It's really hard to say with the little bit of info you provided, but
leaf-tip burn is often a result of overdoing it with fertilizer or the
accumulation of fertilizer salts in the medium. Using too much nitrogen has
been implicated in that as well, and may stop plants from blooming.

If you can provide more info, maybe we can contribute better info in return.

--

Ray Barkalow First Rays Orchids
http://www.firstrays.com
Secure Online Ordering & Lots of Free Info!


"Terry" wrote in message
om...
My Catt orchids are getting burned tips on some of the leaves. Younger
plants are Ok only the more mature plants are showing the problem. I
also have one plant that has not bloomed in twenty years. It grows
lots of new leaves and looks healthy. Any suggestions would be
appreciated.