pm

  I've used cloverleaf which worked well they use it at the Eden project
• 

  Lawncare-4u.co.uk August 10, 2014 at 9:43pm

  where from Nick?
  
  Nic Johnson said:

  I've used cloverleaf which worked well they use it at the Eden project
• 

  Online Landscape Design August 26, 2014 at 10:49am

  I ordered Cloverleaf off the i-net and WOW! I used it on Fri by Mon the algae was completely gone, leaving only clear, clean water. No wildlife was seemingly affected but I would def recommend using the follow up treatment they make as well (can't remember the name just now).

  Thanks Nic!
• 

  Lawncare-4u.co.uk September 2, 2014 at 10:25pm

  http://www.swelluk.com/pond/algae-control-1637/blanket-weed-control...

  this stuff?