Identification and Management of Japanese Chaff Flower

Identification and Management of Japanese Chaff Flower

Japanese chaff flower (Achyranthes japonica) is a highly invasive, non-native, perennial plant in the Amaranth family. This article discusses distribution and management of this non-native plant.

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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

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Integration of prescribed burning, aminopyralid (Milestone® herbicide) and reseeding for restoration of yellow starthistle-infested rangeland

Integration of prescribed burning, aminopyralid (Milestone® herbicide) and reseeding for restoration of yellow starthistle-infested rangeland

Guy B. Kyser, Arthur W. Hazebrook and Joe DiTomaso (2013-in press) Invasive Plant Science and Management (DOI: 10.1614/IPSM-D-12-00094.1, http://pinnacle.allenpress.com/doi/abs/10.1614/IPSM-D-12-00094.1) 

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Integrated Management of Yellow Starthistle with Burning, Aminopyralid (Milestone® herbicide), and Revegetation

Integrated Management of Yellow Starthistle with Burning, Aminopyralid (Milestone® herbicide), and Revegetation

A summary of research presented as a poster–Integrated Management of Yellow Starthistle with Burning, Aminopyralid (Milestone), and Revegetation–at the Western Society of Weed Science Annual Meeting, Reno, NV 2012 by Guy B. Kyser,  Arthur W. Hazebrook, and Joe DiTomaso.

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Controlling Invasive Weeds in the Fall

Controlling Invasive Weeds in the Fall

Fall rain and cooler temperatures provide good conditions for extending the herbicide application season. The following species and many others can be effectively controlled in the fall. Follow the links for control recommendations for each species.

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Research and Management Tips for Controlling Yellow Starthistle

Research and Management Tips for Controlling Yellow Starthistle

This TechNote summarizes research on: 1) Integrating herbicides with other methods for managing yellow starthistle and 2) Controlling coast fiddleneck (Amsinckia menziesii)and yellow starthistle. Also included are practical management tips on herbicide rate and time of application to optimize yellow starthistle control.

 

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Yellow Starthistle Management with Herbicide

Yellow Starthistle Management with Herbicide

Herbicides play an important role in integrated management of yellow starthistle and can be used alone or in combination with other techniques such as timely mowing, grazing, burning, or use of biological control insects.

 

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Cleaning and Winterizing Herbicide Application Equipment

Cleaning and Winterizing Herbicide Application Equipment

Practical guidelines for cleaning and winterizing your truck-mounted, ATV, or backpack sprayers. 
Proper cleaning and winterization of herbicide application equipment is important to ensure safe storage over the winter. Spending a little extra time in the fall will save you time and money next spray season!

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Managing Invasive Blackberry with Fall-Applied Herbicides

Managing Invasive Blackberry with Fall-Applied Herbicides

The USDA Plants database lists more than 20 Rubus species (and associated hybrids) that were introduced to North America. Himalayan blackberry (Rubus armeniacus) and cutleaf blackberry (Rubus laciniatus) are the two most widespread of the invasive blackberry species.

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Fall Herbicide Applications to Control Key Invasive Weeds

Fall Herbicide Applications to Control Key Invasive Weeds

Fall is an excellent time to control invasive weeds with Milestone. Late summer and fall rains in many areas of the Central Plains and the West will provide land managers with a good opportunity to extend their application season.

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Tips for Managing Undesirable Brush and Vines in Fall, Winter, and Early Spring

Tips for Managing Undesirable Brush and Vines in Fall, Winter, and Early Spring

Undesirable or invasive woody vegetation threatens the biology and ecology of prairie grasslands and native woodlands. Removing invading woody species can be accomplished year-long, with fall, winter and early spring herbicide applications, extending your vegetation management efforts.

 

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Identification and Management of Three Toxic Plants in the Carrot Family

Identification and Management of Three Toxic Plants in the Carrot Family

Plants in the carrot (Apiaceae) family share the characteristic of an umbel-shaped flower head. The family includes hundreds of plants, some that are valuable vegetables and herbs, and a few that are masters in chemical warfare. Accurate identification is important for management and avoiding accidental poisoning. This article reviews distribution, identification and management of three invasive, toxic plants in the carrot family: poison hemlock (Conium maculatum), wild parsnip (Pastinaca sativa), and giant hogweed (Heracleum mantegazzianum).

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What's the Most Poisonous Plant in North America?

What's the Most Poisonous Plant in North America?

The carrot (Apiaceae) family comprises 434 genera and about 3,700 species and is characterized by a flat-topped flower cluster, called an umbel. Water hemlock (Cicuta), one of several toxic members of this family, is considered to be the most toxic plant in North America. There are four species of water hemlock in North America, all highly poisonous and native to North America: spotted (C. maculata), western (C. douglasii), bulblet-bearing (C. bulbifera), and Mackenzie’s (C. virosa).

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Understanding and Minimizing Impacts of Delaying Rights-of-Way Maintenance

Understanding and Minimizing Impacts of Delaying Rights-of-Way Maintenance

Managing incompatible woody vegetation along utility and transportation rights-of-way (ROW) requires careful planning, consistent budgets, and judicious allocation of time and resources. When budgets or resources are inadequate, planned vegetation maintenance may be postponed to the following growing season or beyond. While delaying maintenance for even one year allows woody vegetation to increase in density and height, the actual increase in time and material to control the vegetation after one or more years of delayed treatment has not been determined.

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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. 

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Canada Thistle Management with Herbicides

Canada Thistle Management with Herbicides
Canada thistle (Cirsium arvense) is a perennial plant with extensive spreading roots that rapidly forms dense colonies. Vegetative shoots arise from adventitious buds located on Canada thistle roots. Canada thistle also spreads by seed; each shoot can produce more than 1,000 seeds. Plants grow from 1 to 4 feet tall and have spiny, lance-shaped leaves. Purple, lavender, or sometimes white flower heads typically appear from June to October. Read More

Spotted Knapweed Management with Herbicides

Spotted Knapweed Management with Herbicides

Spotted knapweed (Centaurea stoebe) is a tap-rooted perennial forb that spreads by seed. Seedlings and mature plants over-winter in a rosette stage and resume growth in early April. Spotted knapweed blooms from mid to late July through mid September.

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Managing Russian knapweed (Acroptilon repens)

Managing Russian knapweed (Acroptilon repens)

Russian knapweed is a deep-rooted, herbaceous perennial that spreads by seed and vegetative root buds. This article summarizes the effect of various herbicides and application timing on Russian knapweed control.

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