JBP banding on one branch

[Ghoulbath]

Hey all. Recently got a new black pine and it definitely was not in the best soil and was overwatered by the PO. It was slip potted by a friend to get it out of the bulk of the trash soil.

Things are looking up and it seems to be improving and pushing candles, even tho candles are small this year. One issue, however, is I see banding on a single branch. Thankfully it seems to be isolated to that branch, and from my understanding this points to it being in the roots.

Wondering if anyone has any suggestions of insights on this. Would fungicide be a waste of time?

Thanks in advance!

 

[Dav4]

That looks like needle cast, a fungal infection of the needles. I’d do some research here and consider treating.

 

[shohin_branches]

Look up needle cast. You'll always need to do a preventive treatment with a fungicide. Unfortunately once a needle has the band on it you can't heal the needle. You'll want to treat new growth to prevent it from having any banding on it.

 

[River's Edge]

Hey all. Recently got a new black pine and it definitely was not in the best soil and was overwatered by the PO. It was slip potted by a friend to get it out of the bulk of the trash soil.

Things are looking up and it seems to be improving and pushing candles, even tho candles are small this year. One issue, however, is I see banding on a single branch. Thankfully it seems to be isolated to that branch, and from my understanding this points to it being in the roots.

Wondering if anyone has any suggestions of insights on this. Would fungicide be a waste of time?

Thanks in advance!

check out . https://bonide.com/product/infuse-systemic-disease-control-conc/
Infuse by Bonide is an excellent systemic for needle cast. Treat when apparent on old needles, when new needles come in if they are clear the treatment was successful. Do not wait to see what the new needles look like first. By then the disease will have progressed considerably.
I have found it very effective both to treat active needle cast and as a preventative treatment.
Topical treatments are mostly copper based and in my experience not as effective.
The package on the left in the picture below.

 

[Ghoulbath]

check out . https://bonide.com/product/infuse-systemic-disease-control-conc/
Infuse by Bonide is an excellent systemic for needle cast. Treat when apparent on old needles, when new needles come in if they are clear the treatment was successful. Do not wait to see what the new needles look like first. By then the disease will have progressed considerably.
I have found it very effective both to treat active needle cast and as a preventative treatment.
Topical treatments are mostly copper based and in my experience not as effective.
The package on the left in the picture below.

Thanks so much for the recommendation. I’ll pick this up today!

 

[Ghoulbath]

Look up needle cast. You'll always need to do a preventive treatment with a fungicide. Unfortunately once a needle has the band on it you can't heal the needle. You'll want to treat new growth to prevent it from having any banding on it.

What do you suggest as preventative? A copper fungicide spray monthly, perhaps?

 

[Ghoulbath]

check out . https://bonide.com/product/infuse-systemic-disease-control-conc/
Infuse by Bonide is an excellent systemic for needle cast. Treat when apparent on old needles, when new needles come in if they are clear the treatment was successful. Do not wait to see what the new needles look like first. By then the disease will have progressed considerably.
I have found it very effective both to treat active needle cast and as a preventative treatment.
Topical treatments are mostly copper based and in my experience not as effective.
The package on the left in the picture below.

Do you use it monthly as a preventative? Or only in early spring and before winter?

 

[River's Edge]

Do you use it monthly as a preventative? Or only in early spring and before winter?

I use it twice a year in my climate beginning of October and beginning of March. The manufacturer suggests it is effective for five or six months. The dosage is small quantities for Bonsai. I am located in a rain forest type region so lots of moist soil conditions and needle cast is prevalent in the native pine species here on Vancouver Island. Simply not avoidable. The best approach seems to be preventative when surrounded by natural forests.
I encourage you to do your own math for accuracy. However it goes a long way ve careful to not over purchase. For a rough guideline I use 1/4 teaspoon of granules in a regular size Bonsai pot and 1/2 teaspoon of granules in an Anderson Flat. I just sprinkle evenly on the surface and water normally!

 

[Ghoulbath]

I use it twice a year in my climate beginning of October and beginning of March. The manufacturer suggests it is effective for five or six months. The dosage is small quantities for Bonsai. I am located in a rain forest type region so lots of moist soil conditions and needle cast is prevalent in the native pine species here on Vancouver Island. Simply not avoidable. The best approach seems to be preventative when surrounded by natural forests.
I encourage you to do your own math for accuracy. However it goes a long way ve careful to not over purchase. For a rough guideline I use 1/4 teaspoon of granules in a regular size Bonsai pot and 1/2 teaspoon of granules in an Anderson Flat. I just sprinkle evenly on the surface and water normally!

