Chemical control of Pileamicrophylla in cattleya seedlings (Cattleyatenebrosa x Cattleyaleopoldy)

Battistus, Andre Gustavo; Klein, Jeferson; Costa, Nivan B. da; Guimarães, Vandeir Francisco; Hoffmann, Vandir

doi:10.1590/s0100-83582014000400015

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…and/or superior. Battistus et al (2014) also found the same result in Cattleya orchid's seedlings (Cattleyatenebrosa x Cattleya leopoldy), being selective to the seedlings of floriferous and performing control of P. microphylla (above 90%) in 14 DAA for doses equal and/or superior to 120 g ha -1 a.i. In another study, Freitas et al (2007b) …”

Section: Resultssupporting

confidence: 58%

Manejo químico de Pilea microphylla em mudas de orquídeas

Klein

Battistus

Hoffmann³

et al. 2015

RBHerbicidas

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-Orchidaceae species are produced on a large scale for commercialization of its flowers. However, because of its slow development, the substrate is subject to weed infestation, such as brilhantina (Pilea microphylla). Thus, we aimed to evaluate the selectivity of herbicides to the orchid seedlings of genre Rhynchostylis ([Rhynchostylis gigantea Alba x Rhynchostylis gigantea] X Rhynchostylis gigantea Semi-Alba) and control of P. microphylla. A completely randomized design with four replicates per treatment was adopted. The herbicides studied were oxyfluorfen (0, 120, 240, and 480 g ha -1 a.i.), flumioxazin (0, 12.5, 25 and, 40 g ha -1 a.i.), nicosulfuron (0, 20, 40, and 80 g ha -1 a.i.), and mesotrione (0, 96, 144, and 192 g ha -1 a.i.), with a control without application for each molecule. At the time of spraying, the plants of orchid presented four leaves and were 5 cm high, while P. microphylla was 10 cm high. Nicosulfuron did not control P. microphylla, while oxyfluorfen and flumioxazin showed control levels exceeding 90% on 14 days after application (DAA). The mesotrione showed low ability to control the weed, reaching around 35% efficiency at 49 DAA. All herbicides were selective to the hybrid seedlings Rhynchostylis. The oxyfluorfen and flumioxazin molecules were efficient in controlling P. microphylla in the tested dose ranges. Keywords: Rhynchostylis spp.; brilhantina; herbicide; floriculture; selectivity Resumo -Espécies da família Orchidaceae são produzidas em larga escala para comercialização de suas flores. Entretanto, devido ao seu lento desenvolvimento, o substrato fica sujeito à infestação de plantas daninhas, como a brilhantina (Pilea microphylla). Assim, objetivou-se avaliar a seletividade de herbicidas à mudas de orquídeas do gênero Rhynchostylis ([Rhynchostylis gigantea Alba x Rhynchostylis gigantea] X Rhynchostylis gigantea Semi-Alba) e controle de P. microphylla. Adotou-se delineamento inteiramente casualizado, com quatro repetições por tratamento. Os herbicidas estudados foram: oxyfluorfen (0, 120, 240 e 480 g ha -1 i.a.), flumioxazin (0, 12,5, 25 e 40 g ha -1 i.a.), nicosulfuron (0, 20, 40 e 80 g ha -1 i.a.) e mesotrione (0, 96, 144 e 192 g ha -1 i.a.), com uma testemunha sem aplicação para cada molécula. Na ocasião da pulverização as plantas de orquídea apresentavam quatro folhas e 5 cm de altura, enquanto que a P. microphylla possuía 10 cm de altura. O nicosulfuron não controlou P. microphylla, enquanto o oxyfluorfen e o flumioxazin apresentaram eficiência de controle superior a 90% a partir dos 14 dias após a aplicação (DAA). A mesotrione demonstrou baixa capacidade de controle da infestante, atingindo em torno de 35% de eficiência aos 49 DAA. Todos os herbicidas foram seletivos às mudas do híbrido de Rhynchostylis.

