Algae - Copper Sulfate aka Bluestone

[igkya]

I've used Copper Sulfate previously, but it's hard to get and the nearest place is a 1.5 hour drive away. I found a local place that can get this in a powder form, instead of the fine sand-like blue crystals. Anyone tried the powder form? if so, how'd it work, compared the crystals?

[bgturf]

Both will work for you. The fines are faster acting. You need to get good distribution across the treated area.

[DW]

Either form works, only difference will be how you apply (powder can float in air on a windy day and end up in a different spot than you expected). You can mix in a bucket then toss that in the lake as an option.

[igkya]

@bgturf @DW Thanks for responding.

@bgturf - What do you mean by "fines"? the powder version?

 

I used a burlap sack with the sand-like crystals to distribute them, but not sure how well that would work with the powder. Good idea on use of bucket.