Wild rice is a high-value specialty crop in California. Weeds are an important pest issue in this crop, yet to date, only carfentrazone is registered for weed control in this crop. Herbicide field trials were conducted in 2022 and 2023 in Shasta and Yolo counties, California, in support of the IR-4 project’s mission to register new pesticides for specialty crops. Herbicides tested for efficacy and crop safety included cyhalofop-butyl, florpyrauxifen-benzyl, penoxsulam, propanil, and triclopyr at two application rates each, as well as carfentrazone applied at the labeled rate. At all sites, weed control was acceptable with most treatments and comparable to that of carfentrazone. Generally, florpyrauxifen-benzyl, penoxsulam, and triclopyr provided the greatest broad-spectrum weed control. In particular, uncommon weeds such as common spikerush and longleaf pondweed (Shasta County sites in 2022 and 2023, respectively) were controlled well with these herbicides. Propanil was also very effective against these two species, yet it provided only up to 25% control of ricefield bulrush. Crop response to herbicides was variable. Carfentrazone, cyhalofop-butyl, florpyrauxifen-benzyl, and propanil all caused minor and transient injury to the wild rice, characterized by chlorosis, leaf burn, and stunting. Florpyrauxifen-benzyl and triclopyr also caused some leaf deformation, which the wild rice did not recover from. The most significant crop injury was caused by penoxsulam, resulting in severe or complete stand loss at the low and high rates, respectively, across all site-years. Triclopyr also caused unacceptable lodging at both rates at all sites, significantly reducing yield at the higher rate. Crop yields in noninjured plots were similar to those from the untreated control and carfentrazone-treated plots, although the higher rate of florpyrauxifen-benzyl did reduce yields somewhat. These data provide important crop-safety information for wild rice and will inform further herbicide program research toward potential registration for wild rice in California.

Archaeologists in North America often think of the bow and arrow as appearing more or less instantaneously, a conception baked into many culture-historical schemes. However, this specialized technology likely has a more complex history. From a single Old World origin, it is thought to have spread throughout North America from the Arctic after about 5000 cal BP. From there, it seems to have moved from north to south, but the specific timing of the arrival of this important technology is not known in great detail throughout most of California. Rather than using typological or culture-historical categories to discern this technological replacement, this study plots salient artifact attributes from a large sample of projectile points from central and northern California through continuous time to provide more detail on the timing of the spread of this important prehistoric technology. Results suggest the bow and arrow entered northeastern California before 2000 cal BP and moved southward, arriving at the Sacramento–San Joaquin Delta as much as 1,000 years later. The changepoint analysis method introduced here should be broadly applicable to a wide variety of similar archaeological patterns.

American states continue to experiment with new forms of electoral institutions, including various nonpartisan election systems. One such rule, the “top-two” procedure, allows all voters to choose any candidate in the primary, advancing whichever two candidates obtain the most votes to the general election. These general elections may feature two candidates of the same party. This paper uses data from California, the largest state to adopt this rule, to examine participation and competition in the last five elections before the top-two procedure (2002 to 2010) and the first five after it (2012 to 2020), investigating the potential trade-off between the roll-off and increased competition. We find that while roll-off occurs with copartisan elections, the compensating increases in competition are substantial. Furthermore, with this system, the meaningful competition shifts toward the higher turnout general elections, which calls into question whether there is much of a participatory cost at all. Additionally, we leverage the unusual cases of write-in candidates to illustrate the electoral dynamics of these elections, highlighting the difficulty of implementing accountability with cross-party elections while demonstrating the behavioral potential of copartisan elections.

Woodrats of the genus Neotoma are an important study system for ecological and paleoecological research. However, paleontological studies are often hindered by the difficulty of identifying woodrat remains to species. We address this limitation by using 2D landmark-based geometric morphometrics to classify 199 lower first molars (m1s) of five extant western North American Neotoma species (N. albigula, N. cinerea, N. fuscipes, N. lepida, and N. macrotis) collected throughout California. We then use discriminant analysis of principal components (DAPC) models to identify Late Pleistocene fossils of unknown species from the Rancho La Brea Tar Pits in Los Angeles, California. DAPC correctly identifies ∼85–90% of extant individuals to species, with most misclassifications occurring between sister taxa N. fuscipes and N. macrotis. Most fossil m1s are classified as N. macrotis by DAPC, which may be the first confirmation of N. macrotis in the fossil record. We show that landmark-based geometric morphometric analyses are generally effective at differentiating m1s of extant Neotoma species in California and they are an auspicious method for unknown fossil identification. Further applications of this method across a broader range of geographic locations and species will better contextualize its utility.

