I've had success ridding areas of crickets & ants with diatomaceous earth.  It's safe, non-poisonous....try sprinkling some around where you see them.  It will cause them to self-destruct without hurting your animals, yourself or hurting the environment.  The only thing that's bad is that you need to put down this white powder & leave it for a while.  In my house, where I get invaded by all kinds of critters, I've found it works & then, I just sweep up the powder.  I'll send a good thought for you.   SkyM