LC means lethal concentration. So harm without killing them will occur at lower
doses.
If you evenly spread that "spritz" out into the 1300 gallons the toxicity is low.
Dont know about your koi, but when they see me they come straight to where ever I am
and you start spritzing the leaves there is going to be a much higher concentration
locally where it is being spritzed and the fish will swim thru the area of higher
concentration.
this is also the problem with putting DRY potassium permanganate directly into the
pond. where you put it into the pond is going to have a very high concentration
especially because it sinks and doesnt dissolve instantly. the fish swims thru the
areas of high concentration and fries their gills. even using a stock solution is
tricky requiring mixing into the water with one hand while pouring with the other ...
the flapping hand hopefully chases the fish away.

nope, not for my fish. Ingrid

"Snooze" wrote:
wrote in message
...
is it safe for fish????? soap?????? I dont think so. Ingrid

Sorry Ingrid, but that response is fear mongering, with out any apparent
basis in fact.

The active ingredient in Safer Brand Insecticidal soap is 49% Potassium
salts of fatty acids.
Which has an LC50 of 18-30ppm on fish.

In a 1300 gal pond, 18ppm is about 0.234 gal or 0.88 liter. Since the soap
is at 49% concentration it converts' to half gal or 1.8L of product.

A few spritzes of the stuff is about one ounce? Or about 0.6ppm. At that
concentration it's not even worth bothering about.

References:
http://npic.orst.edu/factsheets/psfatech.pdf




~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
List Manager: Puregold Goldfish List at
http://weloveteaching.com/puregold/
sign up: http://groups.google.com/groups/dir?...s=Group+lookup
www.drsolo.com
Solve the problem, dont waste energy finding who's to blame
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
I receive no compensation for running the Puregold list or Puregold website.
I do not run nor receive any money from the ads at the old Puregold site.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Zone 5 next to Lake Michigan