Sprayer, backpack, post emergence O 04 oenergyarea 1.2499 ostir 0.15 op_notes4 Herbicide application, hand sprayer used manually to apply pesticides, to kill weeds but not the growing crop on small operations. User input, type of weed residue added and amount as dry matter lbs/acre. ofuel op_devnotes4 R2 Notes: Hand Sprayer for post emergence pesticides on limited resource operations 033111 DTL Added to DB 4-19-12 MAS LMOD and WEPS DB correlation, existing WEPS operation record, 160410 jp