Black discolouration on leaves of P. japonica
Moderator: needmore
Black discolouration on leaves of P. japonica
Could anybody tell me what this is, what causes it, and if I need to take any action. I would describe it as a black fungus, but I saw no aphids on the leaves. The plant was planted last year as a small division, in a raised bed, and has been dwarfed, somewhat unexpectedly, by the vigourous new growth of the adjacent plant. Therefore, could it be stress-related, as you sometimes see with conjested shrubs? Thanks in advance!
Boohoo?
-
- Posts: 93
- Joined: Tue Sep 26, 2006 8:51 am
- Location info: 0
- Bamboo Society Membership: ABS - America
- Location: SE UK 400ft Zone 8/7 Low usually 28F, -4C (-10, -12, -14, -1, -6C last 5); High 99F, 37C in 2019
- Contact:
Re: Black discolouration on leaves of P. japonica
Can you wash it off with a wet cloth?
Chris
SE England
bamboo-identification.co.uk
Think globally, act locally
SE England
bamboo-identification.co.uk
Think globally, act locally
Re: Black discolouration on leaves of P. japonica
Oops! I just brought a leaf into the house with the intention of wiping it with a cloth and found the underside crawling with aphids!iain wrote:but I saw no aphids on the leaves.
Thanks for your response, Chris, and for your website, which has the most detailed descriptions. http://bamboo-identification.co.uk/html ... tml#aphids
Boohoo?