This little flatworm appeared at home. What kind of bug is it? Climb up the wall. How to avoid it?

Clover fish, also known as scissors fish, carp, whitebait, anchovy and so on. , a primitive wingless insect, belongs to trilobite family, with small to medium size and wingless. In the systematic evolution of Insecta, it is a truly wingless insect.

The breeding grounds of clothing fish are bookcases, bookshelves, book bundles, floor seams and gaps between old books. Carp has negative phototaxis, so it often hides in the dark and comes out at night. Carp is sensitive to temperature and humidity. The suitable environmental temperature for carp breeding is 65438 06℃ ~ 30℃, and the relative humidity is 75% ~ 95%. When the temperature and humidity are not suitable for the breeding of sweater fish, clothing fish will migrate to an environment with suitable temperature and humidity.

Prevention and control:

Because of its omnivorous diet, many hidden places and fast action, it is difficult to prevent and control sweater fish. We should mainly focus on the following points:

(1) Take good care of the environmental sanitation inside and outside the warehouse, clean up rotten and damp articles, and clean the surface that is not often exposed, so as to reduce the spawning habitat and spawning number of long-haired fish and reduce the number of insect mouths.

(2) Control the temperature and humidity in the warehouse. The suitable temperature for the development of long-haired fish is 22 ~ 28℃ and the humidity is 75 ~ 95%. Therefore, it is best to avoid the optimum temperature and humidity for the development of hairy fish in the warehouse.

(3) Sprinkle some powdery pesticides around the doors and windows of the warehouse and around the legs of the filing cabinet, such as: Baichongling, etc. Liquid pesticides can also be used. This can cut off the activity and storage route of woolly fish and reduce its damage area and scope.

(4) If necessary, you can put some insect repellent. There are many drugs on the market, which are mixed, so we should choose products from reliable manufacturers.

(5) When large-scale hazards occur, in addition to the disinfection of files, empty warehouses should be disinfected, which can be operated by experienced professionals.

Extended data:

Pest management measures:

"Pest management" is a concept put forward in the second half of last century. The specific measures to control book pests are to rationally adjust daily management, reform traditional practices, and create an ecological environment that is not conducive to the breeding, development, spread and rampant of pests, so as to achieve the purpose of preventing pests.

Most libraries with a certain scale and a long history will have some precious books that need to be properly preserved. The usual practice is to put them in a relatively sealed bookcase, put some mothballs and moisture absorbent in the cupboard, and open the cupboard door as little as possible, so as to ensure that these books will not be moldy or moth-eaten for a long time.

The mothballs in the cupboard are a little learned. Mothballs can be divided into natural mothballs and synthetic mothballs. Natural mothballs are organic compounds with fragrant and cool smell extracted from camphor tree branches and leaves, while synthetic mothballs contain naphthalene or p-dichlorobenzene, which is cheap and has a strong smell of coal tar, which is harmful to human health and will make paper brittle after long-term use.

Both natural mothballs and synthetic mothballs use volatile gases to kill insects or repel insects, and the effect is similar. The specific gravity of the gas volatilized from the mothballs is slightly larger than that of air, so it will deposit downwards in the cabinet, so it is best to put the mothballs in the upper part of the cabinet.

Mothballs can also be regarded as fumigants. High concentration of camphor gas can kill some insects, but for the lively and active clothing fish, low concentration will leave, there is no chance to kill, only to reflect the insect repellent effect. Mothballs become smaller and smaller with volatilization until they disappear, so it is necessary to add mothballs every once in a while.

The place where pests are easy to breed and gather in large numbers is called the insect source base. Eliminating insect source base is one of the important management measures to prevent various pests, and preventing clothing fish in the warehouse is no exception.

With the popularization of computer integrated management technology, most libraries no longer use cards to retrieve books. Many libraries don't know enough that abandoned card cabinets may become the insect source base of clothing fish, and they don't deal with cards in time. They leave the card cabinets with cards idle near the stacks without isolation measures, or even put them in a corner of the stacks.

The thick paper of the card is more attractive to the clothing fish, and the gap between the cards is loose, which is convenient for the clothing fish to inhabit and pass through. In addition, the card has been abandoned and stood still for a long time, the card cabinet has been closed for a long time, and the cabinet has been dark for a long time, which will inevitably become a place for clothing fish to concentrate on feeding, spawning and wintering. With the development of library management technology, retrieval cards are useless and should be disposed of as waste paper.

If necessary, it should be stored in isolation, fumigated regularly or placed with mothballs to repel insects. Old newspapers are also easy to become the insect source base of clothing fish, and they should also be stored in isolation, fumigated regularly or placed with mothballs to repel insects.

Baidu Encyclopedia-Yuyi