Identification & Management of Purple Loosestrife

Identification & Management of Purple Loosestrife

Purple loosestrife (Lythrum salicaria L.) is a perennial, rhizomatous forb that invades riparian areas and other waterways throughout most of the U.S. and southern Canada  The invasive plant threatens biodiversity of wetlands. Successful management requires integrating various management methods.

Read More

Controlling Invasive Plants in Fall and Early Winter

Controlling Invasive Plants in Fall and Early Winter

Fall is an excellent time to control invasive weeds with herbicides. Late summer and fall rains provide land managers with a good opportunity to extend their application season. 

Read More

Long-term Control of Crown Vetch at a Wisconsin Wildlife Refuge

Long-term Control of Crown Vetch at a Wisconsin Wildlife Refuge

This article reviews results of field trials conducted on a crown vetch infestation in the Upper Mississippi River National Wildlife and Fish Refuge in Wisconsin. Eight years following herbicide application control remained greater than 85%.

Read More

Managing Cocklebur in Natural Areas

Managing Cocklebur in Natural Areas

Common or “rough” cocklebur (Xanthium strumarium L.) is a native, tap rooted, annual broadleaf weed. The plant is a prolific seed producer that spreads easily because of its bur-like seed head. Management of the plant is described.

Read More

Managing Scotch Thistle on Rangeland and Natural Areas

Managing Scotch Thistle  on Rangeland and Natural Areas

Scotch thistle (Onopordum acanthium) is a robust non-native plant well established throughout much of the United States and Canada. Severe infestations can form tall, dense stands that impede livestock and wildlife access to desirable forage plants, impacting wildlife habitat and limiting carrying capacity of infested rangeland and natural areas.

Read More

SALTCEDAR AND RUSSIAN OLIVE CONTROL WITH AMINOPYRALID CONTAINING HERBICIDE TREATMENTS

SALTCEDAR AND RUSSIAN OLIVE CONTROL WITH AMINOPYRALID CONTAINING HERBICIDE TREATMENTS

An article by Byron Sleugh, Mary Halstvedt, Chad Cummings, Vanelle Peterson, Dow AgroSciences, Indianapolis, IN; and Robert G. Wilson, University of Nebraska Panhandle Research Center, Scottsbluff, NE from 2010 Western Society of Weed Science Proceedings.

 

Read More

Proper Application Timing Maximizes Invasive Plant Control with Milestone® Herbicide

Proper Application Timing Maximizes Invasive Plant Control with Milestone® Herbicide

Recommendations for treating Canada thistle, Russian knapweed, biennial thistles, and spotted and diffuse knapweed in the spring.

Read More

Saltcedar and Russian Olive Management

Saltcedar and Russian Olive Management

Saltcedar (Tamarix ramosissima, T. pentandra, T. chinensis, and T. parviflora) and Russian olive (Elaeagnus angustifolia L.) are rapid growing, non-native deciduous trees that were introduced into the United States for erosion control (saltcedar), windbreaks (Russian olive) or as ornamental plantings.

Read More

Control of Yellow Starthistle (Centaurea solstitialis) and Coast Fiddleneck (Amsinckia menziesii) with Aminopyralid (Milestone® herbicide)

Control of Yellow Starthistle (Centaurea solstitialis) and Coast Fiddleneck (Amsinckia menziesii) with Aminopyralid (Milestone® herbicide)

Guy B. Kyser, Vanelle Peterson, Steve B. Orloff, Steven D. Wright, Joseph M. DiTomaso (2011). Invasive Plant Science and Management: July-September, Vol. 4, No. 3, pp. 341-348. http://wssajournals.org/doi/abs/10.1614/IPSM-D-11-00002.1

Read More

Managing Invasive Nightshades (Horsenettles) in Natural Areas and Pastures

Managing Invasive Nightshades (Horsenettles) in Natural Areas and Pastures

Silverleaf nightshade (Solanum elaeagnifolium) and Carolina horsenettle (Solanum carolinense), also known as horse nettle or bull nettle, are deep-rooted, herbaceous, perennial plants in the nightshade family. Article discusses distribution and management of the two invasive nightshades

Read More

Identification and Management of Absinth Wormwood

Identification and Management of Absinth Wormwood

Absinth wormwood (Artemisia absinthium L.) is a perennial broadleaf plant introduced as an ornamental into North America from Europe in 1841. The plant escaped cultivation and is now widely distributed in the U.S. and Canada. This article describes the biology, ecology, identification, and management of absinth wormwood in natural areas.

Read More

Native Grass Establishment Following Herbicide Applications

Native Grass Establishment Following Herbicide Applications

Herbicides are an important tool for removing noxious or invasive weeds from plant communities, allowing desirable vegetation to respond. Field research trials were established to determine if warm and cool season grasses could be planted either in late autumn as a dormant fall planting or in the spring after a September application of herbicide.

Read More

Herbicide Application Timing Critical to Control Exotic Hawkweeds

Herbicide Application Timing Critical to Control Exotic Hawkweeds

This article summarizes field studies established on meadow hawkweed at two sites near Santa, Idaho by Dr. Tim Prather, University of Idaho. Selective herbicides such as Milestone® herbicide have shown to control hawkweeds and release grasses and desirable native forbs. Strategically timed herbicide applications can improve hawkweed control and promote establishment and maintenance of grass cover.


Read More