How do you know if the boric acerbic is working to Kill roaches ? I bought some spread it around crevices..I have see less of...

I bought some spread it around crevices..I have see less of them..but I departed a thing of Vaseline start on and found a live one stuck in nearby!! Ewww! So do they come out to die ? Should i expect to see more ? Does that mean the boric tart is working ? Or do they just 'dissapear' cuz they die contained by the walls?oh and I had to squash 2 spiders today ? R they coming out to die too ?!

---

Answers:    it works they enjoy to eat it-you will see unresponsive roaches later on week or so unless they hiding contained by walls and cracks

---

if it's the german cockroach ,half inch long any black but usually brown.boric acid won't snuff out enough to gratify. get some roach bait made by combat ,in in the order of 3 months you won't see them again.tom

---