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)Read More
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.Read More
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.Read More
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.
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.
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!
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.Read More
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.Read More
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.
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.Read More
Dr. Joe DiTomaso and Guy Kyser of the UC Weed Research and Information Center (WRIC) present a 30-minute, six-part educational video on how to properly calibrate and apply herbicides in rangeland or wild land settings to avoid over application and still achieve effective control of target species.
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.Read More
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.Read More
Yellow sweetclover (Melilotus officinalis) and white sweetclover (M. alba) are herbaceous, non-native legumes that are widely distributed in the United States. Learn about the biology, ecology, and management recommendations for sweetclover.
Photo by Elizabeth Bella, USDA Forest Service, Bugwood.orgRead More
Common (European) buckthorn (Rhamnus cathartica) and glossy buckthorn (Frangula alnus[Rhamnus frangula]) are non-native, deciduous, woody shrubs or small trees introduced to North America during the 1800s. This article describes the effectiveness of various management methods.Read More
Choosing the right herbicide to fit your vegetation management objectives is an important decision. Herbicides are classified in a number of ways based on how they are used and their selectivity on different plant families.Read More