Home :: for Indoor Property :: Natural Pest Control :: BioDefense® | 32 oz : Indoor Pest Control

BioDefense® | 32 oz : Indoor Pest Control

4.9/5 from 10 reviews | Read Reviews

All-natural 32oz spray for indoor pest control. Contact kill and repellent for all life stages. Covers 400 sq. ft. or 2,000 ft around perimeter. Non-toxic, plant-based formula is safe for both pets and people of all ages.
Fragrance Options
Market price: $42.99 save 7%
Our price: $39.99
  • Description
  • Ingredients
  • How To Use
  • Reviews
  • FAQ's

Natural Pesticides

BioDefense is a natural pesticide that was specially created for DIY pest control including routine prevention and infestations. It has no toxic effect on the environment, humans or animals. In fact, it is completely safe for use in food preparation areas. It can safely be used where children crawl and play, and on pet bedding!

Safe for Children, Pets & Living Area

Natural Pesticides

  • Kills on Contact
  • Kills Adult Insects, Eggs & Larvae
  • Safe for Children & Pets
  • No Gloves, Mask or Protective Eyewear required
  • Dries Invisible & Non Staining
  • Will Not Attract Dirt on Furniture, Carpet or Clothing
  • Human Food Grade Ingredients
  • Refreshing Cedar Aroma
  • 100% Kill rate to Fleas, Ticks, Mites, Bed Bugs & more

INDEPENDENT STUDY: Fleas, Ticks, Bed Bugs, Lice

As the top performing Natural Pesticide, BioDefense® is strong and effective for Residential, Commercial, Industrial, Governmental, Equine & Dairy pest control. Not for use on plant life.


BioDefense® Kills & Repels

  • Fleas
  • Ticks
  • Mites
  • Bed Bugs
  • Wasps
  • Yellow Jackets
  • Ants
  • Moths
  • Scorpion
  • Termites
  • Silverfish
  • Roaches
  • Lice
  • Spiders
  • 100's of Insects


CEDAR: organic cedarwood oil (active), hydrated silica (inert)

LEMONGRASS: organic cedarwood oil (active), therapeutic grade lemongrass oil (active), hydrated silica (inert)

BioDefense 32oz Cedar Label

BioDefense 32oz Lemongrass Label

BioDefense Information Sheet

How to DIY Pest Control

Like any pest control objective, application depends on the insect or parasite. For prevention & maintenance, use every few months. Spray under sinks, in pantry, closets, bathroom, laundry room, cracks & crevices or anywhere insects reside. Spray around windows and doors. With routine outdoor treatment using Wondercide EcoTreat lawn spray, BioDefense® natural pesticide will protect indoors for several months.



For parasite (flea, tick, bed bug, mite) control use BioDefense® until the objective is achieved. Use often on pet beds to ensure elimination of fleas as your pet comes and goes from your treated property. BioDefense® has a lengthy residual. It's not harmful so you can't use too much. Approved for everyday use.

For active insect populations, it is imperative to treat all indoor areas for complete elimination. Only 5% of the flea life cycle are adult fleas (the ones you see). The other 95% are in egg and larvae stages. In order to rid your home of fleas, you must treat the entire property (indoor/outdoor) and pets. Natural pesticides are proving to be more effective.

How Does BioDefense® compare to Chemical Pesticides?

Natural pesticides don't work the same way. Chemical-based treatments utilize water or petroleum distillates as a carrier for their active ingredients, most often Permethrins, or other formulations using primitive, nerve gas byproducts, commonly referred to as Pyrethroids. Wondercide BioDefense® combines its proprietary cedar oil blend of Texas Red Cedar and melted quartz. These two ingredients create an instant kill to fleas, ticks, mites and bed bugs. BioDefense® achieves 100% kill within seconds.

