Ahrens Arbor Care LLC

12/01/2025

Tis the season for PRUNING 🪚, Especially Oaks and Elms! Pruning these species of trees is best done in the dormant season to reduce the spread and infection of diseases like Oak Wilt, Bur Oak Blight, and Dutch Elm Disease. Also remember that new varieties of Elm's are RESISTANT, not IMMUNE to Dutch Elm Disease. It is good practice to err on the side of caution and have your Elm's pruned while dormant. You don't want those years invested into your trees to be spent on a simple mistake.

Give us a call to help with any and all of your pruning needs! 507-840-0601

MERRY CHRISTMAS! ☃️🎄🪚

Got oaks?

Now is the best time to prune them!

The trees are in dormancy and it’s an easier time to see branch structure – plus, pruning now avoids the risk of oak wilt infection.

Oak wilt is a non-native fungal disease that can be deadly to all oak species. It is spread by sap-feeding beetles that become active in warm weather. These tiny beetles are attracted to fresh wounds on trees (like those made from pruning) and can carry oak wilt spores with them from infected trees.

You can help stop the spread of oak wilt in Minnesota! Protect your oaks by pruning or cutting now. And please don’t prune between April - July, when risk of spread is highest.

Learn more at https://ow.ly/3fxj50XztTk.

10/29/2025

10/29/2025

What a fun afternoon planting 🌳! Thank you to the City of St. James for having us out to teach about Emerald Ash Borer and treatment options. The city is doing great things for teaching the kids about planting trees, and taking initiative in growing and diversifying our urban canopy in the wake of Emerald Ash Borer.

07/16/2025

We have added an exciting and important tool to our Plant Health Care arsenal, the Air Spade! This tool uses compressed air to safely remove built up dirt from around tree roots. Exposing tree root flares mitigates early onset of root and trunk rot and allows for the removal of girdling roots that will lead to premature decline by choking off water and nutrient supply to the tree.

If your trees canopy is declining or you suspect that there may be girdling roots, give Ahrens Arbor Care a call for a free estimate to get to the root of the issue!

Air Spade uses include:
- Root collar excavation
- Root pruning
- Soil aeration and decompaction
- Radial trenching
- Vertical mulching
- Root and trunk rot mitigation
- Tree health diagnosis
- Trenching for construction to identify and reduce root damage

Shout-out and special thank you to Kellner Photography for the awesome pictures!

07/04/2025

Happy 4th of July from the Ahrens Arbor Care family! Enjoy and celebrate! 🇺🇸🦅

06/27/2025

TREES, TREES, and....you guessed it, more TREES! This summer we are planting an additional 94 trees for the City of Welcome who are showing great initiative in re-establishing their urban canopy following the loss of their Ash trees. Welcome is prioritizing diversity and longevity with a wide range of tree species. Thank you for being a leader in the re-forestation efforts of the Midwest and partnering with us at Ahrens Arbor Care to tackle this project!

06/11/2025

7 declining Maple trees removed! These trees were reaching the end of their life cycle and were losing large limbs causing safety concerns.

06/07/2025

06/07/2025

Another poorly placed tree removed, allowing this client to transform their yard!

06/07/2025

We planted these beautiful, Minnesota native Ninebark to slow the wind and snow once they get established. 🤩🌱

06/05/2025

These 3 Ash trees were too close to these buildings. Removed and cleaned up in no time!