Very helpful, thank you so much!!

 

[Paradox]

What do you suggest as preventative? A copper fungicide spray monthly, perhaps?

Besides the bonide granules, spraying once a month as a preventative is also a good idea during the warm summer months and humid months.
I would alternate between copper and something like Daconil.
As others said, you need to prevent infection in the first place. Needles are infected one full year before you see the banding

 

[Ghoulbath]

Besides the bonide granules, spraying once a month as a preventative is also a good idea during the warm summer months and humid months.
I would alternate between copper and something like Daconil.
As others said, you need to prevent infection in the first place. Needles are infected one full year before you see the banding

Great info, thank you. I applied the granules tonight and will proceed with alternating monthly sprays!

 

[River's Edge]

Perhaps reconsider combining both approaches at the same time? Why would you? The tree is being treated systemically which halts the infection. I would begin preventative action after the treatment is complete and the tree is no longer infected. All new candles and needle growth is clear. .
Using all your treatment options at the same time seems overkill and will lessen the effectiveness of the variety of treatments over time.
When I suggested your using Infuse as the treatment that was by itself. I also use it as a preventative in regular care! Twice a year.
I do not use the copper based sprays as they were quite ineffective on Needle cast. Once I began using Infuse that solved the problem and I no longer use the copper based sprays for that particular problem.
Please do not misunderstand my comments, Rotating treatments of effective methods is a good practise. However, products such as Daconil and Mancozeb have proven to be less effective. I have used both in the past. They were recommended as better choices in the past before more effective treatments were developed. I can see sticking with them if other treatments are not available or one does not wish to use certain chemicals.
Then there is the simpler question. If you combine treatments how will you know which one works and which ones were ineffective?
Just feel that the combined advice is not what was intended.
Best in Bonsai

 

[Ghoulbath]

Perhaps reconsider combining both approaches at the same time? Why would you? The tree is being treated systemically which halts the infection. I would begin preventative action after the treatment is complete and the tree is no longer infected. All new candles and needle growth is clear. .
Using all your treatment options at the same time seems overkill and will lessen the effectiveness of the variety of treatments over time.
When I suggested your using Infuse as the treatment that was by itself. I also use it as a preventative in regular care! Twice a year.
I do not use the copper based sprays as they were quite ineffective on Needle cast. Once I began using Infuse that solved the problem and I no longer use the copper based sprays for that particular problem.
Please do not misunderstand my comments, Rotating treatments of effective methods is a good practise. However, products such as Daconil and Mancozeb have proven to be less effective. I have used both in the past. They were recommended as better choices in the past before more effective treatments were developed. I can see sticking with them if other treatments are not available or one does not wish to use certain chemicals.
Then there is the simpler question. If you combine treatments how will you know which one works and which ones were ineffective?
Just feel that the combined advice is not what was intended.
Best in Bonsai

I was referring to monthly sprays of my other trees not the same one I treated with granules. No other trees are showing signs of an issue at the moment. Yes, I agree doing both methods is overkill.

 

[Ghoulbath]

Perhaps reconsider combining both approaches at the same time? Why would you? The tree is being treated systemically which halts the infection. I would begin preventative action after the treatment is complete and the tree is no longer infected. All new candles and needle growth is clear. .
Using all your treatment options at the same time seems overkill and will lessen the effectiveness of the variety of treatments over time.
When I suggested your using Infuse as the treatment that was by itself. I also use it as a preventative in regular care! Twice a year.
I do not use the copper based sprays as they were quite ineffective on Needle cast. Once I began using Infuse that solved the problem and I no longer use the copper based sprays for that particular problem.
Please do not misunderstand my comments, Rotating treatments of effective methods is a good practise. However, products such as Daconil and Mancozeb have proven to be less effective. I have used both in the past. They were recommended as better choices in the past before more effective treatments were developed. I can see sticking with them if other treatments are not available or one does not wish to use certain chemicals.
Then there is the simpler question. If you combine treatments how will you know which one works and which ones were ineffective?
Just feel that the combined advice is not what was intended.
Best in Bonsai

What I thought was the previous owner trimming needles, is definitely tip blight. I’m still very new in the grand scheme of things so I guess I just missed it but the cigarette ash needle tips seem to be the dead giveaway. Will the granules also help with tip blight?

 

[River's Edge]

What I thought was the previous owner trimming needles, is definitely tip blight. I’m still very new in the grand scheme of things so I guess I just missed it but the cigarette ash needle tips seem to be the dead giveaway. Will the granules also help with tip blight?

I have not used the product for that purpose so could not say one way or another.