Are cockroaches afraid of cold or heat?

I think everyone is familiar with this scene. In winter, there will be swarms of cockroaches behind the radiator, around the induction cooker and next to the computer host. This is because cockroaches are afraid of cold and will find a place with heat source to stay.

Cockroaches usually appear in the warm season of spring and summer. Once they arrive, there are fewer cockroaches in winter and cold weather.

other

Cockroaches are afraid of cucumbers and onions. Putting cucumbers and onions in places frequented by cockroaches can also achieve the effect of driving away cockroaches. In addition, cockroaches are also afraid of these poisonous plants, such as fresh peach leaves, evergreen, cornucopia, periploca, calendula, lily of the valley and other plants. As long as they smell these plants, cockroaches will run away.

Cockroaches are afraid of dry places without water. Once there is no water, cockroaches will die of lack of water, resulting in a very short life span.