How long do you leave barley straw in a pond for algae management?

How long do you leave barley straw in the pond for algae management?

There appears to be some confusion about the use of barley straw to retard the growth of algae in ponds.  Some users have been directed to leave it in 60 days and then take it out.  Others were told it is only good for about a month. What is the real story?

Since I have probably sold more straw to more customers than anyone out there and have probably received more feedback on what works, I feel comfortable to advice on this subject.  Here’s the deal.  Put the straw in the pond any time of year and LEAVE IT THERE UNTIL ITS GONE. It the decomposition bacteria feeding on the straw that makes it work.  As long as there is straw there, it is working or will work as long as the water is or again warms to above about 45 degrees.  If after a period of effectiveness and while the water is still warm, if the algae begin to re-surge, you can add new straw to the pond.  But do not take out the old.  Even when the volume of the old straw diminishes, leave it in as it is well inoculated with the beneficial bacteria.  And, yes, it is recommended to leave it in over the winter as it will reactivate again in the spring when the water warms up.