Tag Archives: invasive

Testing Herbicide Options for Dahurian Lespedeza Control

With the goal of analyzing which herbicides are effective at treating Dahurian lezpedeza, Invasive Species Researcher, Clara Barton conducts field tests. She tests Garlon 3A, Milestone, and Journey to help inform future management decisions. Continue reading

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Testing Follow-Up Treatments for Honeysuckle Resprouts

Basal bark treatment is one of the most effective methods for controlling invasive Amur honeysuckle, but it is not unusual to find treated shrubs that continue producing living shoots for weeks or even months after treatment. Should these plants be left alone to die from the original treatment? Or should they be sprayed with a follow up treatment? During the summer of 2026, I tested two follow-up herbicide treatments on surviving honeysuckle resprouts to determine whether additional treatment could improve control and reduce the risk of long-term survival. Continue reading

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Does Yellow Sweet Clover Resprout After Mowing?

Does yellow sweet clover resprout after mowing? The short answer is yes, but the story doesn’t end there. By tracking mowed plants at Nachusa Grasslands throughout the summer, this project found that early regrowth did not lead to long-term survival, offering practical insights on the effectiveness of mowing. Continue reading

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Comparison of Transline and Milestone-Based Treatment for Birdsfoot Trefoil Control

Invasive Species Researcher Clara Barton sets out to determine which herbicide treatment is most effective for treating Birdsfoot Trefoil. Continue reading

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Comparing Herbicide Treatments for Bouncing Bet in a Grassland Restoration

A small field trial at Nachusa Grasslands found that adding a surfactant dramatically improved the effectiveness of Telar XP when treating bouncing bet (Saponaria officinalis). While both Crossbow and Telar XP plus surfactant provided strong short-term control, continued monitoring will determine which treatment offers the best long-term suppression of this rhizomatous invasive plant. Continue reading

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Tall Goldenrod Management Study

Year-Three Results – August 2025 By: Karen Glennemeier – Habitat Research LLC and Jeff Weiss – Living Lands Conservation Company Tall goldenrod (Solidago altissima) has become one of our most aggressive invasive species, especially in newly-opened woodlands and young prairie … Continue reading

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The Agony and the Ecstasy of a First Year Prairie

By: Mike Saxton – Manager of Ecological Restoration and Land Stewardship at Shaw Nature Reserve – a division of the Missouri Botanical Garden – Gray Summit, MO There are few acts more hopeful than planting prairie. We put so much … Continue reading

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Herbicide Treatments to Reed Canary Grass – Clethodim vs. Glyphosate – Follow-Up Observations

By: Julianne Mason, Restoration Program Coordinator, Forest Preserve District of Will County Five years ago, my coworker and I put in some test plots to compare the effectiveness of spraying reed canary grass with glyphosate, a non-selective herbicide, compared to … Continue reading

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A SURGICAL APPROACH TO PHRAGMITES CONTROL

by Bryon Walters Phragmites australis, Common or Giant Reed, can be a very problematic invasive in wetlands and wet prairies. If left unchecked, it can form large monoculture, impenetrable jungles 6-10’ high. Usually nothing else will grow under the dense … Continue reading

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Sweet clover control

By Bill Kleiman, Nachusa Grasslands, TNC In Nebraska, Chris Helzer of TNC, does no or little work against sweet clover.  Perhaps Nebraska is  dry enough that yellow and white sweet clover (Melilotus officinalis and M alba) are there but not … Continue reading

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