Baz
ArboristSite Lurker
When the borer moves into the area, what percentage of the ash trees will be affected by them? Of the trees hit, is mortality 100%?
Emerald Ash Borer
- Thread starter Baz
- Start date
Help Support Arborist Forum:
PUclimber
ArboristSite Operative
Not necessarily. There are some age groups that are more resistant plus some areas may be isolated enough not to be infected. Others just get lucky and don't get infested or some you can treat. There was a seminar today at the Indiana confrence talking about it.
If left alone, it appears the long-term infection rate will be very near 100%. Like PUclimber said there are a few circumstances that lower the percentage. The lower percentage may be long-term or may be short-term. Nobody has been studying this long enough to really know about the long term...
*Treatment - the trees are still affected...properly applied treatment just serves to minimize that impact (at least we hope that will be the long-term result, based on the relatively little research that is out there)
*Individuals too far from other infestations - I would say this is an area not yet infested. VERY unlikely to have uninfested trees within 1/4 mile of significant infestations that are left alone. I think some findings suggest that individual isolated trees may stand a chance as they are "lost" in the landscape by the bugs.
*Lucky ones that don't get infested - Again if things are left to "run their course" all eveidence that I have seen suggests that these will only be luck for so long.
*More resistant trees - Maybe PUclimber has seen information that I have not (entirely possible), but my understanding is that while the younger/more vigorous trees are resistant to EAB, they are not immune to EAB. Once again, if left untreated, it seems they will sucumb - it may take 7 years instead of 3, but the end is still the same and is still in sight. I think this last group really presents opportunity for successful treatment programs. If we can usethe best care on the healthiest trees, we can continue to have healthy ash in the landscape - albeit with relatively significant maintainence costs...
*Treatment - the trees are still affected...properly applied treatment just serves to minimize that impact (at least we hope that will be the long-term result, based on the relatively little research that is out there)
*Individuals too far from other infestations - I would say this is an area not yet infested. VERY unlikely to have uninfested trees within 1/4 mile of significant infestations that are left alone. I think some findings suggest that individual isolated trees may stand a chance as they are "lost" in the landscape by the bugs.
*Lucky ones that don't get infested - Again if things are left to "run their course" all eveidence that I have seen suggests that these will only be luck for so long.
*More resistant trees - Maybe PUclimber has seen information that I have not (entirely possible), but my understanding is that while the younger/more vigorous trees are resistant to EAB, they are not immune to EAB. Once again, if left untreated, it seems they will sucumb - it may take 7 years instead of 3, but the end is still the same and is still in sight. I think this last group really presents opportunity for successful treatment programs. If we can usethe best care on the healthiest trees, we can continue to have healthy ash in the landscape - albeit with relatively significant maintainence costs...
John Paul Sanborn
Above average climber
The papers I've read, and the seminars I've heard; infestation is 100% for stems down to 1 inch caliper. Larvae was found in whip stock and wild saplings.
Most trees will show signs of decline in 2-3 years.
Most trees will show signs of decline in 2-3 years.
PUclimber
ArboristSite Operative
In the talks given yesterday at the Indian arborist confrence there was talk and facts about the use of different treatments on the trees where after treatment there was little to know further infestations. Also if you start one or two cycles or more before infestation you have a better chance that there will be no infestation of the trees. To help you're trees be somewhat resistant to this little green monster you can water trees on a regular basis and use fertilizers to help the vigor of the tree. Soil drenches and root injections will also help reduce the risk of EAB. If detected early enough injections and drenches will help the vigor of the tree. There have been instances where the trees started to grow over previous colonized areas.
MarsCrash
ArboristSite Lurker
Mortality not 100%
I'm treating some trees that are still looking good, but we're getting more ash removals every day. White ashes seem to hold up better. I think that's because the EAB lays eggs in bark furrows and the white has smoother bark on the branch ends and as smaller trees. I may be switching to Arborjet. That seems to work the best from other guys I've talked to.
I'm treating some trees that are still looking good, but we're getting more ash removals every day. White ashes seem to hold up better. I think that's because the EAB lays eggs in bark furrows and the white has smoother bark on the branch ends and as smaller trees. I may be switching to Arborjet. That seems to work the best from other guys I've talked to.
The Climber
ArboristSite Member
Any maps?
Does anybody have a map showing were the EAB is so far, and the rate of expansion?
Does anybody have a map showing were the EAB is so far, and the rate of expansion?
Baz
ArboristSite Lurker
Thanks for the input. Also, my post belonged in Arborist 101, not here. Thanks for your patience.
Here is where it is. I have not seen a single map showing its rate of spread, but I bet there is one out there. Actually to call those "rate of spread" maps would be misleading. "rate of find" would be a better name...
unh
I really hate Adobe Acrobat. Use it at work with the same results. The little bit of hard drive space it saves doesn't help because the end result is schmear.
.......interesting that there isn't anything, then one in Maryland?
Looks like I'll have to buy a bigger saw.
I really hate Adobe Acrobat. Use it at work with the same results. The little bit of hard drive space it saves doesn't help because the end result is schmear.
.......interesting that there isn't anything, then one in Maryland?
Looks like I'll have to buy a bigger saw.
The Climber
ArboristSite Member
Map
Thank You ATH,
I Live In Iowa and was unsure how close it was.
Thank You ATH,
I Live In Iowa and was unsure how close it was.
Climber,
Keep in mind that those are KNOWN infestations... Not all states are looking for it diligently.
Keep in mind that those are KNOWN infestations... Not all states are looking for it diligently.
Ed*L
ArboristSite Guru
Kneejerk Bombas
ArboristSite King
- Joined
- Oct 7, 2001
- Messages
- 36,971
- Reaction score
- 9,980
Why, yes it is. Thanks. Much better when you can read the counties. Looks like here in WI we'll get'em from the North and the South about the same time.
......and then someone will come along with something that will attack the ash borer, but inadvertently decimate something else.
Which reminds me, since last year, anything that goes to Mexico on a pallet, the pallet has to be heat treated. Apparently, Mexican officials are afraid we might export critters to their country. Like any of our critters would a) be able to live in the heat and b) the northern critters wouldn't last 10 minutes against Mexico's plethora of critters, something akin to a person jumping in a shark tank.
TheMDTreeman
ArboristSite Lurker
ATH,
what part of Ohio you in, I live in Hamilton County, it's not here yet, but Warren County has a confirmed target tree, so I know it is only a matter of time...by the way it has been years since I was last on this site, couldn't believe my name was still in the members, like to never remembered my password, so I want to say hi to everyone and hope to stay active
what part of Ohio you in, I live in Hamilton County, it's not here yet, but Warren County has a confirmed target tree, so I know it is only a matter of time...by the way it has been years since I was last on this site, couldn't believe my name was still in the members, like to never remembered my password, so I want to say hi to everyone and hope to stay active
I am in Hancock County. It is all around here, but hasn't been found right here yet
treevet
Addicted to ArboristSite
mdtreeman, I m in ham cty also and were all expecting the little fellow to make it's grand appearance as it works it's way down the I75 firewood highway. The maps make that very apparent.
PA Plumber
Addicted to ArboristSite
Hope you don't mind me jumping in here. Central PA has the borer. As far as firewood value, does it decrease it much?
Similar threads
