Get the Clarke technical exercises and work on numbers 1 - 4. Play them where they are written and then gradually work your way up out of the staff and into the ledger lines.
Also check out the following:
www.craigfraedrichmusic.com. He is the section leader for the Army Blues and has a 65 page book of jazz scale studies that are free for educational use. The scale studies go through each mode of the ionian, dorian, phrygian, lydian, mixolydian, aeloian and locrian. He also includes dorian b2, harmonic minor, lydian aug... I think you get the idea. The plus is that these are not just scales, but actually patterns and ideas that you can then incorporate into your playing.
This site,
http://eddielewis.com/, also has some great free stuff.
Hope this helps.