Medusahead Seed Suppression with Spring Application of Milestone® Herbicide

Medusahead Seed Suppression with Spring Application of Milestone® Herbicide

The effectiveness of spring-applied Milestone® specialty herbicide in controlling medusahead seed production was tested in northern California. Read about the effectiveness of controlling this invasive grass with selective herbicides.

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Dolores River Restoration Partnership

Dolores River Restoration Partnership

In 2009 a coalition of concerned individuals and agencies took action to restore about 175 miles of riparian habitat along the Dolores River between McPhee Reservoir and its confluence with the Colorado River just north of Moab, Utah. 

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Are Drones in Your Future?

Are Drones in Your Future?

New technology for treating invasive plants in inaccessible areas—Engineering firms specializing in mobile robotic systems have developed multirotor drones (Unmanned Aerial Vehicle- UAV) complete with a lightweight spray system that can be used for a variety of agricultural applications. 

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Sustainable Management of Non-Native Thistles on Colorado’s Western Slope

Sustainable Management of Non-Native Thistles on Colorado’s Western Slope

A research project was initiated on a 10,670-acre ranch near Cimmarron, Colorado to develop sustainable management strategies for musk and Canada thistle. Objectives of the study were three-fold: 1) Investigate invasive thistle distribution through geospatial analysis; 2) determine effects of musk thistle management on forage quality and native plant diversity; and 3) develop a sustainable invasive plant management plan for the ranch.

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Tamarisk Coalition Unites Partners in Watershed-Scale Restoration

Tamarisk Coalition Unites Partners in Watershed-Scale Restoration

Along the Colorado River near Grand Junction, a group of river guides, biologists, concerned citizens, and conservationists gather for an annual float trip to observe riparian restoration efforts. Rusty Lloyd, program director for the Tamarisk Coalition, and others in this group share concerns about the health of the Colorado and other rivers in the West.

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Effect of Aerial Herbicide Treatments on Russian Olive Control

Effect of Aerial Herbicide Treatments on Russian Olive Control

Historical management of Russian olive includes mechanical cutting, mowing or shredding followed by herbicide treatments. However, there was limited data on the effectiveness of aerial application of triclopyr ester (Remedy® Ultra) or amine (Garlon® 3A) applied alone and in combination with Milestone® specialty herbicide on Russian olive.  Research methods and results from a study conducted in northcentral Montana are described within this article.

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Patience is Key to Controlling Cholla with Herbicides

Patience is Key to Controlling Cholla with Herbicides

Cholla (Cylindropuntia imbricata) often becomes problematic on rangeland when desirable grasses are depleted by drought or over-utilization. The effectiveness of various management methods are discussed including hand and mechanical removal, herbicide rates and  mixing guidelines, and management considerations for using herbicides to optimize cholla control. 

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Synthetic Auxin Herbicides Control Germinating Scotch Broom

Synthetic Auxin Herbicides Control Germinating Scotch Broom

A variety of fire, herbicide, and mechanical treatments are effective for controlling established Scotch broom. However, observations regarding effectiveness of soil-active herbicides in controlling germinating seedlings of Scotch broom are limited. Researchers conducted a series of studies in growth chambers beginning in 2010 to compare the effectiveness of three soil-active auxin herbicides: aminopyralid (Milestone® specialty herbicide), clopyralid (Transline® specialty herbicide) and aminocyclopyrachlor for controlling Scotch broom seedling germination. 

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Logging Debris and Herbicide Treatments for Controlling Scotch Broom

Logging Debris and Herbicide Treatments for Controlling Scotch Broom

Researchers conducted a study near Matlock, Washington investigating the potential of logging debris and herbicide combinations to inhibit germination and development of Scotch broom (Cytisus scoparius) seedlings. The study site was a mature Douglas-fir forest that was scheduled for harvest. The forest understory included occasional Scotch broom plants that invaded from a previous disturbance, indicating the likely presence of soil-stored seed. 

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Celebrating the Centennial: Volunteers Unite in Glacier National Park Weed BioBlitz

Celebrating the Centennial: Volunteers Unite in Glacier National Park Weed BioBlitz

More than 90 volunteers gathered in July to be trained on noxious weed identification, monitoring and control in Glacier National Park as part of the Weed BioBlitz. Participants included volunteer youth and adults from Montana, Wyoming and Idaho.

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Professionals Review Herbicide Spray Nozzles

Professionals Review Herbicide Spray Nozzles

We asked 13 invasive plant management professionals to provide insight and tips on nozzle selection and maintenance based on their field experience. See what the professionals suggest for type and size of nozzles for backpack and ATV/UTV or truck-mounted sprayers, supplemental equipment, and best practices for calibrating, maintaining, and replacing nozzles.

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Early Detection and Control Stops Purple Starthistle Spread in Idaho

Early Detection and Control Stops Purple Starthistle Spread in Idaho

Purple starthistle (Centaurea calcitrapa) is established in at least 14 states in the U.S., but recently expanded its range to Twin Falls County, Idaho. A quick response from the land owner, field inspector, county weed coordinator, and Idaho State Department of Agriculture is stopping the weed in its tracks. 

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Partnership protects greater sage-grouse habitat from invasive plants

Partnership protects greater sage-grouse habitat from invasive plants

FREMONT COUNTY WEED AND PEST CONTROL DISTRICT AND THE U.S. BUREAU OF LAND MANAGEMENT (BLM) TEAMED UP WITH THE WYOMING GAME AND FISH DEPARTMENT
and others to keep invasive plants out of greater sage-grouse (Centrocercus urophasianus) habitat.

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Are Fall Herbicide Applications Effective on Perennial Invasive Plants?

Are Fall Herbicide Applications Effective on Perennial Invasive Plants?

Each year Techline receives questions from readers about treating broadleaf perennial weeds in the fall—including whether it is an effective application timing, what weeds are most susceptible to fall herbicide treatments and WHY? We interviewed seven weed scientists who work in natural areas about their research results and thoughts regarding fall application timing for perennial invasive plant control. 

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Mapping invasive plants using a helmet based video system

Mapping invasive plants using a helmet based video system

Infested acreage and the time required to estimate it were compared for two inventory methods: a traditional method of mapping on foot with handheld GPS units versus an experimental method of recording video of infestations while riding a mountain bike.

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