try perimeter spray

https://www.amazon.com/Ortho-0196710-Perimeter-1-Gallon-Centipede/dp/B008CQMKHK

所有跟帖： 

• 多谢柠檬大侠! 用过类似的，好象直接喷到也不死，而且担心在外面一喷，它们可能更是大部队地往屋里跑了。 -colorpurple- ♀ (0 bytes) () 09/03/2020 postreply 13:24:34

• non-porous perimeter -柠檬椰子汁- ♂ (303 bytes) () 09/03/2020 postreply 14:19:33

• Thanks for the suggestions. I called the pest control company. W -colorpurple- ♀ (0 bytes) () 09/03/2020 postreply 15:01:26

• What they do is to power spay from foundation to 10 feet out. -colorpurple- ♀ (0 bytes) () 09/03/2020 postreply 15:02:30