Bad New's For Ash Tree's

[Mike Nelson]

Found this article in our local paper on some success that the city of Naperville Illinois is having.

http://napervillesun.suntimes.com/mo...e-success.html
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[Duekster]

I think Arbor-jet also has the Azadirachtin based treatment.

[agrostis]

Originally Posted by fire126

We have been injecting Trees with Tre-age using Arborjet system. The insecticide is exspensive, but only treating some trees. About 275. Tre-age has had great results and is protecting the tree for 2-3 years.

That tre-age is expensive, $600 for a liter. How much of that stuff would you use for a preventative treatment with 18" DBH ash ?

[fire126]

For a 18" DBH you would use 80ml of Tre-age with equal amount of water. Around here its about $500 a liter and you save if you buy a case.