Kinzu -white dots-help

View previous topic View next topic Go down

Kinzu -white dots-help

Post  amazonida on Tue Jun 01, 2010 3:48 pm

Hello! i don't know if Citurs is your speciality but i'm posting it just in case...
This white little dots have appear 2 weeks ago...the plant is okay.. in my ordinary view of course. But i'm afraid it can turn into a terrible disease in the future.
Can anyone help?
Thanks!



amazonida
Member


Back to top Go down

Re: Kinzu -white dots-help

Post  JimLewis on Tue Jun 01, 2010 8:26 pm

We need a bit more information.

Do they move?

Can you rub them off?

Can you wash them off?

Do they feel rough or gritty when you rub at them with a finger? Or are they soft and mushy?

_________________
Jim Lewis - lewisjk@windstream.net - Western NC - People, when Columbus discovered this country, it was plumb full of nuts and berries. And I'm right here to tell you the berries are just about all gone. Uncle Dave Macon, old-time country musician

JimLewis
Member


Back to top Go down

Re: Kinzu -white dots-help

Post  amazonida on Tue Jun 01, 2010 9:36 pm

hey JIm,
They don´t move.
i can rub them off, but it´s hard..
i´ve never tryied to wash ....
they feel rough or gritty when you rub at them with a finger..
how can you be so precisly?
do i need cooper solution as a medicene to treat??

amazonida
Member


Back to top Go down

Re: Kinzu -white dots-help

Post  JimLewis on Wed Jun 02, 2010 12:39 pm

I suspect it is not a disease at all. It may well be a precipitate the tree expels though the bark, via stoma. Some warm-climate trees have this "ability." Are there similar specks on (under) the leaves? Is your water very hard (alkali?)

_________________
Jim Lewis - lewisjk@windstream.net - Western NC - People, when Columbus discovered this country, it was plumb full of nuts and berries. And I'm right here to tell you the berries are just about all gone. Uncle Dave Macon, old-time country musician

JimLewis
Member


Back to top Go down

Re: Kinzu -white dots-help

Post  jrodriguez on Wed Jun 02, 2010 1:57 pm

Amazonida,

Yes, it is a pest infestation. Kinsu oranges, (Fortunella Hindsii/Hong Kong Kumquat) is quite prone to scale insects, which in this case is what you are seeing in your tree. I usually spray mine with malathion and it usually takes care of the problem. Judging by the leaf coloration, it seems to be that this tree is not getting enough sun. As in many cases, the lack of sunlight exposure causes cirtus trees to weaken, thus leading to plague infestation.

Before applying insecticide, brush the tree thoroughly to get rid of as much of the scale as possible. After, apply the product and place the tree in partial shade.

Kind regards,
Jose


Last edited by jrodriguez on Wed Jun 02, 2010 3:20 pm; edited 1 time in total

jrodriguez
Member


Back to top Go down

Re: Kinzu -white dots-help

Post  JimLewis on Wed Jun 02, 2010 2:53 pm

I'm not trying to argue, but I have never seen a scale that looks like that. Or that feels "rough or gritty." They're usually spongy and if you press on them you get a red or green blob.

Amazonida, does your camera have a "macro" (close-up) setting? Can you get real close to one or some of these things.

_________________
Jim Lewis - lewisjk@windstream.net - Western NC - People, when Columbus discovered this country, it was plumb full of nuts and berries. And I'm right here to tell you the berries are just about all gone. Uncle Dave Macon, old-time country musician

JimLewis
Member


Back to top Go down

Re: Kinzu -white dots-help

Post  Guest on Wed Jun 02, 2010 7:50 pm

My first thought when I saw this was Scale insect. There are many types Jim and this one looks very similar to Juniper Scale.

Guest
Guest


Back to top Go down

Re: Kinzu -white dots-help

Post  amazonida on Fri Jun 04, 2010 9:39 pm

washed!
Thanks Jim. pests always makes me nervous!
JRodriguez, thanks. do i need to defoliate it in order to renew it's foliage? i mean, in Brazil we got a lot of full sun light. Do you think that it can be lack of water? or necessity to a root prune??

amazonida
Member


Back to top Go down

Re: Kinzu -white dots-help

Post  jrodriguez on Mon Jun 07, 2010 12:16 am

Amazonida,

I am not sure if what type of soil you use for your kinsu. I use 75% mountain sand and 25% humus. Citruis trees like well aireated soil. Defoliation is an option, it all depends on design and purpose.

Kind regards,
Jose

jrodriguez
Member


Back to top Go down

Re: Kinzu -white dots-help

Post  Sponsored content Today at 8:37 am


Sponsored content


Back to top Go down

View previous topic View next topic Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum