Jun 10, 2014 - 06:41 AM
Outdoors, it can be puffed into the walls through weep holes, cracks and areas where electrical lines and where plumbing lines enter the structure. It can also be applied into attics, sub areas, etc. It is not designed to be sprinkled on the ground. Boractin has about the same toxicity as table salt, so it will kill grasses, shrubs, etc, just like salt would.
The best product to use outdoors is a sprayable insecticide that dries clear and does not harm plants such as Bifen or Demon WP.