On Mon, 28 May 2007 08:00:27 CST, "Davy"
wrote:

My wildlife non-fish pond was about a quarter covered in fairly attractive
floating blanket weed. Last night we had about 25mm of rain and strong
winds. This morning all the surface blanket weed is gone. Anyone know what
might have happened to it? It has not been blown to any one corner; and
besides it was a bugger to shift since it held tight to the other plants.
thanks, Davy

My guess, the pH on the surface changed drastically, causing the blanket
weed to sink or die? What is the pond's natural pH & buffering (KH)?

Sometimes, all of a sudden, just as algae comes, it spontaneously
disappears. Though I've always thought that was just suspended forms, I'm
hopefully if it applies to SA/blanket weed also. ~ jan
------------
Zone 7a, SE Washington State
Ponds: www.jjspond.us