It implies baking soda and fine sugar. And it's totally bio.
Please read on...
Step 1: Ingredients
Then mix them in a container.
There should be a ratio of 1/3 (3 units of sugar for 1 unit of baking soda).
Step 2: Pack It Up
I personally prefer to fold it into a triangle for ease of storage and simplicity (as a bonus you can take it, rip it open, throw it on the ground and let it do its magic).
Step 3: Why and How It Works
Also baking soda can neutralize acid soil making it fit for plants, and the sugar can help the plant grow (only if added in very small quantities). But beware it is not necessarily beneficial for the soil or plants for it can kill the microbes maintaining the soil rich for plants.
And its biodegradable.
I hope you'll find this trick useful in your battle against bugs.
PS.This is my second instructable. Feedback appreciated.