slug
A mollusk with a degenerated shell in Gastropoda. The shell can degenerate into a layered structure, a row of particles, or disappear completely. Some endanger the garden. Lung slugs, commonly known as slugs, are soft and sticky and live in humid places (only one species is known to freshwater producers). Common species in temperate regions of Ayong, such as Syrphidae, Hydridae, fungi and decaying leaves. The Veronicellidae, which feeds on plants, lives in the tropics. Carnivorous slugs that eat other snails and earthworms include snails in Europe. The marine gastropods of the subclass Postbranchiae are sometimes called sea slugs.
Dangerous characteristics
Bringing the leaves of herbivorous grapes into holes, or non-staple grape fruits, affects the value of goods. It is a harmful animal with a complicated diet and a large appetite.
Somatotype characteristics
Like a snail without a shell, the adult is 30 ~ 60 mm long and 4 ~ 6 mm wide when it is straight. The inner shell is 4 mm long and 2.3 mm wide. Long spindle-shaped, soft and smooth, with no shell, and the body surface is dark black, dark gray, yellowish white or grayish red. Two pairs of antennae, dark and black, and the next pair is short, about 1mm, which is called anterior antennae and has sensory function; The upper pair is about 4mm long and is called the rear antenna, with eyes at the end. There are horny teeth in the mouth and the mantle at the front end of the back of the tongue, which is 1/3 in length and the edge is rolled up. There is a degenerated shell (that is, a shield plate) inside, and there are obvious concentric lines, that is, growth lines. The center of concentric circles is on the right side of the back end of mantle. The breathing hole is in front of the right side of the body, and there are small colored lines around it. Sakaki is outspoken. Mucus is colorless. About 2mm behind the right antenna is the genital foramen. Oval, tough and elastic, 2 ~ 2.5 mm in diameter. The white and transparent egg nucleus can be seen, and the color changes dark when hatching. The newly hatched larvae are 2 ~ 2.5 mm long, light brown and the same size as adults.
Living habits
Overwintering as adults or larvae under the wet soil of crop roots. From May to July, a lot of outdoor activities are harmful. In summer, the temperature rises and the activity weakens. In autumn, after the climate is cool, activities are harmful. It takes about 250 days to complete the first generation, spawning from May to July, and the egg period is 16 ~ 17 days, and it takes about 55 days from hatching to adult sexual maturity. The spawning period of adults can be as long as 160 days. Wild slugs are hermaphroditic, cross-fertilized, and can also be fertilized in the same body. Laying eggs in hidden soil crevices with high humidity, once every 1 ~ 2 days, about 1 ~ 32 eggs, and laying eggs at each place is about 10, with an average of more than 400 eggs. Wild slugs are afraid of light and die in strong light for 2-3 hours, so they all move at night, starting in the evening and reaching the peak at 10- 1 1 in the evening, and sneaking into the soil or hiding place one after another before dawn. Strong hunger tolerance, unable to eat without food or under bad conditions. Dark and humid environment is easy to happen. When the air temperature is11.5 ~18.5℃ and the soil moisture content is 20 ~ 30%, it is most beneficial to its growth and development.
Growth and reproduction
2-6 generations a year. Androgyny, cross fertilization or hermaphroditism, spawning amount is more than 400, eggs are piled in wet soil, the egg stage is 10- 17 days, and the larval stage is 55 days. It is very harmful to occur in spring and autumn. April-June is the worst, and May-July is the worst in the Yangtze River basin. Wild slugs move at night and lurk during the day, and their hunger tolerance can reach 130 days or more. Moreover, this insect is a pest that harms crops, especially wheat seedlings, and it costs an average of $30 million a year to destroy them abroad.
Application value
Medicinal value
In addition, slugs also have medicinal value:
Explain the names of Li Ling, snail, embryo-supporting worm, slug and snail.
The smell is salty, cold and non-toxic.
chemical composition
Glutamate content in meat is high (12.693μg∕mg) and glycine content is low (4.933 μ g ∕ mg). They all contain a specific lectin, sialic acid [2].
Functional indication
Clearing away heat and expelling wind, reducing swelling and detoxifying, breaking phlegm and dredging channels. It can be used for treating apoplexy, muscle spasm, epilepsy, wheezing, laryngitis, sore throat, carbuncle, erysipelas, amenorrhea, abdominal mass and centipede bite. Growth and reproduction
2-6 generations a year. Androgyny, cross fertilization or hermaphroditism, spawning amount is more than 400, eggs are piled in wet soil, the egg stage is 10- 17 days, and the larval stage is 55 days. It is very harmful to occur in spring and autumn. April-June is the worst, and May-July is the worst in the Yangtze River basin. Wild slugs move at night and lurk during the day, and their hunger tolerance can reach 130 days or more. Moreover, this insect is a pest that harms crops, especially wheat seedlings, and it costs an average of $30 million a year to destroy them abroad.
Application value
Medicinal value
In addition, slugs also have medicinal value:
Explain the names of Li Ling, snail, embryo-supporting worm, slug and snail.
The smell is salty, cold and non-toxic.
chemical composition
Glutamate content in meat is high (12.693μg∕mg) and glycine content is low (4.933 μ g ∕ mg). They all contain a specific lectin, sialic acid [2].
Functional indication
Clearing away heat and expelling wind, reducing swelling and detoxifying, breaking phlegm and dredging channels. It can be used for treating apoplexy, muscle spasm, epilepsy, wheezing, laryngitis, sore throat, carbuncle, erysipelas, amenorrhea, abdominal mass and centipede bite.