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Old 07-05-2015, 04:35 PM
 
Location: Southern Most New Jersey
1,101 posts, read 819,920 times
Reputation: 1742

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Just wanted to share. Been losing new top leader shoots on white pines for 2 years (NJ). Figured it out this weekend. Eastern Pineshoot Borer. Trimmed off insect laden shoots and put them in sealed plastic bag for trash pickup. Found a YouTube from a grower which also helped with ID and remediation.

Eastern Pineshoot Borer
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Old 07-05-2015, 04:51 PM
 
Location: LI,NY zone 7a
2,205 posts, read 1,171,304 times
Reputation: 2676
Big problem here on Long Island.
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Old 07-05-2015, 06:05 PM
 
Location: Swiftwater, PA
14,417 posts, read 11,725,880 times
Reputation: 10817
I believe you have a problem with the White Pine weevil. If you read this article you will see one picture of your dead white pine top (about half way through the article): http://extension.entm.purdue.edu/publications/E-256.pdf. My father used to immediately prune off the dead section; but the timing is crucial. Here is one other good article that gives a lot of useful information: White Pine Weevil.
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Old 07-05-2015, 06:49 PM
 
Location: Southern Most New Jersey
1,101 posts, read 819,920 times
Reputation: 1742
Many thanks fisheye. I believe you are correct. The damage in the photos in the articles looks much like the damage on my trees. And I was able to cut out the 1/4 inch c shaped grubs (many in each shoot) in several shoots. And I found the old exit holes on old growth...very telltale.

I have a call into my local extension agent. I will ask him about spray applications as well as pruning.

I am beginning to realize I have to do more pest/disease scouting.

Any idea regarding spray applications? Effective chemical? - Timing?
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Old 07-05-2015, 10:46 PM
 
Location: Former LI'er Now Rehoboth Beach, DE
7,875 posts, read 10,563,569 times
Reputation: 7962
Be sure to clean the printers with a bleach solution, too.
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Old 07-06-2015, 05:54 AM
 
Location: Swiftwater, PA
14,417 posts, read 11,725,880 times
Reputation: 10817
Quote:
Originally Posted by NJBoy3 View Post
Many thanks fisheye. I believe you are correct. The damage in the photos in the articles looks much like the damage on my trees. And I was able to cut out the 1/4 inch c shaped grubs (many in each shoot) in several shoots. And I found the old exit holes on old growth...very telltale.

I have a call into my local extension agent. I will ask him about spray applications as well as pruning.

I am beginning to realize I have to do more pest/disease scouting.

Any idea regarding spray applications? Effective chemical? - Timing?
First; your welcome; glad I could help.

That second link that I gave you has spray applications/recommendations. Your local extension office should also help make the right decisions at the right time.

As far as the 'nuts2uiam' post; I believe that is recommended for what I am fighting - fire blight on my fruit trees. But any disease/blight or pest should be removed from the host tree that you are trying to protect - so it is not a bad recommendation. I am supposed to remove my clippings 100 yards away from my trees.
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