Sprayer, growth regulator O 04 oenergyarea 1.2160101 ostir 0.15 op_notes4 Sprayer operation, General use in season growth regulator application. Crop is not killed. op_devnotes4 R2 Notes: Spray growth regulators on growing crop. Crop is not killed. 11/17/01 DTL. Revised Sprayer, insecticide for application of plant growth regulators for cotton (for example, Pix and Mepichlor). rev 082211 LOS. Added to the DB. This assumes no crop flattening. 4-12-12 MAS LMOD and WEPS DB correlation, existing WEPS operation record, 160410 jp