Feeding behavior of the German cockroach
The results showed that the German cockroaches
usually hid in their harborage during daytime. The
beginning of their feeding behaviors occurred around
05.00 pm and rapidly increased around 07.00 pm.
They also showed the first peak during the hours
between 07.00-10.00 pm. Their activities slowly
decreased starting at 11.00 pm. Then, their feeding
behavior was found again at 03.00 am and sharply
increased at 04.00 am. The second peak showed at
04.00-05.00 am. After that, their activities rapidly
decreased around 06.00 am. They then hid in their
harborage from around 07.00 am to 04.00 pm (Figure
4). Their feeding behavior started with leaving their
shelter and swinging their antenna to detect food
odor. The cockroaches walked to the food and
touched it, then, they started to feed and drink.