Japanese Black Pine White Fluff

Forum for discussion of Evergreen bonsai – Buxus, Cotoneaster, Olive etc.
Post Reply
peterk1278
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 7
Joined: May 13th, 2019, 5:45 pm
Favorite Species: Rosemary
Bonsai Age: 1
Bonsai Club: -
Location: Australia
Has thanked: 2 times
Been thanked: 1 time

Japanese Black Pine White Fluff

Post by peterk1278 »

Hi guys,
My Jbp has recently started growing white fluff at the base of its needles.
Is there any treatment I should use for it?

Image
Image
Marie Hewartson
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 68
Joined: March 9th, 2013, 2:14 pm
Favorite Species: Ficus
Bonsai Age: 20
Bonsai Club: BSQ, Redlands, Bimer
Location: Brisbane
Been thanked: 11 times

Re: Japanese Black Pine White Fluff

Post by Marie Hewartson »

Just come home from a demonstration on JBP by a major demonstrator, and this very bug was mentioned.
Get rid of it as it will kill eventually your tree.
Treatment was, Winter treatment Lime Sulphur diluted 20%, summer treatment diluted 10%.
Saturate the tree including the base 2 weeks apart.
Cheers Marie
shibui
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 6344
Joined: August 22nd, 2009, 8:41 pm
Favorite Species: trident maple
Bonsai Age: 33
Bonsai Club: Albury/Wodonga; BSV; Canberra; VNBC
Location: Yackandandah
Has thanked: 10 times
Been thanked: 508 times
Contact:

Re: Japanese Black Pine White Fluff

Post by shibui »

This is called pine bark adelgid. I think it is a type of aphid but can do serious damage to pines when the numbers are high. They are notoriously difficult to get rid of because they are protected under the cotton wool cloaks.
Quickest and most effective treatment is a systemic insecticide.
I have had some success with spraying metho.
I have not tried the lime sulphur treatment.
Hard to tell if you have been successful because the cotton wool stays long after the bugs are dead. Try squashing a few to see if there are any still alive under the coverings.
You may need to repeat treatments a few weeks later to catch any that hatch after the first spray.
http://shibuibonsai.com.au/" onclick="window.open(this.href);return false;
bonsaisensation
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 247
Joined: July 9th, 2010, 10:46 am
Favorite Species: pinus
Bonsai Age: 16
Bonsai Club: bonsai society of vic
Location: melbourne
Been thanked: 2 times
Contact:

Re: Japanese Black Pine White Fluff

Post by bonsaisensation »

My treatment is mixing 20 ml of white oil to one litre of water in a spray bottle. Turn the nozzle to jet, a few squirts will see the targeted area blasted clean. One treatment usually keeps the tree clean for the season.
I have heard of concerns about the use of white oil, but it works for me.


Tien
check out our new website:
http://bonsaisensation.com.au" onclick="window.open(this.href);return false;
tgward
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 360
Joined: June 15th, 2015, 6:23 pm
Bonsai Age: 31
Location: Winkie
Has thanked: 1 time
Been thanked: 13 times

Re: Japanese Black Pine White Fluff

Post by tgward »

is this the same as woolly aphid?-- I would try squirting them of , then using a spray when most are gone
Daluke
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 693
Joined: September 15th, 2014, 8:04 pm
Favorite Species: Juniper
Bonsai Age: 5
Location: Melbourne
Has thanked: 1 time
Been thanked: 15 times

Re: Japanese Black Pine White Fluff

Post by Daluke »

Get a high pressured hose and spray it off. Overside, underside, front and back.

Place into full sun.

I’ve had it when placed in a shaded area - the jet method every few days will get you on top of it.

My experience isn’t as damning as the others in this post.
shibui
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 6344
Joined: August 22nd, 2009, 8:41 pm
Favorite Species: trident maple
Bonsai Age: 33
Bonsai Club: Albury/Wodonga; BSV; Canberra; VNBC
Location: Yackandandah
Has thanked: 10 times
Been thanked: 508 times
Contact:

Re: Japanese Black Pine White Fluff

Post by shibui »

Pine bark adelgid is not woolly aphid. Both are sucking insects and both use the cotton wool protection racket and both are detrimental to the trees they live on but my experience is that adelgid is much more damaging.
http://shibuibonsai.com.au/" onclick="window.open(this.href);return false;
User avatar
Rolf
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 83
Joined: November 16th, 2011, 3:38 pm
Favorite Species: Pines, Junipers, Natives, Elms
Bonsai Age: 25
Bonsai Club: Bonsai Workshop Inc Perth WA
Location: Perth, WA
Has thanked: 2 times
Been thanked: 11 times

Re: Japanese Black Pine White Fluff

Post by Rolf »

Marie Hewartson wrote: September 5th, 2020, 5:13 pm Just come home from a demonstration on JBP by a major demonstrator, and this very bug was mentioned.
Get rid of it as it will kill eventually your tree.
Treatment was, Winter treatment Lime Sulphur diluted 20%, summer treatment diluted 10%.
Saturate the tree including the base 2 weeks apart.
Cheers Marie

Hi there,
I was wondering, will Lime Sulfur affect or kill the mycorrhiza in the soil/substrate of your JBP???? :o :lost:

Cheers
Rolf
Nature does always better! ;)
Post Reply

Return to “Evergreen”