Allotment Gardening Advice Help Chat

Growing => General Gardening => Topic started by: LivvyW on July 26, 2010, 19:42

Title: who can answer this disease question? - description lacks detail!!
Post by: LivvyW on July 26, 2010, 19:42
Trying to answer a disease problem for my Mum.
 
She has this lovely tree/shrub, i don't think it flowers,but has lovely creamy white bracts that sit on top of the leaves. Very pretty.

On the bark it has  fungusy looking raised spots that are white with a brown head. They seem to be of 'marshmallowy' texture.

The shrub is in a rather shady spot.

I know that is a pathetic amount of information, but i trust this site for genius's and i'd love to answer my Mum's dilemma.

Any ideas?
Title: Re: who can answer this disease question? - description lacks detail!!
Post by: joyfull on July 26, 2010, 20:04
any chance of a photograph?
Title: Re: who can answer this disease question? - description lacks detail!!
Post by: fatcat1955 on July 27, 2010, 00:04
Could be a simple fungi infection or the dreaded honey fungus. Try getting more light/air to the area and have a little dig around the plant. If you find what looks like black bootlaces, then it has honey fungus.
Title: Re: who can answer this disease question? - description lacks detail!!
Post by: Goosegirl on July 27, 2010, 16:48
Sounds like a Cornus kousa or similar plant. Has it just developed this or not? Does it still look healthy - if so, then don't worry too much. Pix would be good.
Title: Re: who can answer this disease question? - description lacks detail!!
Post by: SG6 on July 27, 2010, 19:54
How big are the fungusy looking raised spots?
If small as in 4-5mm wondering if they could be wooly aphids,
Get them at times on an acer I have.

If a fungus then may be best to spray and help the shrub fight off the infection, sounds as if you don't want the shrub to die so help it a bit.
Title: Re: who can answer this disease question? - description lacks detail!!
Post by: sunshineband on July 27, 2010, 20:02
Actually I am wondering if they are those huge scale insects which infest some barks, such as acers. They do pile up and look kind of fungusy.  :tongue2:

You could try squashing the 'growth' and see what happens. :unsure: :unsure:

{The wash hands of course}
Title: Re: who can answer this disease question? - description lacks detail!!
Post by: SG6 on July 27, 2010, 20:18
Thanks, I meant scale insects. As I was typing there was this nagging feeling that I had the wrong name, just couldn't think of anything more correct. :blush: :blush: :blush:

Reminder, plug in the fully charged brain next time.  ??? ??? ???
Title: Re: who can answer this disease question? - description lacks detail!!
Post by: sunshineband on July 27, 2010, 20:54
I believe provado ultimate bug killer is recommended to deal with these.

I don't use it myself but squash the lovelies and wipe the trunk/branches with diluted washing up liquid to clear away any residue, and leave everything clean and fresh again.  :) :) :)

Title: Re: who can answer this disease question? - description lacks detail!!
Post by: Lottiegob on July 31, 2010, 07:52
Guessing - could be pieris or prunus? or skimmia?? could be powdery mildew.
Title: Re: who can answer this disease question? - description lacks detail!!
Post by: HilaryG on July 31, 2010, 21:39
This is my Cornus 'Eddie's White Wonder'. A lovely tree but it's covered in white furry blobs...maybe scale or mealy bug? Doesn't seem to harm it. I have an ordinary dogwood near it which is also covered, must be the family. Does it sound the same?
Title: Re: who can answer this disease question? - description lacks detail!!
Post by: Yorkie on July 31, 2010, 22:48
Pretty sure that's not scale.

Could be either woolly aphid or mealy bug (my ID skills aren't good enough to know the two apart)
Title: Re: who can answer this disease question? - description lacks detail!!
Post by: sunshineband on July 31, 2010, 22:55
Those are mealy bugs  ;)

The original question though related to what I thought could be woolly aphid: LINK (http://www.google.co.uk/imgres?imgurl=http://www.dgsgardening.btinternet.co.uk/aphid_woolly1.jpg&imgrefurl=http://www.dgsgardening.btinternet.co.uk/woollyaphid.htm&h=544&w=778&sz=60&tbnid=OTM8ERmGd35q2M:&tbnh=99&tbnw=142&prev=/images%3Fq%3Dwoolly%2Baphid&usg=__BW0sog35PML1b9XZBWRphnyAIiA=&sa=X&ei=YJxUTIjLIZq60gSU5MnwAg&ved=0CCUQ9QEwAw)