Jack's idea would probably be like "let it get to California and let the wildfires take care of it." Or invent a freeze-ray or something. You'd have to call in some super-serious weed specialist, kinda like the pest control guy from "Over the Hedge." Epic battles would ensue. Until finally it becomes sentient, and Jack tricks it into getting onto a Goa'uld or Ori ship so it can go spread wherever it wants to.