Quick Google search produced the following, from the MegaGrow web site:
http://www.mymegagro.com/index.cfm?srccd=g012

"MegaGro is used commercially to produce various effects in orchids. Care
should be taken since MegaGro can cause stem elongation, and may weaken the
plant stem. Like most flowers, orchids will respond well to MegaGro spray
treatments to produce bigger blooms and increase inflorescence production.
Certain research, although inconclusive at this point, suggests that MegaGro
may aid in triggering off-season spiking and differentiation in the
flowering stem."

Sounds like something a grower might use to force out of season blooming to
coincide with show seasons, etc. Guess I'll stick to DynaGro and/or
Peter's. Interesting, though.

Diana