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When should I treat for cedar apple rust?

Answered for Indianapolis, Marion County.

Common wherever red cedar has colonised a fence line near apples — which in rural Hendricks and Boone counties is nearly everywhere. In Indianapolis, in Indiana DNR's 2008 statewide i-Tree STRATUM sample inventory, silver maple was the most common street tree in Indianapolis at 14.0% of 119,036 inventoried street trees, followed by sugar maple 6.0%, hackberry 5.1%, apple 4.9% and white ash 4.9% — that ash share is a pre-EAB-collapse figure and is effectively gone since emerald ash borer was confirmed in Indiana on April 21, 2004. The big silver maples over the 1920s-50s streets are the recurring job: included bark, codominant leaders and brittle wood that sheds limbs in every wind event. Disfiguring rather than deadly.

Indianapolis's canopy and what's at risk

In Indiana DNR's 2008 statewide i-Tree STRATUM sample inventory, silver maple was the most common street tree in Indianapolis at 14.0% of 119,036 inventoried street trees, followed by sugar maple 6.0%, hackberry 5.1%, apple 4.9% and white ash 4.9% — that ash share is a pre-EAB-collapse figure and is effectively gone since emerald ash borer was confirmed in Indiana on April 21, 2004. The big silver maples over the 1920s-50s streets are the recurring job: included bark, codominant leaders and brittle wood that sheds limbs in every wind event.

What to look for

Orange gelatinous horns on cedar in spring; orange spots on apple and crabapple leaves.

Whether the tree can be saved

Disfiguring rather than deadly. It matters most to orchards and to anyone who wants a clean crabapple.

Timing in Marion County

Fungicide on the apple side at bud break, or remove the cedars within a few hundred feet.

Crews near Indianapolis

Sorted by distance

A1treeboyz of Indiana

1401 Lindley Ave, Indianapolis, IN 46241

No Google reviews yet
  • Tree Removal
  • Tree Trimming
  • Emergency Tree Service
  • +1

Listed on Google but not yet reviewed there. Ask them for recent local references when they call.

Listed direct: (317) 513-2407
4 Seasons Tree Service LLC, photo 1 of 3

4 Seasons Tree Service LLC

1360 E 30th St, Indianapolis, IN 46205

5.040
  • Tree Removal
  • Tree Trimming
  • Stump Grinding
  • +2

I had asked multiple tree companies to remove a partially fallen Ash tree that was lodged in between an adjacent tree. No company would touch it…

Jeff C. Indianapolis · 4 months ago · Google
Dave's Tree and Lawn, photo 1 of 3Photo author: Jessica Muldoon

Dave's Tree and Lawn

1138 S Drexel Ave, Indianapolis, IN 46203

4.916
  • Tree Removal
  • Tree Trimming
  • Stump Grinding
  • +1

Dave and his friendly crew cut down 4 trees, trimmed/thinned 7 more in 2 days! Great communication, quick response time, great price compared to…

Jon Caudle · a month ago · Google
Lulos Tree Service, Llc, photo 1 of 3

Lulos Tree Service, Llc

820 S Roena St, Indianapolis, IN 46241

5.015
  • Tree Removal
  • Tree Trimming
  • Stump Grinding
  • +2

Once again, Benito and his crew went above and beyond! We have used them twice for both tree removals and trimming/shaping. They are so professional…

Jenny Rollins · 2 years ago · Google
Nova Tree Care, photo 1 of 3

Nova Tree Care

4180 N Keystone Ave, Indianapolis, IN 46205

5.0193
  • Tree Removal
  • Tree Trimming
  • Stump Grinding
  • +3

We are absolutely thrilled with the work Brad and Nova Tree Care did on 3 of our backyard trees. Probably the best experience, and price, we’ve had…

Kathryn DeCloedt · 3 months ago · Google
A Tree's Worth Tree Care, photo 1 of 3

A Tree's Worth Tree Care

2213 E 45th St, Indianapolis, IN 46205

5.0109
  • Tree Removal
  • Tree Trimming
  • Stump Grinding
  • +2

I highly recommend A Tree’s Worth this company did an awesome job cutting down a large tree in my front yard. My first point of contact was with Sal…

Jacque Green · 4 months ago · Google

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