new to treating EAB

JD3000 said:
Some light reading.
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one quick question while I'm reading through. One of your attachments mentions drenching for trees under 20" DBH, is this a better option for smaller trees than injection? or just an alternative suggestion that a homeowner could do on their own? Essentially am I better of drenching some of our trees and injecting the rest, or inject each of them?
 
I would say under 15", or better yet 12" or so a drench is pretty effective. However, assuming said ash trees are still healthy and growing well, a younger tree is probably better equiped to deal with the damage of trunk injection. Damned if ya do and damned if ya don't...

I'm advocating a longer injection cycle, 3 years for trees that are doing well, are significant/important, and have a good history of treatment. That pretty much encompasses our surving ash as eab hit very early here.

Hopefully, the bug will burn itself out by consuming native untreated ash until they're gone but I'm still seeing many small diameter natives that seem unaffected until they reach a certain size, perhaps 3-4" dbh? Not really sure about that part truth be told
 
So I tried my first injection this morning, and it seems to have gone well. It is an Ash with a 26" DBH and it calls for 258 ml. It says to use 6 to 8 plugs for this size of tree. Since this system has a splitter that goes into 4 injections, if I use a non multiple of 4 do you just leave the one (or however many) lines closed? Will it still uptake that amount that goes into the line that isn't used, or is it wasted and such a small amount that I shouldn't worry about it?

One more question, I had one plug that was leaking although it seemed to go in just like the rest. I opted to shut that one off while it is still going. Should I set a new plug next to it, or try to set it a little deeper? I used 8 plugs, so I figured the other 7 will probaby get the uptake needed.
 
26 inch tree should probably have 12 to 16 injection points. Not sure about a semi-dormant injection in Illinois? Evansville? Did I guess right there? Never seen any data or word on injecting without active foliage. I have personally hit pockets of decay and the juice just flies into that area without any actual uptake. Trees such as that are usually not great candidates for preservation.

Try setting that plug a little deeper next time. If it still leaks, try another place. I believe about 10ml can be held in the lines or so, probably a bit more if splitters and needles are added.
 
that's interesting on the 12-16 injection points. The official "Tree I.V. training manual" suggest that you divide the DBH by either 3 or 4 to determine the number of injections. Are you suggesting that it would be better to divide by 2, or is there another way to determine the number of spots?

I am in Evansville, Indiana. Southwest corner of the state. uptake seemed to go good, One half of the system is now done, it took about 2.5 hrs (the one with the leak) the other bottle is still setup and being monitored. Perhaps warmer weather would have been more beneficial, but I wanted to give it a test run with a lesser priority tree before I moved on to our higher priority trees as I am still learning. Thanks for the feedback
 
Jehinten said:
that's interesting on the 12-16 injection points. The official "Tree I.V. training manual" suggest that you divide the DBH by either 3 or 4 to determine the number of injections. Are you suggesting that it would be better to divide by 2, or is there another way to determine the number of spots?

I am in Evansville, Indiana. Southwest corner of the state. uptake seemed to go good, One half of the system is now done, it took about 2.5 hrs (the one with the leak) the other bottle is still setup and being monitored. Perhaps warmer weather would have been more beneficial, but I wanted to give it a test run with a lesser priority tree before I moved on to our higher priority trees as I am still learning. Thanks for the feedback
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You guys are injecting now? We only inject in warmer temps and when the trees have leaves on them. Yes treeage does say divide the DBH by 3, the manual I just checked for quick jet says 2-4 sites.
We’ve always gone with divide by 3.
 
deevo said:
You guys are injecting now? We only inject in warmer temps and when the trees have leaves on them. Yes treeage does say divide the DBH by 3, the manual I just checked for quick jet says 2-4 sites.
We’ve always gone with divide by 3.
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I'm probably a bit early on this one tree. It was my first ever injection and the weather was just barely the minimum temps that was called for. I will be waiting on the rest of the trees until they leaf out. I have 23 other trees on this property that I will be treating later this spring.

I did read everything I could find on trunk injections before starting this, but admittedly that was a couple of months ago. Now that you guys mention it I do remember it saying that there should be leaves, but I had forgotten that.
 
Yeah...shouldn't take 2.5 hours! More like 20-30 minutes of uptake time max when you do it in full foliage on a sunny slightly breezy day.

The leaky hole: Either not set deep enough as @JD3000 suggested or if you don't go straight in and straight out with the drill, you can widen the top of the hole and not get a good seal. It does take a little "touch" to get those set just right. If they are a little shallow, you can also get some product going between the bark and xylem, which is not good. Will leave a small dead spot. When I first started I saw one of the trees start to bulge around a plug. Shut if off quickly, but I can still see on that tree where I killed a small spot of the cambium Not sure how far that would have gone if I let it keep pushing liquid in and separating the bark... I pay better attention now. Lesson learned. But if they are too deep, you will be past the sapwood that is taking the pesticide and moving it up the tree.
 
Thanks for that. I had no idea how long the process should take. I'll have something to compare the speed to next time, to see if I need to do anything different
 
Some do take longer than others. But 2.5 hours is too long! Some holes just don't take anything in. I haven't figured out a pattern to determine whether that is my problem (drilling or setting plug?) or just bad spots in the tree.
 
JD3000 said:
Yeah it can be maddening as there doesn't seem to be any rhyme or reason to injecting otherwise healthy ash other than high temps and low soil moisture.
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Yeah the sad part also is around where I am it’s only in some areas seems to have skipped over parts of my Twp and neighbouring twp’s and still the ash trees seem to be doing fine. Some towns are panicking and mowing them all down and there are absolutely no signs of it and 2 twp’s I do work for we are just doing tree by tree cases. We injected close to 2500 trees last year on 5 estates and other properties, all doing well. The Arborjet dealer here thought we were doing small towns and said we were one of the top purchasers in the province. I still have 2 boxes of imajet left from last year
 
Anyone have any experience with using the Wedgle Direct-Inject System to inject Ash trees with Em Ben (Boxer)? Any tips? Tried doing some the other day and many of my injections came back out onto the outer bark.
 
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