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Brown Tips on Juniper Chinesis

Posted: September 27th, 2015, 11:41 am
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

Re: Brown Tips on Juniper Chinesis

Posted: September 27th, 2015, 12:20 pm
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 ?

Re: Brown Tips on Juniper Chinesis

Posted: September 27th, 2015, 3:06 pm
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

Re: Brown Tips on Juniper Chinesis

Posted: September 27th, 2015, 3:11 pm
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.

Re: Brown Tips on Juniper Chinesis

Posted: September 27th, 2015, 4:57 pm
by PeterH
Could be Juniper blight.

Re: Brown Tips on Juniper Chinesis

Posted: September 27th, 2015, 6:01 pm
by matlea
Too much water?

Re: Brown Tips on Juniper Chinesis

Posted: September 27th, 2015, 6:25 pm
by dansai
Here's an image of Juniper chinensis flowers. Hopefully Ken that's all it is.

https://encrypted-tbn3.gstatic.com/imag ... Hng9orJANQ

Re: Brown Tips on Juniper Chinesis

Posted: September 27th, 2015, 6:51 pm
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?

Re: Brown Tips on Juniper Chinesis

Posted: September 27th, 2015, 6:59 pm
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

Re: Brown Tips on Juniper Chinesis

Posted: September 27th, 2015, 10:57 pm
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.

Re: Brown Tips on Juniper Chinesis

Posted: September 27th, 2015, 11:52 pm
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

Re: Brown Tips on Juniper Chinesis

Posted: September 28th, 2015, 12:50 pm
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.

Re: Brown Tips on Juniper Chinesis

Posted: September 28th, 2015, 2:15 pm
by kcpoole
Thanks Neil
The wait will be interesting :-) :yes:

Ken

Re: Brown Tips on Juniper Chinesis

Posted: September 28th, 2015, 6:59 pm
by treeman
It doesn't look like flowers to me. More like a root problem, or burn of some sort.

Re: Brown Tips on Juniper Chinesis

Posted: September 28th, 2015, 7:39 pm
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.