Beware of hazards in your home!

Here's a sign of a lazy pest controller.  When dusting a roof void for insect control they stand in the opening of the manhole and just fire in the dust rsndomly, usually at the roof or some timber framing. Doing a thorough job requires actually getting in the roof void and dusting the whole area evenly. If you're ever in a roof void and see this white powdery dust, wear a respirator, gloves and overalls for your safety.

 The dust was shot into the roof in one location and has coated the roof iron, not the intended location for insecticidal dust! 

The dust was shot into the roof in one location and has coated the roof iron, not the intended location for insecticidal dust!