Brown Tips on Juniper Chinesis

We have some unique pests to deal with in Australia. Post your experiences and treatments here for others to learn from.
User avatar
kcpoole
Perpetual Learner
Perpetual Learner
Posts: 12289
Joined: November 12th, 2008, 4:02 pm
Favorite Species: Maple
Bonsai Age: 15
Bonsai Club: the School Of Bonsai
Location: Western Sydney, NSW, Australia
Has thanked: 18 times
Been thanked: 94 times
Contact:

Brown Tips on Juniper Chinesis

Post by kcpoole »

Hi All
One of my Seargeant Juniper ( my shohin comp tree) has develpoed brown tips to much of the foliage. Some are nice new bright green, but others are brown :x
Has anyone seen this and maybe know what the cause?

Not Mites ( tapped aver paper and no signs of them, no Bugs or other horribles that i can see.
foliage has not been cut

Only happening to one tree, the one on the bench next to it is fine :lost:

Ken
You do not have the required permissions to view the files attached to this post.
Check out our Wiki for awesome bonsai information www.ausbonsai.com.au/wiki
What is Bonsai? http://www.ausbonsai.com.au/wiki/index.php?title=Bonsai
What should I do now? http://www.ausbonsai.com.au/wiki/index.php?title=Newbie
How do I grow a Bonsai? http://www.ausbonsai.com.au/wiki/index. ... _a_Bonsai?
Visit a Bonsai nursery to see some real nice trees http://www.ausbonsai.com.au/wiki/index. ... _Nurseries
User avatar
Brian
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 629
Joined: July 16th, 2011, 3:13 pm
Favorite Species: Radiata pine
Bonsai Age: 31
Bonsai Club: AusBonsai
Location: Inner Melbourne Australia

Re: Brown Tips on Juniper Chinesis

Post by Brian »

I had a similar thing happen to mine and discovered it was snail damage. Are there any shiny snail tracks on the foliage ?
User avatar
kcpoole
Perpetual Learner
Perpetual Learner
Posts: 12289
Joined: November 12th, 2008, 4:02 pm
Favorite Species: Maple
Bonsai Age: 15
Bonsai Club: the School Of Bonsai
Location: Western Sydney, NSW, Australia
Has thanked: 18 times
Been thanked: 94 times
Contact:

Re: Brown Tips on Juniper Chinesis

Post by kcpoole »

Brian wrote:I had a similar thing happen to mine and discovered it was snail damage. Are there any shiny snail tracks on the foliage ?
Nope. I have not seen any snails here for ages. There are Blue toung lizards around that fix them :-) :lol:

Kne
Check out our Wiki for awesome bonsai information www.ausbonsai.com.au/wiki
What is Bonsai? http://www.ausbonsai.com.au/wiki/index.php?title=Bonsai
What should I do now? http://www.ausbonsai.com.au/wiki/index.php?title=Newbie
How do I grow a Bonsai? http://www.ausbonsai.com.au/wiki/index. ... _a_Bonsai?
Visit a Bonsai nursery to see some real nice trees http://www.ausbonsai.com.au/wiki/index. ... _Nurseries
shibui
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 7884
Joined: August 22nd, 2009, 8:41 pm
Favorite Species: trident maple
Bonsai Age: 41
Bonsai Club: Albury/Wodonga; BSV; Canberra; VNBC
Location: Yackandandah
Has thanked: 78 times
Been thanked: 1598 times
Contact:

Re: Brown Tips on Juniper Chinesis

Post by shibui »

Looks like flowers to me KC.
Being a conifer it has male flowers and separate female cones (berries). This looks like male flowers so no problem.
http://shibuibonsai.com.au/" onclick="window.open(this.href);return false;
PeterH
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 896
Joined: December 20th, 2008, 3:12 pm
Favorite Species: Next project
Has thanked: 59 times
Been thanked: 177 times

