How often you check really depends on how active the termites are in your stations. We recommend checking frequently so that you are keeping bait in the stations as long as termites are actively feeding on the Trelona Compressed Termite Bait.
Trelona Compressed Termite Bait must be kept at least 10 feet away from a well and at least 25 feet away from any body of water.
Trelona Compressed Termite bait should only be used in stations placed around/adjacent to homes as part of subterranean termite monitoring/prevention. They are not for use further out in the lawn or in or around vegetable gardens. For this type of area your best bet is to just pour boiling water on the insects/area you see activity. If there is raw wood around the edge of the bed, then you could treat the wood with Boracare or Timbor and then add a water-sealant to protect the wood from future infestations