桉树虫瘿

By Ouyang Yu


 这个还是桉树（尤加利），属于

Eucalyptus

你这张图比前一张更典型。

重点说叶子为什么变这样

那片红红鼓起、长着小“疙瘩”的叶子——
不是果子，也不是病变腐烂。

这是典型的：

👉 桉树虫瘿（gall）

是某种小昆虫（通常是瘿蜂或瘿蚜）在叶片里产卵，
植物被刺激后组织异常增生，形成这种“肿瘤状小球”。

你看到的红色小圆点，就是虫瘿结构。

会不会伤树？

说实话：

  • 少量 → 基本无影响

  • 很多很多 → 会影响叶片光合作用

但通常不需要处理。

这是澳洲桉树非常常见的现象。

再帮你确认几个特征

你这棵树：

  • 红色嫩枝

  • 细长镰刀形叶

  • 叶脉平行清晰

  • 叶子有点下垂

100%是桉树没跑。

说句实在的，你拍的这几张，全是很典型的澳洲绿化树种。
你最近是开始观察周围植物了吗？挺好的习惯。

如果你愿意，我可以教你一个“快速判断虫瘿和果实区别”的方法，以后不会再搞混。

Comments

Post a Comment

Popular posts from this blog

002, from Poetry Remarks

By Ouyang Yu
Image
Mel C. Thompson Publishing, San Francisco, 2013, p. 23. [I said 'no page number' because my lower ear mark concealed it, my apologies. Then I thought: What a fantastic idea if there's no page numbers! I have a book that has no Contents although it timidly carries page numbers. See Two Hearts, Two Tongues and Rain-coloured Eyes . Wild Peony, 2002. In future, I'd make a poetry book with no Contents and no page numbers. Why make things so easy for people that they won't even bother reading?] This book is long out of print, so don't start thinking that I'm trying to promote something. I've only got one copy in the world and I'm not selling it.
Read more

LOWER DOWNS, RUBBISH AND LOW POETRY by Ouyang Yu

By Ouyang Yu
Beauty is so far from being the dominant principle of modern poetry that many of the most splendid modern works are clearly portrayals of ugliness - Friedrich Schlegel ( On the Study of Greek Poetry , 1797) Contemporary Chinese poetry has unashamedly turned from the sublime and sacred to the vulgar and profane. In April 1999 at the Panfeng Conference in Pinggu County, Beijing, poets split into two camps, the  zhishi fenzi  (intellectual) and the  minjian . 1  The poets in the intellectual camp (Wang Jiaxin, Ouyang Jianghe, Xi Chuan, Zang Di and others) were mostly well-published, anthologised, critically acclaimed, well-travelled and internationally well-connected. As university professor and poetry critic Cheng Guangwei noted, much of their poetry reflects the influences of Western literary masters such as Yeats, Rilke, Lowell, Pound, Baudelaire, Milosz, Pasternak and Brodsky. 2  The  minjian camp (Yu Jian, Yi Sha, Xu Jiang and others) critiqued these infl...
Read more

Self Publishing, a poem by Ouyang Yu

By Ouyang Yu
In a way, everything is self publishing. When you open your mouth to talk, you are self publishing because you don’t want someone else to speak for you even if he or she were the speech writer for Howard or Bush or Mao Zedong. When the rain decides to fall it is self publishing, on a regional scale, sometimes on a statewide scale. You can’t dismiss it as unworthily self publishing because it doesn’t fall on a national scale or international scale. Rivers in the world are self publishing on a daily and nightly basis. Even a little creek is self publishing when it winds its way through an industrial zone clogged with toxicity and waste. Birds never remain quiet because they don’t get paid for calling, their ways of self publishing that never is actually recorded in human history, not even in birds’ history, and when sometimes it does get recorded as in relaxation music they still don’t get paid and they still keep singing, their ways of self publishing. Some great self publish...
Read more