Cockroaches are also nicknamed Xiaoqiang and are famous for their tenacious vitality. It is one of the four pests, and its reproductive ability is very terrible. It is a very nuisance insect.

1. What are cockroaches afraid of

1. Cockroaches are more afraid of light, which is why cockroaches are generally not seen during the day or when there is light. During the day, cockroaches hide in dark and light-proof places, such as indoor furniture, cracks and corners in walls. At night, especially after people turn off the lights and fall asleep, cockroaches begin to come out in search of food. Cockroaches spend 75% of the 24 hours in a resting state. Because cockroaches are afraid of light and active at night, it is very difficult to capture cockroaches artificially. However, the German cockroaches (small cockroaches) currently appearing are not afraid of light, so you can usually see these small cockroaches crawling around during the day.

2. Cockroaches are afraid of cold. Generally, there are more cockroaches in spring and summer when the weather is warmer, but in winter when the weather is colder, there are fewer cockroaches. But why do cockroaches still appear in the cold winter in the north? Mainly because there are heating indoors in the north, the indoor temperature is relatively warm, and it is only cold outside. The reason why cockroaches are afraid of cold is mainly related to the temperature of the environment where cockroaches originally lived. Cockroaches that are used to living in warm environments will die when the temperature is lower than -4°C. This is because the toxic products accumulated in their bodies cannot be excreted. When the tissues are stripped and frozen, cockroaches die quickly.

3. Cockroaches are afraid of high temperatures. Generally, when the temperature around the stove is relatively high, there will be no cockroaches. And if the indoor temperature reaches 40°C in summer, cockroaches will die in about 4 hours. Because cockroaches speed up their metabolism, the result is an increase in oxygen demand. Over time, cockroaches dry out due to water loss. This is why cockroaches like to live around refrigerators, freezers and air conditioners during the hot summer months.

4. Cockroaches are afraid of plants containing toxic substances. Plants such as fresh peach leaves, dieffenbachia, crocus, willow, calendula, lily of the valley and other plants all contain toxic cardiac glycosides. Cockroaches are more likely to Cockroaches are afraid of these plants and will run away whenever they smell the smell of these plants. In addition to the above plants, cockroaches are also afraid of cucumbers and onions. Placing cucumbers and onions in places where cockroaches often hang out can also achieve the effect of driving away cockroaches.

2. How to get rid of cockroaches

The best way is to use drugs to control cockroaches. Now everyone uses the following drugs to get rid of cockroaches:

1. Poison Cockroach bait can be placed in places where cockroaches often hang out. Cockroaches will die if they eat it.

2 Cockroach paper has the same principle as fly paper. It is also placed in places where cockroaches often hang out. As long as one cockroach runs up, other cockroaches will follow.

3 Cockroach-killing sprays, such as insecticides, are also effective. It is best to use professional cockroach-killing sprays.

4 Magical Medicine Pen.

In addition to using drugs to eliminate cockroaches, the most important thing to pay attention to is to keep the home environment clean and not leave any sanitary dead spots for cockroaches to survive.