111 research outputs found
The Evolution and Expansion of Risk Management Education Programs in the United States
A rapidly changing business environment has dictated a need for farmers to improve their risk management skills. The 1996 Federal Agricultural Improvement and Reform Act (FAIR) also created a new environment for American farmers by eliminating planting restrictions and deficiency payments. Congress recognized the changing environment by mandating the Secretary of Agriculture to initiate a risk management education program. A memorandum of understanding specified the responsibilities of the federal agencies involved in risk management services and education. A work group representing all public and private organizations concerned with risk management services and strategies was convened. The work group established a set of objectives, the five major areas of risk to address and an overall educational plan. Five regional extension coordinating offices were established to coordinate activities with federal agencies and the private sector and to distribute funding for extension based educational programs. The initiative originally received funding of 5M for risk management education for the 2001 fiscal year and the succeeding four years. The initiative has provided an impetus to look a risk management in a broad and comprehensive manner. This has resulted in the development of very creative and innovative programs, in terms of materials and methods of delivery. The working partnerships between public and private sector organizations have been a key to the success of the programs.Farm Management, Risk and Uncertainty, Teaching/Communication/Extension/Profession,
Evidence-based practice self-efficacy of speech-language pathologists across settings
The purpose of this mixed-methods sequential explanatory study was to explore self-efficacy of speech-language pathologists (SLPs) employed in various settings. Self-efficacy of master's level SLPs was compared across settings to determine if differences existed in each of four experience groups. Self-efficacy ratings were also compared based on degree held, area of practice, and years of experience. Participants (n = 342) completed a survey containing 10 demographic questions, 11 items from Salbach and Jaglal's (2010) Evidence-Based Practice Confidence (EPIC) scale, and 2 open-ended questions regarding factors impacting self-efficacy. Participants (n=34) completed semi structured interviews to further explore factors influencing self-efficacy. No significant difference was noted in self-efficacy of master's level SLPs among settings. There was a significant difference between self-efficacy ratings based on degree held and years of experience. A significant difference in self-efficacy was found based on practice category (i.e., identification of knowledge gap, critical appraisal of research, development of treatment plans based on evidence, clinical judgment, and client preferences). Qualitative analysis revealed graduate program and post-graduate factors which impacted self efficacy ratings both positively and negatively.Includes bibliographical reference
A CONJOINT ANALYSIS OF PAPER DEMAND BY COMMERCIAL GRAPHIC DESIGNERS
Conjoint analysis was used to evaluate the preferences of graphic designers toward kenaf paper. Results indicate that price is of overwhelming importance to designers in their purchasing decisions regarding paper stock. If priced competitively with existing wood and recycled papers, kenaf products should gain market share among designers.Demand and Price Analysis,
Management Recommendations for Soybean Aphid (Hemiptera: Aphididae) in the United States
Soybean aphid, Aphis glycines Matsumura (Hemiptera: Aphididae), is the primary pest of soybean, Glycine max L., in the north central region. After more than a decade of research and extension efforts to manage this pest, several consensus management recommendations have been developed for sustainable and profitable soybean production. A summary of integrated pest management (IPM) tactics for soybean aphid are discussed, including cultural, genetic, economic, and chemical controls. To date, sampling and timely foliar insecticides are routinely recommended to protect yield and delay genetic resistance to insecticides. Host plant resistance is a new tool that can regulate populations and reduce the reliance of insecticides to control soybean aphid. A combination of these management tools also will reduce overall production costs and minimize negative environmental effects such as human exposure, and mortality of beneficial insects and other animals
Quick Sex-Determination of the Asiatic Garden Beetle, Maladera castanea (Coleoptera: Scarabaeidae)
The orientation of the posterior abdominal sternite and pygidium allows for quick sex-determination of Maladera castanea (Arrow) (Coleoptera: Scarabaeidae: Melolonthinae) adults with a dissecting microscope or hand lens. Maladera castanea (the Asiatic garden beetle) is an emerging pest of field crops and this information will help researchers to conduct studies more easily on its biology and ecology
One gene versus two: A regional study on the efficacy of single gene versus pyramided resistance for soybean aphid management
Citation: McCarville, M. T., M. E. O’Neal, B. D. Potter, K. J. Tilmon, E. M. Cullen, B. P. McCornack, J. F. Tooker, and D. A. Prischmann-Voldseth. 2014. “One Gene Versus Two: A Regional Study on the Efficacy of Single Gene Versus Pyramided Resistance for Soybean Aphid Management.” Journal of Economic Entomology 107 (4): 1680–87. https://doi.org/10.1603/EC14047.The soybean aphid (Aphis glycines Matsumura) is a threat to soybean production in the Midwestern United States. Varieties containing the Rag1 soybean aphid resistance gene have been released with limited success in reducing aphid populations. Furthermore, virulent biotypes occur within North America and challenge the durability of single-gene resistance. Pyramiding resistance genes has the potential to improve aphid population suppression and increase resistance gene durability. Our goal was to determine if a pyramid could provide improved aphid population suppression across a wide range of environments.Weconducted a small-plot Þeld experiment across seven states and three years. We compared soybean near-isolines for the Rag1 or Rag2 gene, and a pyramid
line containing both genes for their ability to decrease aphid pressure and protect yield compared with a susceptible line. These lines were evaluated both with and without a neonicitinoid seed treatment. All aphid-resistant lines signiĂžcantly decreased aphid pressure at all locations but one. The pyramid line experienced lower aphid pressure than both single-gene lines at eight of 23 location-years. Soybean aphids signiĂžcantly reduced soybean yield for the susceptible line by 14% and for both single-gene lines
by 5%; however, no signiĂžcant yield decrease was observed for the pyramid line. The neonicitinoid seed treatment reduced plant exposure to aphids across all soybean lines, but did not provide signiĂžcant yield protection for any of the lines. These results demonstrate that pyramiding resistance genes can provide sufĂžcient and consistent yield protection from soybean aphid in North America
Preliminary Feeding Assessments for Asiatic Garden Beetle, Maladera formosae (Coleoptera: Scarabaeidae), Grubs and Adults
The Asiatic garden beetle, Maladera formosae (Brenske) (syn. M. castanea [Arrow]), is an annual white grub species that was unintentionally introduced from east Asia to North America in 1921 in New Jersey, and has since spread to at least 25 states and two Canadian provinces. Grub populations in the Great Lakes region have recently emerged as significant early-season pests of field crops, particularly field corn, grown in sandy soils. Asiatic garden beetle has also recently become established in other regions including Alabama. Prior research on this species was conducted mainly in the 1930s in horticultural and turfgrass systems of New York and New Jersey. In this study, we document Asiatic garden beetle preference and performance on previously un-investigated food resources, in populations from Ohio and Alabama. The objectives of these experiments were to a) understand if grubs show preference to potential diet choices present in a typical Ohio corn-soybean rotation, and gained mass when provided a single diet, and b) to conduct a preliminary assessment on the development, survival, and fecundity of field-collected beetles on different diets present in suburban Alabama. In general, grubs were more likely to be found at corn and marestail and they significantly increased in body mass when subjected to those diets. However, they were also able to survive and gain mass when provided soybean, crop residues or bare soil. Adults consumed more rose flower petals than floral tissue of white clover and Queen Anne’s lace. In no-choice trials, only females that were fed a diet of rose petals laid eggs, and diet consumption rates were similar among males and females. These findings provide insight into the feeding behaviors of Asiatic garden beetle grubs and adults collected from novel environments
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