Cerambycidae life history varies by species, some one year to complete a generation or two generations, some two to three years or even four to five years to complete one generation. In the same area,食料and the number of victims of the young and old and wet and dry extent affect the growth of larvae and the algebra. General to larvae or adults in the trunk of winter. After the emergence stage, and some need for a supplementary nutrition, feeding pollen, softwood, leaves, bark, sap or fruit, such as fungi, and some do not need nutritional supplements. Adult life in general more than 10 days to one to two months, but in winter the indoor pupae adults up to seven to eight months, the female than male life expectancy short. Adult activity small eyes and compound eyes of crude, is related to the general on the rough surface of the eye, and more activities in the evening, becoming light and small eyes of the small, more activities during the day. Adults lay eggs on the form of ways and mouth parts, the former general of the adult spawning population will be producing eggs directly into the rough bark or cracks; under the mouth of the adults in the trunk on the first bite into a groove, then eggs in Carved bed. Cerambycidae mainly larvae Zhushi, living the longest time, the most serious harm to the tree trunk. When the eggs hatch to larvae, the larvae that is beginning to stem borers, in the initial feeding under the bark until age increases, that is,钻入xylem damage, only some species remain in the bark of life, not borers into the xylem. Larvae in the trunk of activities, Zhu Shi tunnels with the length of the shape and type to another. Larvae in the trunk or branches on Zhushi, to a certain distance to the bark on the opening as Tongqi Kong, launched excrement and sawdust outside. After the larvae mature into a wide range of building pupae room, at both ends of the fibers and wood plug, and in which pupate. Pupal stage about 10 to more than 20 days.
Cerambycidae larvae Zhushi tree trunks and tree branches to affect the growth of trees so that Shushi debilitating, leading to invasive bacteria, but also susceptible to wind break. Seriously injured when the whole plant died, wood borers were, the value of the loss.
Cerambycidae woody plants is the major pest, the larvae Zhushi tree trunks, branches and roots. Damage is part of herbaceous plants, the larvae live in stems or roots, such as chrysanthemums Cerambycidae, melons and other vine Cerambycidae. Individual categories such as cotton Cerambycidae capsule, the capsule damage cotton. There are a few species, the larvae do not live in plant tissue, but feeding roots in the soil, such as the Daya song and teeth sawing Cerambycidae, grass Cerambycidae, and so on.
On the adult diet, know得不, but known to have fed on the pollen, tender bark, softwood, leaves, roots, the sap, fruit, fungi, and so different habits. Generally speaking, the categories often spend Cerambycidae pollen for food. Ditch the tibia Cerambycidae category Changshi harm tender bark, leaves and softwood. Subfamily of the other adults are feeding, there may not be part of feeding. In the same subfamily of the variance in the diet is also great.
Cerambycidae life cycle the length varies according to type, a year to complete a generation or two generations, there are two, three or even four or five years to complete a belt. The same type of life history in different geographical sometimes very different, such as Mr Dominic Wong Sang Cerambycidae in Jiangsu takes three years to complete a generation, while in Guangdong are two generations in a year. As the larvae of the hidden life into the life history of their observation is very difficult. Also because of the conditions of host plants such as young and old, healthy, and the extent of wet and dry, the larvae of the great impact of development. Adverse conditions often cause the larvae diapause而使greatly extend the life of generations to come. So the same - type in the same area may show different development process. There are many documents on the larvae of longevity in mind that these are mostly made of wood under the furniture, after several years, suddenly found to have larvae to survive the day, or Cerambycidae suddenly emerged and this proved it in the wood has been a lot of life Era. There are many such examples to prove that Cerambycidae larvae can live to 10 to 20 years and a maximum of two records are 40 and 45.
Cerambycidae general to wintering larvae or pupae to adult in the indoor winter, autumn and winter 2001 on the occasion of the emergence of adults, to stay indoors in the pupa only by the following year between spring and summer. The general adult life not long, 10 to a few days, 12 months, but in winter the indoor pupae adults may reach seven to eight months. Female than male life expectancy is shorter in general. Adult activities in the time between the various categories also vary, and some in the daytime sunlight, the most active is spent Cerambycidae; others at night or cloudy day, or night all activities.
There are two main ways to lay eggs, a female was first used in prenatal upper Yaopo bark (particularly the ditch tibia Cerambycidae), then insert the eggs, each spawning a hole, but also producing tablets The. This form of nesting hole, the size of its shape in various types of often different, and some very significant, in the prevention and treatment can be found on the egg out the instructions. Another way to lay eggs without first bite holes, but the direct use of eggs in cracks in the bark to lay eggs. In a few cases, also have branches in the middle part of the smooth. Habitat types of disabilities to lay eggs in the soil.
The newly hatched larvae in the first general Zhushi subcutaneous, or long or short period of time before some depth to the wood. In only a few types of skin Zhushi. Some types are deep Chuanzao not only in sapwood of the damage. Against many types of backbone or Cuzhi, some in the dry root, while others are in the branches Zhushi. When the larvae Zhushi Chuanzao various trenches, or up or down, or left or right, or bends or straight, with the types vary, but there are many types of trenches very rules. In the trenches often full of insects and feces of wood fiber. Sometimes insect pest soiled sawdust from the hole from the outside, and sometimes the victims out of sap. Aging larvae often built into a wide trenches as a pupa room, wood chips closed at both ends of the fibers, in which pupate.
Cerambycidae of the host range among the various categories are different, many species such as Anoplophora glabripennis, Sang Cerambycidae, Cerambycidae-spot, its broad diet, can be hurt by a variety of plants while others are limited to the same family or Are close to, such as the Daya song and teeth damage Cerambycidae saw grass plants, Zhang Hong Cerambycidae damage camphor trees and nanmu tree.
This absorbing vintage film explores the issue of cheating in school. John, a Student Council representative, is having trouble with algebra. He knows he has to maintain his good grades for his social status, so he gets his girlfriend Mary to allow him to copy from her answers on a test. Later, after he’s been caught, his fellow students come down on him hard, eventually punishing him by kicking him off the Student Council. What makes this film different from others of its ilk is the Film Noir quality that the film employs to heighten tension and fear. The characteristics of film noir are ever present. The beginning is quite dark and scary, with a young boy's loneliness, with many different close ups of a phone, faces, and disembodied voices. And of course, shadows and sharp angles are focused on with the stark black and white picture exploding off the screen. As this was part of the Discussion Problems in Group Living series, this film focuses not on what the adults do to John, but on what his peers think of his actions, and whether they will offer peer support or more peer pressure. This series of films was made specifically to stimulate discussion among young audiences who viewed it, instead of making rigid pronouncements about what is right or wrong. Cheating on tests in school is an ever growing issue and it's fascinating to see how cheating was perceived in the 1950's.