In Reply to: Gliders and the Sumac Tree? Safe???? posted by Scott Runnels on September 07, 1999 at 17:54:11:

Here's a list of some things that are safe...

Apple
Arbutus
Ash
Aspen
Beech
Birch
Cottonwood
Crabapple
Dogwood
Elm
Fir
Hawthorn
Larch
Madrone
Magnolia
Manzanita
Pine
Poplar
Sequoia (Redwood)
Willow
DO NOT use apricot, peach, plum, prune or nectarine. These belong to the Prunis species and can release cyanide when ingested.

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