New Needles with Yellow tips

[phken71]

Good morning everyone,

Just wanted to seek for experts advices towards my black pine issue recently.

I repotted my black pine last month, it looks healthy overall.
Yet when new shoots come up, some areas come with yellow tips (it is new not last year needles)

I have been monitoring it for a while, those needles grow and elongate.

Does anyone have any ideas why it did happen?
And how can I fix it?

Thanks

 

[Shibui]

I can see some needles in the circle that appear to have been broken or cut. That definitely causes the ends to turn yellow or brown.
You don't have a location in your profile which makes it hard to guess if there's some pest that chews pine needles or some animal or bird that might chew them. I'm assuming you have not cut those needles either on purpose or inadvertently?
Another thing that causes yellow tips is dehydration. Maybe the roots were a bit too dry at some stage?

The yellow tips are damaged. That damage cannot be reversed. All you can do is try to prevent it from happening next year.

 

[Brian Van Fleet]

It looks like physical damage. Where in the world are you? Hopefully in the Southern Hemisphere if you’re repotting in July.

 

[phken71]

I can see some needles in the circle that appear to have been broken or cut. That definitely causes the ends to turn yellow or brown.
You don't have a location in your profile which makes it hard to guess if there's some pest that chews pine needles or some animal or bird that might chew them. I'm assuming you have not cut those needles either on purpose or inadvertently?
Another thing that causes yellow tips is dehydration. Maybe the roots were a bit too dry at some stage?

The yellow tips are damaged. That damage cannot be reversed. All you can do is try to prevent it from happening next year.

Thanks for your comments.

I think it might be dehydration.
As I am in Thailand Bangkok, the season just changed from high humidity and hot to be low humidity and burning suddenly. So I didn't adapt the watering method.

 

[phken71]

It looks like physical damage. Where in the world are you? Hopefully in the Southern Hemisphere if you’re repotting in July.

It newly grows, I think it can be under watering like Shibui mentioned.

Btw, I am in Bangkok.
Thanks for your messages