This paper studies the effects of the U.S. railroad expansion during the 19th century on exports of wine at the customs district level. I digitize previously unexploited data on wine trade flows for customs districts from 1870 to 1900 and combine these data with GIS-based measures of access to wine-producing regions for each district. I find that improved access to wine producers, driven by the ongoing construction of more railways, led to districts exporting more wine. My results suggest that the rollout of the U.S. railroad network had important effects on the spatial distribution of the wine trade across ports.

This article explores the formation of the University of California amidst widespread populist agitation against university leaders in the 1870s. These complaints were rooted in corruption by the Board of Regents as well as their failure to honor the requirement of the 1862 Morrill Act to offer practical training in “agriculture and the mechanic arts.” It argues that Yosemite served as a vehicle through which representatives of the University of California countered charges of elitism and fostered a reputation for trustworthy stewardship of public land. These efforts were visible to the public through literary texts, newspapers, public lectures, nature writings, and other forms of popular literature. By positioning Yosemite as a site of middlebrow intellectual exchange and an alternative to the demonstration farms established at other land grant institutions, professors such as Joseph LeConte helped quell populist critiques and strengthen affective ties to the university. The resulting shift in popular sentiment helped secure public trust in the university for the remainder of the Gilded Age and Progressive Era.

Currently, scholars hold that the government’s principal contribution to the California wine industry’s recovery from Prohibition in the 1930s was to get out of the way, freeing entrepreneurs to conduct business properly; according to this interpretation, the United States only taxed the product and impeded progress. But this article argues that in the areas of regulation, promotion, and protection of the wine industry, the federal government provided a framework for California winemakers to succeed and that, moreover, it often did so at their request and in cooperation with them. Though New Deal laws and regulations did not benefit all stakeholders equally, they did work to bring economic recovery to an industry that suffered from both Prohibition and the Depression.

In the annual presidential address to the American Society of Church History (ASCH), Jonathan Ebel reflects on both the Depression-era meetings of the society and the efforts of agricultural economist Harry Drobish and his team of reformers in 1930s California. Ebel uses this framing of the ASCH meetings nine decades ago and Drobish's project to consider those who risk reform and he argues that a lesson the ASCH of today can take from the example of Drobish is that, even if things can go wrong, a tremendous amount of good can come from engaged action. Ebel asks the society's members to consider how hindsight can benefit them by encouraging them to not be silent or disengaged as individuals, and to think creatively about when and how their work resonates in and is relevant to the current social–political moment.

In 1923, Los Angeles teachers protested the state’s biennial budget, a controversial document from newly elected governor Friend Richardson that significantly cut funding to government agencies. The budget was the culmination of more than a decade of fiscal policy reform that reflected a significant shift in anti-tax sentiment. The expansion of state governance in the early twentieth century required the development of fiscal policies to meet the needs of the modern state, and public debates about taxation reflected deep ideological differences about the structure and scope of government and implicated public schooling. This analysis demonstrates two features of fiscal policy reform in California. First, tax reform shaped and was shaped by the political context, demonstrating the dynamic relationship between fiscal policy and state formation. Second, debates about tax reform were ultimately about the scope of government. Anti-tax campaigns that sought a more limited government implicated schooling, the largest item in the state budget, and undermined efforts to achieve educational equity.

This article investigates Indigenous persistence within Mission Santa Clara de Asís in central California through the analysis of animal food remains. The Spanish colonial mission system within Alta California had a profound social and ecological impact on Indigenous peoples, altering traditional subsistence strategies and foodway patterns. Past research has highlighted the continued use of precolonial foods within the Alta California mission system alongside the daily consumption of colonial-style beef stews. This article expands on that literature to consider how Indigenous and colonial residents differentially acquired ingredients and prepared daily meals within the Alta California colonial mission system. This assessment demonstrates a sharp divergence between Indigenous and colonists’ daily diet, manifested in the continued use of wild food resources by Indigenous people as well as the maintenance of precolonial culinary practices in the preparation of cattle meat for daily stews. These findings complicate our understanding of foodways within the Spanish mission system and expand our understanding of Indigenous autonomy within conditions of colonialism.