Tianniu is a plant-eating insect that harms woody plants, most of which are pines, cypresses, willows, elms, walnuts, citrus, apples, peaches and teas, which are the main pests in forestry production, crop cultivation and construction wood. So how much can a Tianniu sell? What do you like to eat? Is it toxic?
How much does Tianniu cost for a catty?
The price of Tianniu is also high and low, different places, its price is also different, if you want to know the specific price, you can go to the nearby pharmacy to understand.
Regarding the feeding habits of adult insects, it is known to have different habits such as eating pollen, young bark, young branches, leaves, roots, sap, fruits, and fungi. Generally speaking, the flower cattle often feed on pollen. The gully-tipped cattle often eat young bark, young branches and leaves. Adults of other subfamilys also feed, and some may not. There is also significant variation in the ingestive nature within the same subfamily.
What does Tianniu like to eat?
The larvae of the celestial cow eat the trunk and branches, affecting the growth and development of the tree, weakening the tree, causing the invasion of pathogens and easily broken by the wind. When the damage is severe, the whole plant dies, the wood is mothed, and the process value is lost.
Is Tianniu poisonous?
Tianniu was originally not poisonous, but if it is bitten and bleeding, it is poisonous, and the blood on the wound is squeezed out immediately after being bitten, and then the wound is washed with soapy water, without going to the hospital, if the blood of the wound is not squeezed out in time after the Tianniu bite bleeding, the venom will spread to the whole body, and the symptoms of dizziness and nausea will occur severely.
Reproductive growth Edit
The length of The life history of Tianniu varies according to the type, with 1 or 2 generations completed in one year, and there are also 2, 3 or even 4 or 5 years to complete 1 generation. The life history of the same species in different regions is sometimes very different, such as the Yellow Star Mulberry Tianniu in Jiangsu, which takes three years to complete a generation, while in Guangdong, it takes two generations a year. Because of the hidden life of the larvae, it is difficult to observe their life history. And because of the conditions of the host plant, such as old and young, healthy, dry and wet, etc., it has a great impact on the long development of the larvae. Poor conditions often cause diapause of the larvae and prolong the life generations significantly. Therefore, the same-species may present different developmental processes within the same region. There are many records of longevity larvae in the literature, most of which are made of furniture based on wood, and after several years, it is suddenly found that there are still living celestial larvae in it, or the celestial bull suddenly feathers, which proves that it has lived in the wood for many years. There have been many such examples of celestial cattle larvae that can live up to one or two decades, and the highest two records are 40 and 45 years. Celestial bulls generally overwinter as larvae, or overwinter in the pupae chamber as adults, that is, adults that feather in the autumn and winter of the previous year, stay in the pupa chamber until the spring and summer of the following year. Adult insects generally do not have a long lifespan, from ten days to one or two months, but adults overwintering in the pupae may reach seven or eight months. Males generally have a shorter lifespan than females. The time of adult activity varies from species to species, with some active in daylight during the day, most actively in the celestial calf, and some at night or on cloudy days, or all night.
Egg laying methods: there are two main types, one is that the female worms use their upper jaws to bite through the bark (especially the groove shin tianniu) before giving birth, and then insert them with the spawning tubes, laying one egg per hole, and some produce multiple grains. The shape and size of the egg-laying hole thus formed often varies among various classes, and some are very significant, and can be used as an indication of the search for eggs in the prevention and control. Another way of laying eggs does not bite the hole first, but directly lays eggs in the bark crevices with the spawning tubes. In a few cases, there are also those produced in the smooth parts of the branches. Shiju species lay their eggs in the soil.
The hatching larvae generally feed on the subcutaneous moths, and after a long or short period of time, they penetrate deep into the woody part. A few species decay only subcutaneously. Some species are not chiseled deeply, and are only harmed in the sapwood part. Many species attack the base stem or thick branches, some in the root stem, and some in the branches. When the larvae decay, they penetrate various pits, either up or down, left or right, or bent or straight, depending on the species, but there are also many types of tunnels that are very irregular. The tunnels are often filled with insect droppings and fibrous wood chips. Sometimes worm droppings are excreted from the worm holes, and sometimes there is sap flowing out of the affected area. Mature larvae often form wide tunnels as pupa chambers, and the ends are closed with fibrous wood chips, in which they pupate.
The natural enemy of the Celestial Bull: the Swollen Leg Bee of guan
Prevention and control measures
Governance approach
The working people of China have long mastered the living habits of Tianniu in production practice, and have created a set of control methods such as searching for insect eggs, hooking and killing larvae, insect hole application, and killing adult insects. The "Sericulture Synopsis" published more than a hundred years ago on the part of the mulberry insect, a very physical instruction, is now copied as follows: "The insect is born in the bark of the mulberry tree, the name of the celestial cow worm. Its lower eggs, after a small fullness, will bite through the bark and hide their eggs in the skin. Its worms also, after the mango seed, are shaped like maggots, sucking resin paste. Approaching the summer solstice, gradually drilling holes, autumn and winter are as big as grubs, long and short, famous cockroaches, eating tree hearts, wearing wood like cones. Transformed into a heavenly buffalo, two horns like figure-eight, black, with white dots on the back, rim wood up and down, mouth with double tongs, its sharp as scissors, new hair strips, mesh folds. The cure: Where yellow water flows from the tree itself and on the branches, the skin of the tree must be broken, and there are eggs like grains of rice, and if they are broken, the insect will be extinct. If the child is an adult worm, it must find the worm hole (there must be moth chips outside the hole), stab the hole with a wire, or use the wire as a small hook to hook the worm out. If the worm has penetrated deeply, beyond the reach of the wire, it is irrigated with a hundred grass juices, and there is no one who is dead. Or use cooked tung oil into the hole, or use firecracker medicine thread to insert the worm hole, burn it with fire, and the worm will die when it smells the oil and gas and medicinal gas of the tung.
If it has become a heavenly buffalo, it will fly by the tree, but it is not far to soar, and it is advisable to catch it in a hurry. ”
This method of controlling mulberry insects shows the high intelligence and creative ability of the working people of China, and their set of methods can basically be used in the twenty-first century.
Since the 1980s, the research work on the prevention and control of Tianniu has progressed rapidly, made many achievements, and has begun to try some new ways.