Jason, you'll love it! I'm about 4 weeks from my last spray and i can tell because we can start seeing more bugs at night (not mosquitoes tho). So I'll be reapplying this week.
Yes - this will kill spiders and silverfish . from the site “ Yes, Bifen IT is labeled for spiders. The mixing ratio is 1 fl oz per gallon of water. Be sure to spray the areas where spiders are present so that they will come in contact with the treated area, such as around windows, doors, etc. This can be done every 30 days as needed indoors and outdoors.” if you pick it up, i’d use coupon code - familydiytv
