Hemlocks dying

hockeypuck · 05-17-2010, 03:24 PM

You may want to check for white powder like substance sticking to the needles. Could be a fungus called woolly adelgid ( not sure on the spelling). This disease attacks evergreens and must be treated with a systemic poison, that is mixed with water and watered into the roots.

CrawfordCentury · 05-17-2010, 04:18 PM

Quote:

Originally Posted by hockeypuck

You may want to check for white powder like substance sticking to the needles. Could be a fungus called woolly adelgid ( not sure on the spelling). This disease attacks evergreens and must be treated with a systemic poison, that is mixed with water and watered into the roots.

I certainly hope not as this would not bode well for the forested landscape of central NH.

This is an invasive insect from eastern Asia. It's been on the radar screen of foresters and arborists for awhile.

What you'd see on the underside of a branch:

Detail of the dreaded adelgid itself:

If you find evidence of an adelgid colony, contact the UNH Co-op and let them know what you see.

Hopefully, what you are seeing is the result of an isolated stressor such as road salt or a localized trauma.

RLW · 05-17-2010, 04:54 PM

Quote:

Originally Posted by CrawfordCentury

I certainly hope not as this would not bode well for the forested landscape of central NH.

This is an invasive insect from eastern Asia. It's been on the radar screen of foresters and arborists for awhile.

What you'd see on the underside of a branch:

If you find evidence of an adelgid colony, contact the UNH Co-op and let them know what you see.

Hopefully, what you are seeing is the result of an isolated stressor such as road salt or a localized trauma.

Eureka, you hit it. It has been around now for 4 or 5 years but in different areas and for some reason has disappeared from areas that has been seen in. They say it can be very destructive. Let us

it isn't that fungus.

CrawfordCentury · 05-17-2010, 05:05 PM

Quote:

Originally Posted by RLW

Eureka, you hit it. It has been around now for 4 or 5 years but in different areas and for some reason has disappeared from areas that has been seen in. They say it can be very destructive. Let us prayer it isn't that fungus.

Actually, it's been stateside since the 20s, making landfall from the Orient in the PNW and slowly heading east. They had a bad blight of it in PA, akin to what emerald ash borer is doing to ash trees in IN, Mich., and elsewhere in the Midwest.

I seem to recall hearing that the wooley adelgid may have reached the northernmost extreme in S. New England. But sometimes my memories get twisted with strains of wishful thinking.

RLW · 05-17-2010, 05:55 PM

Quote:

Originally Posted by CrawfordCentury

Actually, it's been stateside since the 20s, making landfall from the Orient in the PNW and slowly heading east. They had a bad blight of it in PA, akin to what emerald ash borer is doing to ash trees in IN, Mich., and elsewhere in the Midwest.

Yes I realize all that. I didn't know into the 20's though, but I was referring in the state of NH it was about 4 or 5 years ago that the public was really starting to see it and talk about it.

hockeypuck · 05-17-2010, 06:25 PM

I stand corrected. Not a fungus but some kind of insect. Either way it is not good. Down here in CT it attacked many hemlocks six of which I had on my property but early detection and action saved them. As I recall the treatment was a little expensive, but certainly something homeowners can do themselves.

kimdaved · 05-17-2010, 11:36 PM

Courtney Kelly of Arbor Tech- Removed 3 large hemlocks from our property in Alton. All three trees over the past year started to look thin. We came up in March and 1 tree had thousands of wood pecker holes was clearly dead and the 2 others looks to be in poor health. Court mentioned that the woolly adelgid had infected some trees in Alton last year but they were all removed. He thought the tree had a bug called the hemlock borer. He was correct as I contacted the New Hampshire Forestery Dept. whom surveyed our property and reported back to us that the trees were infected with the hemlock borer and the trees needed to be removed. Once the forest dept found out that we resided in Worcester they were up at our property the next day.

I would recommend Arbor Tech anyday. Looks like I never had trees taken down as I was expecting some lawn damage and some sawdust piles.

05-17-2010, 11:36 PM	#7
kimdaved Junior Member Join Date: Mar 2006 Posts: 16 Thanks: 0 Thanked 2 Times in 2 Posts	Hemlock Borer Courtney Kelly of Arbor Tech- Removed 3 large hemlocks from our property in Alton. All three trees over the past year started to look thin. We came up in March and 1 tree had thousands of wood pecker holes was clearly dead and the 2 others looks to be in poor health. Court mentioned that the woolly adelgid had infected some trees in Alton last year but they were all removed. He thought the tree had a bug called the hemlock borer. He was correct as I contacted the New Hampshire Forestery Dept. whom surveyed our property and reported back to us that the trees were infected with the hemlock borer and the trees needed to be removed. Once the forest dept found out that we resided in Worcester they were up at our property the next day. I would recommend Arbor Tech anyday. Looks like I never had trees taken down as I was expecting some lawn damage and some sawdust piles.

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05-17-2010, 03:24 PM	#1
hockeypuck Senior Member Join Date: Oct 2005 Location: Southern CT Posts: 169 Thanks: 19 Thanked 4 Times in 3 Posts	You may want to check for white powder like substance sticking to the needles. Could be a fungus called woolly adelgid ( not sure on the spelling). This disease attacks evergreens and must be treated with a systemic poison, that is mixed with water and watered into the roots.

The Following 3 Users Say Thank You to CrawfordCentury For This Useful Post:
hockeypuck (05-17-2010), Lucky1 (06-02-2010), SteveA (05-19-2010)

05-17-2010, 06:25 PM	#6
hockeypuck Senior Member Join Date: Oct 2005 Location: Southern CT Posts: 169 Thanks: 19 Thanked 4 Times in 3 Posts	I stand corrected. Not a fungus but some kind of insect. Either way it is not good. Down here in CT it attacked many hemlocks six of which I had on my property but early detection and action saved them. As I recall the treatment was a little expensive, but certainly something homeowners can do themselves.