Hello, this situation, according to your situation, should be caused by underarm odor. I suggest that this situation is best to go to the hospital for medical treatment.
Guiding opinions:
According to your situation, if the symptoms are mild, you should pay attention to personal hygiene, change clothes frequently, take a bath frequently, and don't eat spicy and irritating food. After that, you will return to normal after a period of time.
The needle began to change color and the resin secretion stopped. In addition to the trace of supplementary nutrition of Monochamus alternatus, spawning ditches can also be found.
(3) Most of the needles turned yellow and brown and wilted, showing the moth-eaten of Monochamus alternatus;
(4) All the needles turn yellow-brown to reddish-brown, and the whole diseased tree withers and dies. Prevention and control measures: artificially cut down dead trees to prevent the spread of the species or wood-borne longicorn beetles in epidemic areas, fumigate in bags to kill Monochamus alternatus, and control the longicorn beetles by using natural enemies such as swollen-legged bees.
The miracle of drought
A "distress signal" will be sent out during the drought.
Researchers at the University of Grenoble in France put dried pine fragments into hydrogels to simulate a living tree experiment, and have isolated ultrasonic waves, which are hundreds of times faster than human hearing. The researchers put the gel in an artificial drought environment and listened to the noise generated by bubble formation, which is similar to the situation that trees encounter drought.
Chief experimenter Philip? Marmottant said that although the laboratory experiment only got an approximate result, it helped us isolate the noise from trees. This is also the first time that hydrogels have been used for this purpose. He said: "We can track the clear noise, and we find that most of the noise is related to bubbles, and other reasons such as cracks or insects cannot be ruled out.
During drought, when trees try to absorb water from dry land, bubbles will form. When leaves collect carbon dioxide, they open pores, which makes them easy to lose water. A tree absorbs water from the ground with its roots and sends it up through a conduit. There are usually thousands of ducts in trees, which are connected with each other through the wall membrane. During drought, the tension of wooden conduit will increase, and then holes will be formed.
Douglas fir and pine trees have usually been repairing these injuries. If these bubbles block the transmission of water, it will be fatal to other kinds of trees. And it is expected to come out in the summer of 20 13.
Classification of pine varieties
Distributed species
Pine trees are very adaptable to the land environment. They can tolerate the low temperature of -60℃ or the high temperature of 50℃, can grow in bare mineral soil, sandy soil, volcanic ash, calcareous soil, limestone soil and various soils from calcareous soil to red soil, and are drought-tolerant, barren and sunny, so they are famous pioneer trees. China is one of the countries with the richest gymnosperms in the world. From the perspective of Pinaceae, it can be fully explained that China is a veritable "hometown of gymnosperms". In China's vast mountainous Yuan Ye, there are not only lush pine, larch, spruce and fir forests, but also many extremely precious and rare Pinaceae trees hidden in some deep mountains and forests. Among the first batch of rare and endangered plants under special state protection, there are 39 species of Pinaceae, accounting for110 of the total (389 species). Among them, Cryptomeria fortunei is listed as the first-class key protected plants, Abies baishanzu and Pinus yunnanensis 17 species are listed as the second-class key protected plants, and Taxodium mexicana and Pinus sylvestris var. mongolica/0 species are listed as the third-class key protected plants.