Tree13-200x240_medium trees for energy conservation

The Urban Forestry and Energy Conservation group serves as a source of research-based information for businesses, developers, communities, educators, and the general public. Specifically, we strive to be a trusted provider of expertise and educational material in support of utilizing trees to maximize potential energy savings. We will provide education and tools to help those interested interested in taking action to save energy through trees and urban forestry methods. 

(This group currently has 4 experts available to answer questions)

Questions asked to this group

I have root rot at the base of my shag bark Hickory. It was infested with...

I have root rot at the base of my shag bark Hickory. It was infested with ants but I have destroyed these. Can I now spray with Agri-Fos systemic fungicide and the fiil the cavity with cement? Thanks for you help.

Greene County TN trees and shrubs disease issues horticulture Posted over 4 years ago

I planted cedar, trunk and branches become black. How can I control the...

I planted cedar, trunk and branches become black. How can I control the problem? Thank you in advance.

OUTSIDEUS trees and shrubs tree care tree diseases Posted almost 5 years ago

I have a 12-15 year old catalpa tree that had over half of the tree not...

I have a 12-15 year old catalpa tree that had over half of the tree not return to life this year. It is in the center of my lawn with part shade from 4 very large white pine trees, very moist, well drained soil, and the dead-looking part of the tree is on the east side. I fertilized it in the fall as usual with aluminum sulfate and gypsum but have done that for serveral years. The only thing different is that I propogated many of the seed pods in the spring before budding started. I have photos attached. Could this have damaged the tree in some way?

Windham County VT trees and shrubs Posted almost 5 years ago

Linden has sparse new foliage

My 10 year old linden failed to shed the majority of its leaves this past winter and it is now July and I still have only sparse amounts of green leaves. The rest are all brown and shrivelled up. As new leaves come in the old ones fall off. However this is the first time I've ever seen this. Any advice?

OUTSIDEUS trees and shrubs horticulture Posted almost 5 years ago

Its early june,my adult ash trees leaves are falling like rain. The leaves...

Its early june,my adult ash trees leaves are falling like rain. The leaves are green but along the vain is an orange colored capsule shaped what looks like an egg sack.Breaking it open shows no larve that I was expecting. Our local tree guy doesn`t know. I can`t seem to find anything close. The tree never did that before. Thanks, Joe Vecchione

Mercer County NJ trees and shrubs horticulture Posted almost 5 years ago

Blue Atlas Cedar 100% Brown

Hello, Our gorgeous 15' blue atlas turned completely brown this winter. We live in the most Southern part of Ontario and our winter this past year was the worst in over 100 years. We want to know if you precious tree is dead? The branches are not brittle. Looking forward to your opinion. Thank you for your help.

Outside United States trees and shrubs blue atlas Posted about 5 years ago

Leyland Cypress Problems

Our 10 year old Leyland Cypress trees are turning brown on the inside and in patches on the outside. In the past, when I've seen yellowing to brown patches of needles, I was told to sprinkle a little ammonium nitrate around the base. They always seemed to perk up after that. I heard that a University of Tennessee Extension expert was on our local station recently discussing this, but I missed what he said. Can you tell me what's wrong and how to fix them?

Anderson County Tennessee trees and shrubs horticulture Posted about 5 years ago