- Author: Mark E Lundy
If you're planning to attend the World Ag Exp in Tulare this week, be sure to stop by Seminar Trailer 2 between 1-3 PM on Tuesday and Wednesday to catch the UC Dairy Series.
Talks will include presentations on water and nutrient management for forage crops (full agenda here), including information about maximizing water productivity from winter cereals in the face of increasing drought and regulations on water use. This "Water-wise Dairying" session will take place...
- Author: Mark E Lundy
We're off to a good start to the rainfall year! As farmers begin to turn attention to fall-planted small grains, be sure to check out UC's extension resources on the UC Small Grains Research and Information Center and the associated UC Small Grains Blog. Resources include the following:
The California Weather Web-Tool provides site-specific precipitation and temperature data for customizable date ranges and includes 10-year averages and a 10-day forecast. Read...
- Author: Mark E Lundy
- Author: Taylor Nelsen
- Author: Nicholas Clark
- Author: Michelle Leinfelder-Miles
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UC Davis and UC Cooperative Extension are excited to share newly developed tools that optimize nitrogen (N) fertilizer management in wheat and other small grains. The new tools and case studies illustrating how they've been applied in commercial settings will be discussed at an upcoming webinar on 11/4/2021 from 2-4 PM (2 INMP/CURES CEU credits available for those who REGISTER).
These tools are the product of many years of UC research and include an interactive website that provides customized, site-specific nitrogen fertilizer recommendations. Recommendations are based on monitoring of crop health and...
- Author: Jose Luiz Carvalho de Souza Dias
- Author: Nicholas Clark
- Author: Konrad Mathesius
- Author: Sarah Light
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Common chickweed (Stellaria media) (Figure 1) is a winter annual found throughout California and considered to be one of the most common broadleaf weeds infesting cereal crops (also referred as small grains) in the state (Wilen 2006). Herbicides can provide effective control of chickweed; however, overreliance on a single herbicide (or group of herbicides with the same site of action), is likely to result in resistance to that herbicide (or group of herbicides) (Tranel and Wright 2017). Even though herbicide-resistant common chickweed populations have not been confirmed in California, lack of effective control with post-emergence applications of the ALS-inhibiting herbicides pyroxsulam (Simplicity) and tribenuron (Express...
- Author: Konrad Mathesius
- Contributor: Thomas Getts
- Contributor: José Luiz Carvalho de Souza Dias
- Editor: Brad Hanson
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Concerns about a growing resistance to herbicides
In Mediterranean or arid climates, particularly in areas with marginal soils, crop rotations are often limited to a narrow range of hay, pasture, a handful of winter legumes, or rainy-season grasses. Arid conditions and weathered soils drove Australia's rainfed grain growers to adopt no-till strategies earlier than their counterparts in California. While beneficial from a water use perspective, successful no-till systems depend on herbicides to control weeds that were traditionally kept in check with tillage.
Dependence on herbicides alone in these systems has resulted in weeds with resistance to multiple modes of action. In Australia, there is one...