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Wonder Soil

Tunnel Fill Bag

Tunnel Fill Bag

Regular price $ 69.99 USD
Regular price Sale price $ 69.99 USD
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Tunnel Fill can be used with any burrow including gophers, moles, squirrels, ground hogs, woodchucks, voles, skunks, badgers, rabbits, and more! 

One 6 LB bag of Tunnel Fill fills up to 200 ln ft. of Gopher Tunnels after water is added!

Prevent landscape or yard damage by filling otherwise empty tunnels! Add water and watch Tunnel Fill expand and turn into an applesauce consistency. Tunnel Fill uses natural spices to deter rodents from coming back! 

No special license required for using Tunnel Fill, it is biodegradable, non-toxic, family and pet safe!

Learn more here

Tunnel Fill has an applesauce consistency and should not be above the ground. Seal all gopher holes with a Wonder Soil Tunnel Plug


Coco coir, natural spices and potassium polyacrylate polymers.


How to use Tunnel Fill:
Find the rodent's burrow and pour a handful of Tunnel Fill down the hole. Use your hose to flush water down starting on high pressure for one minute then medium pressure for two minutes. Go to the other end of the tunnel and repeat. Tunnel Fill will expand to completely fill a tunnel as it absorbs the water. Please wait after you add water for the product to fully expand!

1. Place Tunnel Fill on the entrance hole or in a container.
2. Slowly add water and mix well.
3. Plant directly on top of the tunnel plug!

How much do I need?
There are lots of variables to this including how extensive the tunnels are, the target and the quality of your water. Higher quality water allows more absorption so lower quality water will require more product.

An average gopher tunnel system in Southern California where our product was tested took about 1/2 of our small containers to fill one system. A system is several mounds, feed holes, nests, food storage areas etc.

We would recommend buying two pounds for most small areas You can always buy more product if needed but this is enough to do a few systems with some product left over in case of a second application or future gopher activity. If you have a large property a small property with a large number of tunnel systems 4- 5 pounds may be a good starting point. Again, you can always purchase more if needed. Farms, parks, golf courses and other large area facilities may consider 50 pound purchases most economical.

Pest control companies wishing to add this product to their available services would probably start with 50 pounds. This will fill 40-100 systems depending on water quality, how big the systems are, etc.

Safety Data Sheet

View our SDS here

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Wonder Soil

is the only environmental friendly dry compressed coco coir mix with added amendments of worm castings, mycorrhizae, kelp, nutrients and more!

Our products have outstanding water retention with dependable drainage and aeration in the root zone. Save up to 50% of water, fertilizer, and seed to help your plants thrive!

Customer Reviews

Based on 8 reviews
Tyrone Johnson

Tunnel Fill Bag


Works like it should! So glad I found this.

Permaculture Greg
Yeah not so much...

A friend said to me you can just purchase your own cocopete and shove down the holes. The think I liked about the idea of tunnel fill was that it was small and could flow down the holes. I was expecting from the pictures I had seed a dime size piece and what we got in realtiy was a half dolar size piece. Because they are that size they don't go down the hole very well. Plus there is the idea that there is something other than coco pete in the product. One thing I read said a gell like substance and essential oils. All I could see in the product was coco pete. SO this is a very expensive version of coco pete that is not really worth the excessive price.

Archola Harlow

have not used it yet, the critter left for awhile, going to try it on saturday if weather is good

Norman Sperry

I still have not yet received my order