Answer:

Clover fish,

Also known as scissors worm, octopus, big fish, swallowtail worm and so on.

It is a primitive wingless insect, belonging to sauropods and Scorpionidae.

This kind of insect is not only a dry indoor moth, but also ubiquitous in libraries all over the country.

gingkgo

Carp (mullet)

Another name

Midges, mullets, whitefish, wallfishes, bookworms

door

arthropoda

summary

insecta

morphological character

Small to medium, no wings.

In the systematic evolution of Insecta, it is a truly wingless insect.

It is 4~20mm long, long and narrow, with flat back and abdomen, and often has many scales and hairs. Antennas are filiform, compound eyes are separated and chewed in the mouth. The upper jaw has two articular processes connected with the head. Abdominal segment 1 1, abdominal segment 7-9 has a pair of spikes and vesicles, abdominal segment 1 1 has 1 a pair of tail whiskers and middle tail filaments, which are long and multi-segmented, and the female ovipositor is developed.

Nymphs are similar in appearance to adults, but smaller in size.

Oval, 0.8 mm long, white.

Life history and habits

Generally, this insect has 1 generation every year, and it only takes 3 months for each generation under suitable temperature conditions.

Adults, eggs are scattered in the gaps between boards, books and documents. Each female lays 6~ 10 eggs. After 35~40 days of incubation, the hatched nymphs can feed. I like dark and damp, hiding in the cracks of my master during the day and coming out at night. Sexually lively and agile. You can see it all year round in a warm room. Inactive when the temperature is below 4℃. Adults have strong hunger tolerance and can survive for 300~3 19 days without food.

Breeding environment

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.

Eating habits

Carp has a wide range of recipes. Organic matter, photos, paper, paste, glue, cotton cloth, animal fur, silk fiber and human dander in grain, finished grain and indoor dust are all rich in protein, sugar and trace elements.

Carp can spread with the removal of utensils. Adults, larvae and eggs can spread to different places when bookcases, bookshelves and book boxes move. Clover fish can also spread with the borrowing of books, and sweater fish in books will go to classrooms, dormitories and families with books and become storage pests in these environments.

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) Pay attention to indoor environmental sanitation, clean up rotten and damp articles, and clean the surface that is not often exposed, thus reducing the spawning habitat and spawning number of long-haired fish and reducing 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.

Sprinkle some powdery pesticides around the doors and windows of the warehouse and the legs of the filing cabinet frame, 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.

You can put some insect repellent if necessary. There are many drugs on the market, which are mixed, so we should choose products from reliable manufacturers.

In short, the key to the prevention and control of sweater fish lies in prevention, eliminating hidden dangers and avoiding mending after it is too late.