2. Cut off the head and tail of the banana peel and throw it away.

3. Dice the banana peel and put it on a plate.

4. Pour clear water into the dish, without banana peel.

5. add sugar.

6. Add detergent and put as much as possible.

7. Stir them thoroughly.

8. It is finished after mixing. Put the prepared bait in the corners and crevices frequented by cockroaches, and then wait for the cockroaches to trap themselves.