Kill bed bugs, fleas, and other listed insects fast with Ortho Home Defense Max Bed Bug Killer spray. The formula kills the toughest (pyrethroid-resistant) bed bugs and their eggs. This fast-acting spray works on bed bugs, fleas, brown dog ticks, ants (excluding fire, pharaoh, and harvester ants), spiders (excluding brown recluse and black widow), and other insects (as listed). Its keeps on killing bed bugs for up to 16 weeks on ceramic (non-porous) surfaces. Use it as a spot treatment to kill the bugs you see, and the ones hiding, by targeting bed frames, headboards, floors, baseboards, furniture, moldings, ceilings, walls, and carpeting. Use as the second step in the Ortho Bed Bug Solution System. Step 1 involves the detection of bed bugs with the Ortho Home Defense Max Bed Bug Trap and step 3 calls for Ortho Home Defense Max Bed Bug & Flea Killer Powder, an easy-to-use treatment for cracks, crevices and other hard to reach places (sold separately).