Natural enemies of cockroaches?
Common cockroach
Cockroaches belong to the order Cockroaches of Insecta. In this project, there are about 4,000 different species of cockroaches belonging to 7 families. They have lived for about 400 million years now, and they can definitely be called "cockroaches". Although cockroaches are hateful, only a few dozen of the 4,000 species of cockroaches will appear in human homes, and most of them are distributed in the wild. They play the role of decomposers in nature.
However, it is these dozens of cockroaches that disturb the people. There are about 10 species of cockroaches living indoors in China, and the most common one is Blattella germanica. Although Blattella germanica has a country name in its name, its origin is not in Germany, but in northern Africa (some scientists think it originated in Southeast Asia). At present, they have appeared in places with human activities all over the world and become the most harmful cockroaches.
Although the average body length of Blattella germanica is only 1.5 cm, it has strong viability, vitality and reproductive ability. The first is viability. Blattella germanica has little to eat. From our regular food to the "garbage" on the inner wall of the sewer, it is their "food". The second is vitality. Blattella germanica can live for 3-7 days without eating or drinking even if its head is removed. Finally, there is the most troublesome reproductive ability. The life span of a female Blattella germanica is usually about 200-300 days. In these 300 days, it takes them about 1.5-2 months from egg to adult. As adults, they can reproduce. From the beginning of reproduction to death, a female Blattella germanica can give birth to 10-30. In other words, a cockroach can leave at least 100-300 offspring, or even thousands, and these offspring will continue to breed for about 2 months, so that their number will increase geometrically. This is also the main reason why cockroaches are difficult to eradicate once they appear at home.
Natural enemies of cockroaches
As we said at the beginning, there are many natural enemies in animals with strong reproductive ability, such as cockroaches. As a small insect, the common natural enemies of cockroaches are spiders, mantis, birds, scorpions, frogs, toads, thin-waist bees and so on. Even mice, one of the four pests, eat cockroaches. This shows that there are indeed many natural enemies of cockroaches. But in the home environment, these natural enemies can't play a role, because mantis, bird, frog and toad are difficult to keep indoors, and scorpions and thin-waist bees are poisonous and will sting people, let alone mice, and people can't kill them, let alone cockroaches. So, in this way, these natural enemies of cockroaches are useless at home.
What animal can reduce cockroaches?
From the point of view of domestication, it is a good way to raise spiders to kill cockroaches, especially the white-fronted poisonous spider, also known as the white-fronted spider. Come and recommend it? There are three reasons:
First of all, the white-fronted poisonous spider is a predatory spider. They can't weave nets, so they won't make their homes "silk holes".
Secondly, the white-fronted poisonous spider is a carnivorous spider, its main prey is cockroaches, and it also likes to live in a humid home, which coincides with the home conditions in southern China.
Third, although the white-fronted poisonous spider is a poisonous spider, its toxicity is the weakest among spiders, and people will only feel slight pain after being bitten. The most important thing is that this kind of spider is afraid of people and runs away when it sees people, so it does almost no harm to people.
Of course, many friends have an instinctive fear of spiders, so they will flinch. Therefore, we still have a plan, which is to raise cats. Cats are one of our most common pets. Their initial diet included insects. In addition, cats at home can't release their desire to hunt, so they are curious about all the creatures at home, which makes cats kill cockroaches at home. Moreover, cats like to lie down during the day and go out at night, which is similar to the habit of cockroaches. Therefore, if you want to reduce the number of cockroaches in your home (note that it is reduced, not disappeared), keeping a cat is a good choice.
If you are afraid of spiders and don't want to have a cat, you can only reduce cockroaches from your living environment. If you want to reduce cockroaches from this angle, you must first understand the habits of cockroaches. Cockroaches like to live in warm and humid places, which is difficult to improve in southern China, because it is related to climate and environment. However, although cockroaches are not picky eaters, it doesn't mean they don't have to eat. We can start with cockroach food. First, reduce the food left outside and put the leftover food in the refrigerator. After solving most of the food problems, we came to the kitchen and bathroom. In order to reduce them, we need to clean these two rooms completely. Kitchen oil stains and cooking leftovers should be handled in time, and the bathroom should be cleaned frequently. The most important thing is to change a floor drain. Because many cockroaches climb up from other residents' homes through sewers, changing an odor-resistant floor drain (generally with good sealing) can effectively reduce cockroaches. By the way, there are some kitchen utensils in the kitchen, such as the inside of the rice cooker, which should be dismantled as much as possible (I know this very well). This can minimize the number of cockroaches.
abstract
Although there are many natural enemies of cockroaches, few are suitable for keeping at home. Among them, friends who are not afraid of spiders, such as the white-fronted cancer spider, are a good choice, because they are afraid of people, go out at night, don't make webs, and mainly eat cockroaches. If you are afraid of spiders, keeping a cat is also a good choice, but keeping a cat for a long time will easily lead to cats just playing with cockroaches when they are bored.
If you don't raise anything and don't want to use medicine, you can only spend time improving your living environment, especially controlling food and sewers.