After the beginning of autumn, don’t think that only mosquitoes become active. After this, it is most suitable for cockroaches to multiply and they are most active.
- Why are cockroaches more active after the beginning of autumn?
Like mosquitoes, cockroaches are afraid of both cold and heat, and their love of warmth and tide is their important habit. The temperature and humidity after the beginning of autumn are very suitable for the reproduction of cockroaches.
Cockroaches are the most abundant between July and September each year, during which time they reproduce most vigorously, and it is also the main season for cockroach eradication.
The optimum temperature for cockroach activity is 20-30°C. When the temperature is lower than 15℃, most of them do not move or move slightly; when the temperature is higher than 37℃, they are excited and die when the temperature exceeds 50℃. The seasonal fluctuations of cockroaches are greatly affected by temperature, and the same species of insects can show different seasonal distributions in different regions. In most areas of my country, cockroaches usually start to appear in April, peak from July to September, and gradually decrease after October until they disappear. When the temperature is lower than 12 ℃, they overwinter as adults, nymphs or eggs in dark, windless sheltered places.
The activity and reproduction of cockroaches, like other insects, is affected by temperature. Under normal circumstances, the seasonal fluctuation of cockroaches is the change in the number of populations or communities due to changes in temperature.
In addition, during this period, most areas have frequent rainfall and high humidity, which is also in line with the needs of cockroach reproduction. Therefore, after the Beginning of Autumn is the period when cockroaches are most active and begin to “succeed” on a large scale.
- In addition to being warm and trendy, what other characteristics do cockroaches have?
Hidden and afraid of light, nocturnal and nocturnal, is also an important habit of cockroaches. During the day, they are hidden in dark and dark places, such as indoor furniture, cracks in walls, caves and corners, and piles of debris. At night, especially after the lights are turned off and people are sleeping, they go out for activities, or forage for food, or to seek a mate. Therefore, in a 24-hour day, about 75% of the time cockroaches are in a resting state.
Cockroaches also have a gregarious habit. It can often be found on a habitat point, and there are always as few as a few, as many as dozens or hundreds of them gathered together, which is mainly due to the trapping effect of pheromone. Both adults and larvae of cockroaches secrete a “aggregation pheromone”, which is secreted by the rectal pad and excreted in the feces. In places where cockroaches live, it is common to see brown spots formed by their feces. The more feces, the more cockroaches gather.
It can be seen that in the control of cockroaches, it is an important measure to do a good job of hygiene and remove cockroaches.
Therefore, after the beginning of autumn, we must seize the opportunity to do a good job in eliminating cockroaches.
Post time: Aug-18-2022