Enter the barn at Silva homestead, use the Arktos Pharma terminal, and select "Run Initialization Sequence." Follow and protect the pharmabot for one minute at three different locations in the nearby crop field. The crop spraying will attract enemies such as stingwings and mole rats. Since the bot is rather fragile (though self-healing between fights), it is advised to stay nearby or attract enemies away from it. Once all three locations are sprayed, the quest is completed.
- The pharmabot is mentioned in a terminal entry at Arktos Pharma.