Re: Brown Tips on Juniper Chinesis

Post by PeterH »

Could be Juniper blight.
matlea
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 573
Joined: July 24th, 2011, 4:15 pm
Bonsai Age: 0
Location: sydney
Been thanked: 47 times

Re: Brown Tips on Juniper Chinesis

Post by matlea »

Too much water?
User avatar
dansai
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 1290
Joined: May 17th, 2010, 5:33 pm
Favorite Species: Aussie Natives
Bonsai Age: 5
Bonsai Club: Coffs Harbour
Location: Mid North Coast, NSW, Australia
Has thanked: 4 times
Been thanked: 140 times

Re: Brown Tips on Juniper Chinesis

Post by dansai »

Here's an image of Juniper chinensis flowers. Hopefully Ken that's all it is.

https://encrypted-tbn3.gstatic.com/imag ... Hng9orJANQ
Travelling the Mid North Coast of NSW and beyond to attend Markets and other events

www.bonsaibus.com.au - www.facebook.com/TheBonsaiBus - www.instagram.com/thebonsaibus
Daluke
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 1025
Joined: September 15th, 2014, 8:04 pm
Favorite Species: Juniper
Bonsai Age: 8
Location: Melbourne
Has thanked: 17 times
Been thanked: 106 times

Re: Brown Tips on Juniper Chinesis

Post by Daluke »

We had a few cold nights in Melbourne. All my junipers bronzed and the tips looked dead. They have bounced back with spring. Is it usual that only one tree would flower and not the rest?
User avatar
kcpoole
Perpetual Learner
Perpetual Learner
Posts: 12289
Joined: November 12th, 2008, 4:02 pm
Favorite Species: Maple
Bonsai Age: 15
Bonsai Club: the School Of Bonsai
Location: Western Sydney, NSW, Australia
Has thanked: 18 times
Been thanked: 94 times
Contact:

Re: Brown Tips on Juniper Chinesis

Post by kcpoole »

@daluke, we have had not much cold per se, cool tho and the weird thing is only 1 tree has done it.

looks like you have it Shibui :yes: thanks Dansai, that photo looks just like it to me. Never seen it before so really weird to me. I will watch it and make sure it does not change to anything else.

next question is does the tree have both male nad female parts? will it now develop cones or does that happen on a tree with opposite sex? :lost:

Ken
Check out our Wiki for awesome bonsai information www.ausbonsai.com.au/wiki
What is Bonsai? http://www.ausbonsai.com.au/wiki/index.php?title=Bonsai
What should I do now? http://www.ausbonsai.com.au/wiki/index.php?title=Newbie
How do I grow a Bonsai? http://www.ausbonsai.com.au/wiki/index. ... _a_Bonsai?
Visit a Bonsai nursery to see some real nice trees http://www.ausbonsai.com.au/wiki/index. ... _Nurseries
Scott Roxburgh
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 1395
Joined: November 27th, 2008, 12:37 pm
Favorite Species: Pine, Maple, and Juniper
Bonsai Age: 8
Bonsai Club: Canberra Bonsai Society
Location: Canberra
Has thanked: 25 times
Been thanked: 20 times
Contact:

Re: Brown Tips on Juniper Chinesis

Post by Scott Roxburgh »

If it keeps browning and isn't flowers, I'd most definitely say root issue. Too much water would be my first thought. Please keep us updated.
User avatar
kcpoole
Perpetual Learner
Perpetual Learner
Posts: 12289
Joined: November 12th, 2008, 4:02 pm
Favorite Species: Maple
Bonsai Age: 15
Bonsai Club: the School Of Bonsai
Location: Western Sydney, NSW, Australia
Has thanked: 18 times
Been thanked: 94 times
Contact:

Re: Brown Tips on Juniper Chinesis

Post by kcpoole »

