1,720,963 research outputs found

    New Sources of Southern Chinch Bug Resistance in St. Augustinegrass

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    St. Augustinegrass, Stenotaphrum secundatum (Walt.) Kuntze, is widely used for lawns throughout the southern United States and is the predominant turfgrass for lawns in Florida. The southern chinch bug, Blissus insularis Barber, is the plant’s most damaging insect pest. This 4-page fact sheet was written by Huangjun Lu and Ronald Cherry, and published by the UF Department of Horticultural Sciences, July 2014

    Baits for Sampling Wireworms in Southern Florida's Agricultural Fields

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    SC078, a 3-page fact sheet by José Alvarez and Ronald Cherry, is a new addition to the UF Agronomy Department's electronic Sugarcane Handbook. It provides the basic data necessary for growers in the Everglades Agricultural Area to use rolled oats baits as a sampling tool to determine whether it is necessary to apply pesticides for wireworm control before planting. Published by the UF Agronomy Department, August 2006. SC078/SC078: Baits for Sampling Wireworms in Southern Florida's Agricultural Fields (ufl.edu

    Baits for Sampling Wireworms in Southern Florida's Agricultural Fields

    No full text
    SC078, a 3-page fact sheet by José Alvarez and Ronald Cherry, is a new addition to the UF Agronomy Department's electronic Sugarcane Handbook. It provides the basic data necessary for growers in the Everglades Agricultural Area to use rolled oats baits as a sampling tool to determine whether it is necessary to apply pesticides for wireworm control before planting. Published by the UF Agronomy Department, August 2006. SC078/SC078: Baits for Sampling Wireworms in Southern Florida's Agricultural Fields (ufl.edu

    Effect of Southern Chinch Bug on Weed Establishment in St. Augustinegrass

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    SS-AGR-277, a 3-page illustrated fact sheet by Curtis Rainbolt, Ronald Cherry and Russell Nagata, discusses the results of a study to further understand the relationship between southern chinch bugs and weeds in St. Augustinegrass in south Florida. Published by the UF Department of Agronomy, October 2007. SS AGR 277/AG282: Effect of Southern Chinch Bug on Weed Establishment in St. Augustinegrass (ufl.edu

    Screening Methods for Southern Chinch Bug Resistance in St. Augustinegrass

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    Relying on insecticides for southern chinch bug control raises turfgrass maintenance costs, increases the risk that insects will develop resistance to insecticides, and may damage the environment. Host-plant resistance is a relatively sustainable and environmentally sound option for management of this damaging insect pest.To develop new resistant varieties, plant materials must be screened for new sources of southern chinch bug resistance. Screening methods to measure host plant resistance of St. Augustinegrass to southern chinch bugs have measured nymphal and/or adult survival in so-called no-choice tests in which only the experimental plant materials were provided. There are four types of screening methods described in this 4-page fact sheet was written by Huangjun Lu and Ronald Cherry, and published by the UF Department of Entomology and Nematology, October 2014. (Photo credit: Long Ma, UF/IFAS Extension) ENY-480/IN1050: Screening Methods for Southern Chinch Bug Resistance in St. Augustinegrass (ufl.edu

    Tropical sod webworm Herpetogramma phaeopteralis Guenée (Insecta: Lepidoptera: Crambidae)

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    Tropical sod webworm larvae are destructive pests of warm season turfgrasses in the southeastern U.S., especially on newly established sod, lawns, athletic fields, and golf courses. Larval feeding damage reduces turfgrass aesthetics, vigor, photosynthesis and density. The first sign of damage is often caused by differences in grass height in areas where larvae are feeding. This 5-page fact sheet was written by Nastaran Tofangsazie, Steven P. Arthurs, and Ronald Cherry, and published by the UF Department of Entomology and Nematology, October 2012. EENY-541/IN968: Tropical Sod Webworm Herpetogramma phaeopteralis Guenée (Insecta: Lepidoptera: Crambidae) (ufl.edu

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Corn wireworm Melanotus communis Gyllenhal (Insecta: Coleoptera: Elateridae)

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    Insects in the family Elateridae are commonly known as click beetles. Their name comes from the clicking sound they make while attempting to right themselves after falling or being placed on their backs. The larvae of click beetles are called wireworms. The corn wireworm is a serious agricultural pest and was added to the EPPO A1 action list of quarantine pests in 2002. This 6-page fact sheet was written by Harsimran K. Gill, Gurminder Chahil, Gaurav Goyal, Jennifer L. Gillett-Kaufman, and Ronald Cherry, and published by the UF Department of Entomology and Nematology, January 2014. EENY584/IN1025: Corn wireworm Melanotus communis Gyllenhal (Insecta: Coleoptera: Elateridae) (ufl.edu

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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