I got another outbreak of that funky floating stuff on the pond.  Hit it with some copper sulfate and a dose of diuron.  It ain't under control yet.  Also water is funky and not clear as before the outbreak.  I do aeriate.

Any thoughts on first id.  Guess i am gonna dissolve some more copper sulfate and put in today.

When I put in the copper sulfate the big ole cats won't come up to eat for a few days.

Save my day please.

If it's the bright green stuff that is real small with three leaves, then you need Diquat.  You should also get a sulfactant to make it float.  I have read where you can use vegetable oil for this as well.  I try to spray it on the weed and along the shore line where any may be laying.  It'll kill the weeds or grass along the shore also so spray accordingly.  The stuff I got I calculated 1 pint to 10 gallons of water.  I always have some left over so I just keep spraying it until it's gone.  I put my sprayer in my little yard wagon, hook it up to my ZT and just drive around the pond and spray as I go.

My thought is that the geese, herons, ducks and what ever other critters visit, bring it from a marsh down behind my property.  Once it gets started it seems to grow very fast and spread quickly.

the aqua shade has some chemicals in it to help kill it or control it dont know which it is now,,,but i put it in, in the spring and nice blue clear water all summer,,,course the grass carp eat all the other stuff,,i think the aqua shade acts like a pair of sun glasses for the water and filters out the UV light that makes the green muc grow,,,it turn the water about the same color as the stuff you are using but it stays that color

i did the chemical copper sulfate thing for a couple summers ,,but it seemed like when i thought i would have it whipped it would always come back,,,,

in the spring the rain fill up my pond and runs it over,,so i have to use the aqua shade about every spring,,,i have about 3.5 acres of water and i only put in about 1 gal,,,it calls for more but that seems to work along with the fish eating that crap ,,,,my pond is clear and clean right now,,,and will stay that way until it over flows and washes in new water 

just what has worked for me

ocharry

I think John is talking bout duck weed.  It is not that.

This stuff is green clumpy stuff that floats.  I have never seen the carp eat it.

I have aqua shade in the pond.  It does not seem to help with the floating green crap.

One of the biggest problems for ponds is runoff of sweet water from fertilizing or animal waste. If there is flow thru the pond, check the supply. If not take several samples of water using a Nitrate kit. High nitrates (food) = algea.

been doing some research.

I think CmdrDuck is in agreement with my ideas from a couple of extension office sites.

It is hotter than whatever here for this time of year. I am gonna increase the aeration one more hour per day, put some more dye in there, get another grass carp in the spring, and go from there.

Thanks all