Defoliate

Necromancy
Level: Artificer * 2, Druid * 2, Hunter * 1, Ranger * 1, Sorcerer */Wizard * 2
Components: V, S, M (a locust)
Casting Time: 1 Standard Action
Range: close (25 ft. + 5 ft./2 levels)
Area: see text
Target: see text
Duration: instantaneous
Saving Throw: None
Spell Resistance: yes
  You hurl a tiny ball of negative energy, destroying plant life either in a line 60 feet long or a 10-foot-radius spread. This effect removes the cover and concealment provided by trees and undergrowth, eliminates the movement penalties associated with undergrowth, and so forth.
  You may also target a single plant creature with this spell.
  You must succeed on a ranged Touch Attack to hit your target.
  An affected plant creature takes 2d8 points of damage.