Today I used pesticides in my factory dormitory, what should I do

You can go buy that air freshener.

This should be the tobacco nail of the family Stealaceae, similar to the medicinal beetle. There is a slight difference in the proportions of the two bodies. It's harmless, so don't worry too much.

Tobacco beetle: Adult body ovate, about 3 mm long, reddish-yellow to reddish-brown. The firstborn is below the anterior thorax and cannot be seen on the back. The dorsal plate of the prothorax is highly convex and rounded. Compound eyes are large and black. antennae 11-segmented, serrate. The notches on the elytra are not conspicuous and are not arranged in longitudinal rows.

Herb A: The body is oblong, about 3 mm long, reddish-brown to dark maroon. The firstborn is below the anterior thorax and cannot be seen on the back. The dorsal plate of the anterior thorax is high and convex, cap-shaped.

Compound eyes are large and dark-brown. Antennae 11-segmented, terminal 3 flattened, triangular. The notches on the elytra are distinct and arranged in longitudinal rows.

The larvae of tobacco and medicinal herbs will feed on stored tea, tobacco, medicinal herbs, grains, oil crops, etc., and it is necessary to check whether these things have been eaten. Sometimes the cluttered environment can also breed these small bugs, and it is necessary to maintain environmental hygiene. If the source of the insect is not found, relying only on pesticides will not be very effective.

According to the analysis of my dormitory, this one seems to be a cockroach. Because we used to have a lot of computers and thermos in our dormitory, I could see them on my quilt in the morning.

At that time, we were there because of the humidity and too much garbage in the summer.

This thing reproduces quickly and is not easy to remove. And the dormitory next door, and even the whole building, will soon be available.

At that time, our school cleaned up all dormitories together, sprayed radar cockroach spray, and temporarily killed those who could see it. Then place the cockroach exterminator in all corners. After 3-6 months of repeating this, these pesky bugs were finally removed.

Also, our school is in the north, which is not so humid and easy to remove. In the south, it will be difficult to get rooted. Keep it dry, pay attention to hygiene, and release medicine all year round.

3. Take all the trouble to see what kind of bug this is, there are a lot of them in the dormitory, and it is useless to spray insecticides?

Looks like some kind of fly.

than if flies, it is not excluded that there are other possibilities.

For example, flea flies. Horse flies, Fluttershy flies.

or a gnat, commonly known as a moth fly. They are microscopic, hairy or scaly dipteran insects, including blood-sucking sandflies and indoor gnats and other important health pests. The larvae mostly live in the habitats of aquatic organisms (often places with low oxygen content), including bathtubs, wash basins, etc., and are common nuisance pests in bathrooms.

It is recommended to clean up the garbage in time, ensure that the room is clean, dry and ventilated, pay attention to the table and do not have residual fruits, etc

Hello, do you have orchards around?

This one looks like a fruit fly.

Hello, this ** is a bit vague, but it looks like it should be a fruit fly.

It is not so clear to see, a bug that is a bit like a different kind of fly, it may be a kind of earth bee, and it also stings, it is better not to mess with it.