1) Copper is a very effective herbicide, sometimes used to kill aquatic
plant life.
2) Copper is known to be toxic to several orchids and many other plants.

Why risk it when there are alternatives to choose from?

--

Ray Barkalow - First Rays Orchids - www.firstrays.com
Plants, Supplies, Books, Artwork, and Lots of Free Info!

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"Diana Kulaga" wrote in message
ink.net...
All,

As far as I know, copper is not good when mixed with Dendrobiums (leaf
drop). Phyton 27 is copper based. Yet, I know several people who say it's
okay to use.

Opinions, please?

Diana