We will be rolling out several small fixes mid-day today (Jan 29.) We do not anticipate any disruptions or problems, but f you spot any unexpected issues after 12 noon (PST), please report them in the designated thread in the DG Site Updates forum.
Here's a sure way to get rid of them. Spread diatomaceous earth (I buy food grade, myself) over/into the ground. It's great - environmental (a form of natural occurring clay) safe (can be dissolved and ingested to cleanse the colon) and inexpensive. Also works against fleas.