Beech Leaf Disease

BLD is pretty much everywhere here as of 2 years ago but just yesterday I saw a beech with virtually no sign of it despite being surrounded by many hundreds of thoroughly sickened beeches in this particular 'hood.
 
GregManning said:
Is the state aware of this ? BLD authorities aware ? Seems important !
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Was just in a beech dominant forest area, hard hit in Wayland, Massachusetts, out of 40 plus trees, a handful in decent shape. I think there is random variation (unknown variables) in the intensity of nematode attack and response. I expect it would take many hundreds of years for beech with any tendency for resistance to start turning the tide.

There didn't seem to be any correlation between tree response and age, equal opportunity destroyer. One big and tall beech was under attack but looked pretty good considering how bad most of them looked.
-AJ
 
moss said:
Was just in a beech dominant forest area, hard hit in Wayland, Massachusetts, out of 40 plus trees, a handful in decent shape. I think there is random variation (unknown variables) in the intensity of nematode attack and response. I expect it would take many hundreds of years for beech with any tendency for resistance to start turning the tide.

There didn't seem to be any correlation between tree response and age, equal opportunity destroyer. One big and tall beech was under attack but looked pretty good considering how bad most of them looked.
-AJ
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Just a note, it is my understanding that nematodes may be a probable contributor, but may not be the only cause of BLD.
 
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The Green One said:
Tricky Foliar Nematodes.

Potassium Phosphite has shown some effectiveness YET is not a Nematicide.

More to discover......
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Yeah, I don’t think there’s any data showing that those trees treated with those types of products have any reduction in nematodes but the products are simply doing what they do in cultivating a more robust tree.
 
Hey All.

I just received an e-mail about a new "Section 24(c) special local need label" for New Jersey use, on a product that has been in testing AND works to control BLD on trees larger than 5" DBH.

Some good news finally.

Arbotect 20-S https://www.rainbowecoscience.com/products/arbotect-20-s

I asked IF there is a Label for Long Island, NY as well. Will post back when I hear back.


Happy Thanksgiving everyone.
 
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Interesting...It looks like Ohio also has a Section 24(c) label for Arbotect as well.

What a quick Google search did not turn up was a study suggesting efficacy of thiabendazole for Beech leaf disease. With most labels, the product does not need to be effective against a specific pest to be listed...just not harmful to the environment if applied as described. However, it is my understanding that for 24(c) labels, the requesting locality needs to demonstrate that the "special need" is effectively addressed by the product and that special need is not well addressed by other products. Most of what I have seen suggests Phosphites provide the most promise...as of now. So that seems to fill the niche meaning a 24(c) label wouldn't be necessary. Not to sound too cynical, but do I smell a marketing push here?

Would be curious if anybody has resources showing it is effective against BLD.
 
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ATH said:
Interesting...It looks like Ohio also has a Section 24(c) label for Arbotect as well.

What a quick Google search did not turn up was a study suggesting efficacy of thiabendazole for Beech leaf disease. With most labels, the product does not need to be effective against a specific pest to be listed...just not harmful to the environment if applied as described. However, it is my understanding that for 24(c) labels, the requesting locality needs to demonstrate that the "special need" is effectively addressed by the product and that special need is not well addressed by other products. Most of what I have seen suggests Phosphites provide the most promise...as of now. So that seems to fill the niche meaning a 24(c) label wouldn't be necessary. Not to sound too cynical, but do I smell a marketing push here?

Would be curious if anybody has resources showing it is effective against BLD.
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Very interesting. Thanks for the diligence !
 
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