Sap with dirty tricks has a 10yards range.
Magma totem 8yards
Fire Nova: 10 yard - CD: 10sec/6sec w talent/3sec w glyphe
Thunder: 12 yards glyphed
Earthbind totem: 12yards with talents and 10sec CD with talents

So there is a bad chance to hit the rogue with AOE damage alone.
In combination with an earthbind totem and the root talent it could work better.