From Creatures Wikia
This toxic spray has a systemic affect on the Beelacanth plant and will generally cause any plants it falls on to start to wilt and die. The sprayer mist is mildly harmful to creatures, so try and discourage inquisitive norns from getting too close when spraying!
Activating the bottle will release a spray of mist into the air which will drift and thin. The sprayer can be activated rapidly in succession - releasing more mist - but beware of CPU slowdown. A single or double spray is normally sufficient to clear the immediate area.
Pressing INJECT will place a single bottle of Solution X in the hand.
From Object Pack 2