norway spruce help needed

A

AxeTree

New member
Location
central ohio
Hello I looked at a large number of Norway spruce and a few white pine that were affected by imprelis some are going to be remove but the majority are in pretty good shape some signs though. What can I do to help keep them healthy? I own the arbor jet systems so preferably some thing I could inject but I can do other measures if needed, maybe a good excuse to but some more PHC tools thanks for any help!
 
Here are some resources for Imprelis information. If you have further questions, I'm told the U. of MN and Michigan State are good sources of information. I'm sure Ohio State also has good information.

Give Ohio State's Plant Clinic a call and they'll probably be able to give you advice over the phone:
http://ppdc.osu.edu/

Michigan:
http://msue.anr.msu.edu/news/tree_damage_from_imprelis_one_year_later

Purdue:
http://www.ppdl.purdue.edu/PPDL/pubs/briefs/ImprelisLCO.pdf

Penn State:
http://extension.psu.edu/greenindustry/news/2012/imprelis-damage-continues-in-2012

MN Dept of Ag:
http://www.mda.state.mn.us/chemicals/pesticides/imprelis.aspx

Minnesota:
http://blog.lib.umn.edu/efans/ygnews/2012/05/an-imprelis-update.html
 
thanks guys, has any one tried to treat any trees that were affected? most of the university studies did not really say what would help the stressed trees. im thinking mabey vertical mulching to help promote root growth, hopefully the levels are low enought being that its been over a year now.
 
We fertilized some younger spruce trees that were not totally decimated by it(this spring should be the tell tale story of whether it was a worthwhile endeavor or not)using PHC Bio Pak Plus which is mainly a root stimulant with trace minerals. Anything to stimulate root growth really is the key...

From my observations in the field though, a great majority of the affected trees are goners.
knockout.gif
 
Thanks ill give that a try! I feel like I have to Do some thing since the imprelis adjustor told the home owners that the majority of the trees need "tree care" yet I contact DuPont and they say they don't know what will benifit the trees, I was concerned that promoting root growth may cause the tree to absorbe more imprelis if there's still traces in the ground. Would you suggest using an air spade then applying the PHC bio pac plus? Thanks Arbor enhance
 
I'd watch out with fertilizer, several of those references say to not add fertilizer. I can imagine the reasons are 1) as you mentioned that new roots may absorb more, but 2) if the tree is already lacking roots and you give it nitrogen, it could fry out because it wants to put on canopy growth without a root system healthy or big enough to be able to support it.

Most of the references say to 'reduce stress', which is a great general statement, I know. I wonder if doing a growth regulator (ex. paclobutrazol) treatment would help?
 
PHC Bio Pak Plus has very, very little nitrogen, and has been an effective treatment with many different varieties of stressed trees. Especially in ones that have fungal issues(i.e. Tubakia, rhizospharea, dothistroma) since ferts containing higher amounts of nitrogen exacerbate fungal blights. Imprelis related "treatments" are still a work in progress.

In my personal case of the dozens of trees I treated last spring/fall, I haven't gotten a chance to see the results firsthand. This growing year should yield some interesting findings about Imprelis damage and subsequent recovery.


Here is the info on the product.

http://natseed.com/pdf/PHC_BioPakPlus_Spec.pdf
 
Oh, in regards to using an air spade prior to application, I can't really say in all honesty if that would be a good thing or not. This is new territory for all of us(I assume)in regards to Imprelis.
 
Arbor Enhance, do you inject the biopacplus into the soil or just do a soil drench? I have a lot of experience with Arborjet truck injections but that's about the extent of my THC
 
Soil injection 4" deep. Grid pattern spaced 14-18 inches out to the drip line. 120-140 psi. 4lbs/100gal ratio.

Soil drench is good for newer plantings, but soil injection gets a better effective treatment on established trees from my experience.
 
You must log in or register to reply here.

New threads New posts

Kask Stihl NORTHEASTERN Arborists Wesspur TreeStuff.com Teufelberger Westminster X-Rigging Teufelberger
Back
Top Bottom