Flea spray didn't work

Question: I sprayed my home and left for vacation. Why did I find more fleas upon return?

Answer: Fleas go through four developmental stages – eggs, larvae, pupae and adults. Only the adult stage feeds on blood. When you sprayed, you probably controlled only the adult fleas, not the flea larvae or pupae. While you were gone, the non-blood feeding immature flea larvae and/or pupae developed into adults that needed to take a blood meal. Without a suitable host to feed on, they became very hungry and went after you upon your return.

This is a very common scenario when flea control efforts do not effectively target all flea stages. For this and other reasons, it is best to seek the advice and assistance of your local Orkin Pro. Orkin’s procedures for flea control includes techniques directed at all four stages of the insect. Your Orkin Pro will inspect your home and create a customized pest management plan based in science to help protect your home.

Read more about Flea control.

Ask Orkin

Get More Answers from Orkin

Summer pest control travel planning tips for vacation

Are these daddy long-leg spider droppings?

What is the cost for flea treatment?

Is pest control safe for newborn babies?

How do I get rid of mice in the house?

How can I prevent house flies in spring?

What are the tiny black bugs in my laundry room?

Where do cockroaches nest in your house?

Holes and tunnels in interior drywall

What kind of roaches are white in color?

Get a quote today

Eliminate pests and prevent future problems.

We are here for you 24 hours a day, 7 days a week.

877-819-5061

THE BEST IN PESTS.™

SERVICES

Pest ControlTermite ControlHome Services

PEST LIBRARY

Browse All Pests

CUSTOMER CARE

My AccountPay BillFind My BranchContact UsProduct Labels

Subscribe to Our Newsletter

© 2026 Orkin LLC

Terms of UsePrivacyAccessibility StatementSitemapCareers