For Best Results

BioDefense® natural pesticide comes in a ready to use trigger sprayer. Home owners can easily handle diy pest control with the use of hand held compression sprayers or by using a non thermal ULV fogger for infestations. The ultimate in flea, mite & bed bug eradication is fogging with 1 gallon of BioDefense® per 1,500 sqft. You can also provide the solution to your exterminator or pest control operator for application. This product is safe for everyday use. If you have indoor - outdoor pets, consider using BioDefense® natural pesticides as an ongoing flea control preventative on pet beds, furniture & floors.
Submit Your Review

Customer Reviews

  •   I still can't believe how fast this works

    It had a strong smell at first but it went away in a few hours. We had fleas in our apartment and tried this smaller size before we spent money on the gallon (my husband was hesitant). It killed the fleas and we were so excited that we bought the gallon to finish spraying everything! I still can't believe how fast this works and how safe it is for our family. Many thanks from San Diego!

  •   Call me the Brown Recluse Killer :)

    I did some research with biodefense and brown recluses. I found a small spider and he stopped moving in about 15-20 seconds, was curled up in a ball and completely dead in about 45. Caught a good sized BR by the side of my house where I think they have been nesting in the basement window wells, that one took a good minute to die, but he was a tank. It definitely kills them and since I've been using it, I don't really see them around anymore. Good Stuff.

  •   I'm so glad it won't harm my 2 year old.

    This is the best thing I have found for roaches, hands down.

  •   I love your products!

    They work great and I feel safe using them around my family and pets!

  •   What a win!

    When I read that biodefense shouldn't be used on plants, it got me thinking... so I went out and carefully sprayed the thistles that I have such a hard time getting rid of in my landscaping. Within 2 hours they were brown and dead... 2 weeks later they haven't come back. I now have a pet friendly weed killer!! I know you don't advertise this as a feature, but I am thrilled to have this in my arsenal. I can now treat my weeds and allow my pets to use the yard. It also doesn't seem to be affecting the plants I want in the yard at all. Thanks!!

  •   A miracle in a bottle

    We tried everything to get rid of fleas and nothing was working. The chemicals were making me and my pets feeling sick so I decided to try this spray and I'm so happy with the result! All the fleas are gone finally and in such a quick amount of time too! Thank you for this wonderful product.

  •   Wondercide

    I tried a multitude of products for flea control, and none was effective and not holistic and safe like yours, I am extremely satisfied with your non-toxic product, and I will recommend it to my friends and relatives. I thank you from the bottom of my heart for saving the life of my dog. Sincerely yours, Harold Altman, I am interested in becoming an affiliate member of your company because I feel there is a need for this product. 631-439-9925

  •   Worked like a charm!

    Your product worked like a charm to get rid of fleas! Thank you so much for the quick delivery and follow up to your wonderful product!

  •   With Appreciation!

    Thank you for creating a product that works! Our beloved pets were so resistant to the topical flea products from the vets....and we were too! We could not find a natural product that worked and continued to be hopeful that we would find something that eliminated the flea problem. We have been using the spray on our cat this year and he has been flea free!
    The smell is slightly strong at first, although not offensive, and diminishes within the hour. Our appreciation goes out to you and your company. We are now going to try the outdoor yard protection with the next purchase. For others reading this review - it is the real deal!!

  •   wondercide awsome

    Thank you so much. I tried so many flea stuff. Your the best.....smells good too !! thanks again.

Submit Your Review

What's the difference between cedar and lemongrass?

For most Wondercide products, we offer various fragrance options. The most common Wondercide fragrances are lemongrass and cedar.

For Wondercide pest control products all products, no matter the fragrance, contain the same active ingredient—cedar oil. Cedar oil is what repels insects and makes our products effective.

No matter what fragrance you choose, your pest control product will contain 10% cedar oil. Since each product contains the same amount of cedar oil, all fragrances are equally effective at repelling and killing insects.

Why do we offer different fragrances?

We offer lemongrass and cedar fragrances merely to cater to different personal preferences. Oh, the freedom of choice!

Some people dislike the smell of cedar, and the lemongrass fragrance helps to lessen the cedar scent.

Most customers report that the lemongrass products smell “less strong” than the cedar options, and that the smell dissipates more quickly after spraying. However, not all customers can smell the difference.