Need pest help? Save $50 on your first recurring service today with code GET50

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

Should I buy a house with beam damage from insects?


Could it be ants instead of termites causing the damage?

Long, brown, hard shell bug that jumps

Carpenter Ant Infestation in the House


Large carpenter ant infestations can cause structural damage to your home. Make sure your home is protected from carpenter ants with Orkin.

Rat Mite Bites vs. Bed Bug Bites


Learn how to tell the difference between rat mites and bed bug infestations. Call an Orkin Pro for help with mite and bed bug control.

Do Bed Bugs Have Wings? | Flying Bed Bugs

How can I get rid of a spider in my car?


I saw a spider in my car today, but I was unable to kill it. What can I do now?

What kind of spider do I have?


I have large, hairy spiders in and around my house. Is it a tarantula or something else?

How or where do bed bug infestations originate?


I was wondering if you could answer some questions for me so I could include them in my article.

Is pest control safe for newborn babies?


We have a newborn in our house, and I'm wondering if it is safe to spray for pests.

Is it normal to see dead bugs showing up for several days after a pest control treatment


If so, does that mean there is an infestation problem?

Connect with Us

Our customer care team is available for you 24 hours a day.


Find a Branch

Our local Pros are the pest experts in your area.

Get a Personalized Quote

We will help you find the right treatment plan for your home.



Pest ControlTermite ControlPrevent and Protect


Browse All Pests

© 2023 Orkin LLC

Terms of UsePrivacyAccessibility StatementCareers

Your Branch  

Call Now