BEND, OR – Fire managers are planning to ignite a prescribed understory burn tomorrow and Wednesday on the Deschutes National Forest.  Prescribed burning will help maintain the Ponderosa Pine ecosystem by reducing heavy accumulation of ground fuels and improving habitat for native plants and wildlife. The prescribed burn unit is 700 acres and part of the Deadlog project area on the Bend-Fort Rock Ranger District.  It is located about 28 miles east of La Pine. Ignition will begin on tomorrow and is expected to continue into Wednesday.