樹都要打吊針，吾知大家有於無看過？
我就第一次見，攝於上海浦東的東郊賓館，當日去看鳥的。聽講老江的府第也在這賓館的一號樓。

我們行近D,馬上撲出個很好禮貌的保安員出來叫我們不要亂走。可能老江過日不在上海歎茶，不然可能馬上趕走連相都沒得影

嘩，第一次見，
有咩用架？

聽過植物護理員說是打補藥

要把老江府第前面的樹養得肥肥的，清清綠綠

向大陸, 人有乜頭暈熱睇醫生,
個個醫生係咪都打咗吊針先,
估唔到樹都係噉。

当时拍这照片的时侯最吸引我的是那棵树上绑的草绳,真系好似个绑左蹦带的重病号

This is "injection", one of a way of tree management. Yes, it is not good visually but still a method to put systemtic fungide, pesticide, fertilizer or growth hormone if the tree showed any symptom of nutrient deficient.
There are still many different ways to carry out the injection, like this:

http://www.arborjet.com/videos/index.htm

Oh, however, wraping a tree is not a good way to keep trunk moisture and temperature. It should only be use is the temperature range within a day in great different. Otherwise, it will only increase the chance of disease and insect problem with warmer and higher moisture environment.

I asked the gardener when I saw that. He also told me that the wrapping was for keeping moisture of the tree. interestingly, the daily range of  temperature on that day (2008-June-12) in Shanghai was about 20C (low) to 27C (high). Not much of a variation within a day.
Besides the tree that I took a picture of, I also came across other trees were undergoing similar treatment. Another gardener was holding a VERY BIG syringe in injecting some kind of drugs into other tree trunks close at the roots as well.
What a great and eye catching tour for me on that date.

http://www.shwbs.org/swb/read.php?tid=2008&page=e#a

Thanks a lot for the great info .. cheers from Jimmy

由此可見做園藝呢行o既有幾多錯誤觀念，有幾多水份會經樹皮流失？

Tree wrapping is one of the very common practices in China. Lucky that this practice hasn't been copied to HK....... In fact, their level on tree managemnt can be known from this photo.....

有時見o係大陸運樹落黎，係會先用草繩包住樹幹，防止樹幹擦傷。但種好樹之後仲吾拆，就係偷懶了。

最近在大陸去看鳥的地方很多時都是在一些林業公司的苗埔內，下次會留意再看清楚啦。