Colleges, Departments, and Organizations: Recent submissions
Now showing items 41-60 of 17912
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Activating Shared Print as a Strategy for Legacy Print AccessWhile most libraries participate in collaborative shared print efforts but tend only to rely on them as a failsafe, this article underscores the timeliness and importance of more libraries “activating” shared print as a core strategy for access to legacy print content. The University of Arizona’s experiences with SCELC and HathiTrust for monographs and the WEST-Internet Archive pilot for serials are discussed as examples of how libraries might choose to pursue this approach.
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Cotton Insecticide Use Guide Knowing and Balancing RisksThis two‐page guide offers a concise, practical overview for cotton growers and pest management professionals on how to select insecticides that balance effective pest control with environmental, human, and ecological safety. It presents a rating system that scores products for their efficacy against target pests (such as whiteflies and lygus bugs) and for their risks to beneficial organisms like predatory insects, pollinators, and other wildlife, as well as potential hazards to human bystanders and aquatic life. The guide emphasizes that no product is completely without risk and that informed decisions require weighing factors such as pest control performance, resistance management, cost, and broader environmental impact. Developed by experts from the University of Arizona and USDA-ARS, this IPM (Integrated Pest Management) short serves as a user-friendly reference to help growers choose insecticides that support sustainable cotton production while minimizing unintended consequences.
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Vertento® (isocycloseram) for Lygus Management in Arizona CottonThe recent registration of Vertento® (isocycloseram; IRAC Group 30) introduces a novel mode of action for Lygus management in Arizona cotton. Field research under Arizona conditions demonstrates that Vertento provides excellent and consistent control of Lygus bugs at a rate of 1.6 oz per acre, with residual activity often extending two weeks or longer. Vertento is classified as a partially selective (“yellow box”) insecticide within Arizona’s biologically based IPM system, producing intermediate non-target effects on beneficial arthropods compared with fully selective and broad-spectrum alternatives. Predator community impacts are measurable but substantially less disruptive than those associated with organophosphate insecticides. When used strategically, Vertento offers an effective new option for Lygus control while supporting resistance management goals and minimizing the risk of secondary pest outbreaks. Its successful integration into Arizona cotton IPM depends on careful consideration of timing, predator abundance, and rotation with existing selective standards.
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Foundations of Virtual Fencing: Economics of Virtual Fence (VF) SystemsThis analysis explores the economic considerations of investing in virtual fence (VF) systems, examining their application for representative cow-calf operations under different operating conditions. Virtual fencing (VF) is a tool for livestock management that uses collars and a radio or cellular systems to influence the movement of livestock using auditory and electrical cues (Antaya et al. 2024). Users program the system to establish invisible barriers on a landscape. The system detects the location of animals and if animals approach or cross a “virtual” fence, they receive an auditory or electrical cue encouraging them to move away from the barrier. VF systems have the potential to offset physical fencing costs, enable adoption of adaptive management practices (Boyd et al. 2022; Boyd et al. 2023; Golinski et al. 2023; Verdon et al. 2021), and save ranchers time in locating animals, among other benefits (Campbell et al. 2018; Boyd et al. 2022; Schillings et al. 2024). Commercial VF systems have varying fee structures and require labor to operate which is an additional cost of adoption. Cost and economies of scale are factors that affect livestock producers’willingness to adopt technologies (Pruitt et al. 2012; Lima et al. 2018).
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Foundations of Virtual Fencing: Specifics on Collar Deployment by CompanyA virtual fence (VF) system typically consists of three main components: (1) a software interface that allows users to draw VF lines and define boundary zones on a digital map, establishing designated grazing areas and exclusion zones; (2) a GPS-enabled collar fitted around an animal’s neck, equipped with technology to track movement and deliver auditory and electrical cues to guide or restrict livestock distribution; and (3) base stations and/or cellular towers that facilitate communication between the software and the collars. Although there are similarities across systems, each company offers a distinct collar design. This educational material provides details on the attachment mechanisms, collar assembly, required deployment tools, and recommendations for achieving proper collar fit for each vendor.
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U.S. Pesticide Policy is Influenced by Stakeholder CommentsThis qualitative research study shows that grower-centered, evidence-based stakeholder comments significantly influenced EPA pesticide registration reviews, improving the accuracy and practicality of federal pesticide policy while protecting human health, the environment, and agricultural viability.
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Soil Health: Decomposition of Organic Materials and Nutrient MineralizationThis article, published in the VegIPM Newsletter (Vol. 17, No. 1), explains how organic material decomposition and nutrient mineralization influence soil health and nutrient availability in desert crop systems.
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The Modified Grazing Response Index – an improved planning tool for rotational grazing of livestockThe Grazing Response Index (GRI) is a simple and effective grazing evaluation tool that was initially developed at Colorado State University by Floyd Reed, Roy Roath, and David Bradford in 1999. The goal of the GRI is to rapidly assess the effects of grazing and provide data to aid in the development of grazing plans for the following year. While the GRI has proven to be simple and effective grazing assessment tool, updates to its basic framework are needed to reflect recent scientific findings and broaden its applicability in grazing regions where year-round grazing is typical. One notable limitation of the GRI is that it does not account for dormant season grazing, which is common in many southwestern rangelands systems where winters are milder. As a result, we propose the Modified Grazing Response Index (MGRI), an updated version of the GRI, tailored to the needs of the southwestern United States and other areas that may have year-round grazing.
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Biological Insecticide Options for Bagrada Bug ManagementThis article in the VegIPM Newsletter (Vol. 16, No. 25) summarizes biological insecticide performance for managing Bagrada bug in organic broccoli. M-Pede and the M-Pede + Entrust tank mix provided the strongest suppression (≈60%), while Captiva Prime and Neemix reduced populations by nearly 50%. Products like Aza-Direct, Entrust, and Botanigard delivered more moderate reductions (≈30%), with none offering rapid knockdown. Results highlight the limited but promising tools available for organic growers seeking selective options for Bagrada bug control.










