Bruce from San Antonio writes,
Can I spray Demon WP in my ducts for scorpion control?
Scorpions are falling out of my A/C ducts can I spray into my ducts, is it safe
You cannot spray Demon WP or any other insecticide into your ducts. You can spray all around the exterior of your home and in your crawl space if you have one and around the vent covers. You should thoroughly check your duct work for holes and seal up any if found. In most cases insects are not actually in the ducts but instead they are crawling on exterior of them and then squeezing out beside the duct and coming out of the vent cover. You should remove the vent cover and caulk around the duct so that there are no opening allowing insects to pass beside the ducts and out of the vent covers.
Answer last updated on: 05/17/2012