Scott Roxburgh wrote:If it keeps browning and isn't flowers, I'd most definitely say root issue. Too much water would be my first thought. Please keep us updated.
Will do but doubt too wet in my substrate and on the same bench as 4 others.
Might pop it out of the pot and check though for justin

Ken
Check out our Wiki for awesome bonsai information www.ausbonsai.com.au/wiki
What is Bonsai? http://www.ausbonsai.com.au/wiki/index.php?title=Bonsai
What should I do now? http://www.ausbonsai.com.au/wiki/index.php?title=Newbie
How do I grow a Bonsai? http://www.ausbonsai.com.au/wiki/index. ... _a_Bonsai?
Visit a Bonsai nursery to see some real nice trees http://www.ausbonsai.com.au/wiki/index. ... _Nurseries
shibui
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 7884
Joined: August 22nd, 2009, 8:41 pm
Favorite Species: trident maple
Bonsai Age: 41
Bonsai Club: Albury/Wodonga; BSV; Canberra; VNBC
Location: Yackandandah
Has thanked: 78 times
Been thanked: 1598 times
Contact:

Re: Brown Tips on Juniper Chinesis

Post by shibui »

One of your Sydneysiders gave a talk on shimpaku at Canberra a few years ago. She told us that juniper has separate male and female plants but discussing it afterward several experienced growers had all seen both male flowers and female berries on their plants.
Wikipedia is sitting on the fence:
This largely species often has dioecious either male and female plants, but some individual plants produce both sexes of flowers. The blue-black berry-like cones grow to 7-12 mm in diameter, have a whitish waxy bloom, and contain 2-4 seeds; they mature in about 18 months. The male cones, 2-4 mm long, shed their pollen in early spring.
Looks like you'll just have to wait and see what sort you have Ken.
http://shibuibonsai.com.au/" onclick="window.open(this.href);return false;
User avatar
kcpoole
Perpetual Learner
Perpetual Learner
Posts: 12289
Joined: November 12th, 2008, 4:02 pm
Favorite Species: Maple
Bonsai Age: 15
Bonsai Club: the School Of Bonsai
Location: Western Sydney, NSW, Australia
Has thanked: 18 times
Been thanked: 94 times
Contact:

Re: Brown Tips on Juniper Chinesis

Post by kcpoole »

Thanks Neil
The wait will be interesting :-) :yes:

Ken
Check out our Wiki for awesome bonsai information www.ausbonsai.com.au/wiki
What is Bonsai? http://www.ausbonsai.com.au/wiki/index.php?title=Bonsai
What should I do now? http://www.ausbonsai.com.au/wiki/index.php?title=Newbie
How do I grow a Bonsai? http://www.ausbonsai.com.au/wiki/index. ... _a_Bonsai?
Visit a Bonsai nursery to see some real nice trees http://www.ausbonsai.com.au/wiki/index. ... _Nurseries
User avatar
treeman
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 2877
Joined: August 15th, 2011, 4:47 pm
Favorite Species: any
Bonsai Age: 25
Location: melbourne
Has thanked: 31 times
Been thanked: 617 times

Re: Brown Tips on Juniper Chinesis

Post by treeman »

It doesn't look like flowers to me. More like a root problem, or burn of some sort.
Mike
Andrew Legg
Aussie Bonsai Fan
Aussie Bonsai Fan
Posts: 1404
Joined: June 24th, 2010, 6:23 pm
Favorite Species: The ones that don't die
Bonsai Age: 15
Bonsai Club: Oyama Bonsai Kai, Ausbonsai
Location: Cape Town, South Africa
Been thanked: 2 times

Re: Brown Tips on Juniper Chinesis

Post by Andrew Legg »

I'm with treeman. Dem ain't no flowers Ken. Dat dere tree, she's gotta problemo. On my Junis that flower close inspection reveals the flower being a distinctly different bit. It almost looks like a very very smal closed cone. It is clear from your pic that the actual foliage has browned.
Post Reply

Return to “Pests and Diseases”