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Trees/blue spruce trees

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Question
We have a large grove of blue spruce trees that are probably around 18 foot tall.  While spraying the pasture which is inside the grove we had some 2-4-D drift on the trees some of the foliage looks wilted and some is brown did we kill our trees hope not

Answer
2-4-D is a growth regulator and will cause we needles and shoots to curl, brown and buds to drop.  Needles may also brown and if they received a lot of exposure may drop.  Trees exposed however will normally recover.  The Blue spruce, as well as other conifers are most sensitive in the spring when growing rapidly and new shoots are being formed.  

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Robin Wells

Expertise

Most of my experience is in urban forestry and landscape environment. Questions related to tree identification, tree diseases or insect related problems, soil related issues or soil science, pruning techniques or practices, pesticide related questions, fertilization of trees or shrubs, tree support systems (cabling or bracing), tree planting, tree watering needs or tree risk assessment/management, although insect related we also have a specific area dealing with the emerald ash borer.

Experience

30 years work in urban forestry. Bachelor degree in forestry. ISA Certified Arborist. ISA Certified Tree Risk Assessor. Consulting Arborist. Ontario licensed pesticide applicator.

Organizations
ISA Intrenational ISA Ontario Ontario Commercial Arborist Association Tree Care Industry Association American Society of Consulting Arborists

Publications
Midland Mirror ( newspaper )

Education/Credentials
Bachelor degree in forestry. Many other post university seminars and courses in Aboriculture.

Past/Present Clients
Various commercial, residential, municipal, real estate and legal clients. Typically do not list the names.

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