What are cockroaches afraid of?

1) cockroaches are most afraid of dry places without water. Once a cockroach has no water, its life span is very short. Therefore, it is necessary to keep the room dry and clean, and do not leave a sanitary corner to leave a living environment for cockroaches;

2) Cockroaches are afraid of light, which is why cockroaches are generally not seen during the day and when there is light. Cockroaches hide in dark places during the day.

3) Cockroaches are afraid of cold. Generally speaking, there are many cockroaches in warm spring and summer, and fewer cockroaches in cold winter. Cockroaches accustomed to living in a warm environment will die below MINUS 4℃ because the toxic products accumulated in their bodies cannot be discharged. When the tissue falls off and is frozen, the cockroach will die soon.

4) cockroaches are afraid of high temperature. Generally, when the temperature around the stove is relatively high, there will be no cockroaches. If the indoor temperature reaches 40℃ in summer, it will take about 4 hours and the cockroach will die. Because the high temperature accelerates the metabolism of cockroaches, the result is an increase in oxygen demand. After a long time, the cockroach died of dehydration.

5) Cockroaches are afraid that plants containing toxic substances, such as fresh peach leaves, evergreen, cornucopia, periploca, calendula and lily of the valley, all contain toxic cardiac glycosides. Cockroaches are more afraid of these plants, and they will run away as long as they smell them.

6) Cockroaches are also afraid of cucumbers and onions. Putting cucumbers and onions in places frequented by cockroaches can also achieve the effect of driving away cockroaches.

Extended data:

1. Cockroaches are moderate in size, easy to raise and have strong reproductive ability. They have always been biologists' favorite experiments. Cockroaches are domestic pests that lie down during the day and come out at night. During the day, cockroaches mostly hide in the corner of the kitchen, in the gap of the cupboard, and go out to find food at night. Cockroaches eat almost everything, fragrant, smelly, hard and soft.

2. Sometimes cockroaches will run into the paste in the spine of the book to bite the book; Get into the TV and radio and bite the wire sheath; It even bites the baby's skin and fingers. It also eats feces, sputum and small animal carcasses. It excretes feces while eating, which makes the body dirty, carries germs, pollutes food and spreads various diseases, such as paratyphoid fever, dysentery, tuberculosis and acute hepatitis.

Cockroaches are omnivorous insects, and they eat almost everything, and they are not limited to meat and vegetables. They are all kinds of food and snacks, especially those that are spoiled and fermented. Garbage, feces, animal carcasses, bread, cakes, steamed bread, clothes, books, fur, Chinese herbal medicines, soap, from clothes to garbage, and even the paste on books are all cockroaches' food. Water is also essential for cockroaches.

References:

Baidu encyclopedia-cockroach