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Section: Resultssupporting

confidence: 58%

Manejo químico de Pilea microphylla em mudas de orquídeas

Klein

Battistus

Hoffmann³

et al. 2015

RBHerbicidas

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“…They observed that no tested treatment provided any type of injury to both orchid species, and herbicide doses higher than 0.250 g ha -1 were efficient to control this weed. Battistus et al (2014) also studied the control of rockweed in orchids with the herbicide oxyfluorfen, but on cattleya (Cattleya tenebrosa x Cattleya leopady) seedlings with the herbicides nicosulfuron, mesotrione, clethodim, flumioxazin, and metsulfuron-methyl. The researchers reported that all herbicides were selective for this cattleya hybrid, but the herbicides flumioxazin, metsulfuron-methyl, and oxyfluorfen were also efficient for weed control, corroborating the results of oxyfluorfen obtained by Freitas et al (2007).…”

Section: Orchidsmentioning

confidence: 99%

Weed Management and Herbicide Selectivity in Ornamental Plants

Martins

Silva

2019

Planta daninha

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Floriculture and landscaping sector has the same problems as other crops regarding weed management. Weeds affect the yield and quality of the harvested product, in which the visual aspect and aesthetics stand out as the most important factors in flower production and landscaping. Weed control in floriculture and landscaping is critical and costly because maintaining the beauty of the product and the use of herbicides is a low-cost management tool compared to manual management. However, it implies knowing herbicide selectivity, as ornamental species may present some injury depending on the active ingredient and the degree of selectivity of the compound. Because the use of this practice in flower production and landscaping both abroad and mainly in Brazil is incipient, aspects of selectivity, chemical weed control, and safe application of different herbicides are addressed in this paper.

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“…(Romani et al 2013), and orchids (Cattleya species, Epidendrum ibaguense H.B.K., Dendrobium spp.) (Battistus et al 2014;Freitas et al 2007).…”

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confidence: 99%

Preemergence and Postemergence Control of Artilleryweed (Pilea microphylla) in Container Nurseries and Landscapes

et al. 2017

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These proceedings are a compilation of 14 papers that were presented at the regional meetings of the forest and conservation nursery associations in the United States in 2013. The Joint Northeast and Southern Forest Nursery Conference was held at the Holiday Inn City Centre, Lafayette, Indiana, July 22 to 25, 2013. Subject matter for the technical sections included nursery fertilization, black walnut research, and exploring the threat of hybrid Phytopthoras (and how to prevent this). Field trips included tours of the Purdue Department of Forestry and Natural Resources, the Hardwood Tree Improvement and Regeneration Center plantings, the Martell Forest -Wright Forestry Center, ArborAmerica, and Vallonia Nursery. The meeting of the Western Forest and Conservation Nursery Association was held at the Red Lion Hotel, Olympia, Washington, August 6 to 7, 2013. Subject matter for the sessions was themed around management of soils, growing media, and roots in the production of forest and conservation seedlings. This included tree pathology, Methyl Bromide alternatives, mycofiltration technology, photoperiod manipulation, fertilization, root zone heating, evaluating alternative growing media components and conducting effective research in the nursery. The meeting was hosted by the Washington Department of Natural Resources (DNR). An afternoon field trip included tours of Washington DNR's Meridian Seed Orchard, Lawyer Nursery, and Washington DNR's Webster Nursery. Evening presentations centered around the local area, historic shellfish growing, and tree farms.Key Words-bareroot nursery, container nursery, nursery practices, fertilization, pest management, seeds, reforestation, restoration, tree physiology, hardwood species, native species Papers were edited to a uniform style; however, authors are responsible for content and accuracy.i Pesticide Precautionary StatementThis publication reports research involving pesticides. It does not contain recommendations for their use, nor does it imply that the uses discussed here have been registered. All uses of pesticides must be registered by the appropriate state and/or federal agencies before they can be recommended. CAUTION:Pesticides can injure humans, domestic animals, desirable plants, fish, and wildlife if they are not handled or applied properly. Use all pesticides selectively and carefully. Follow recommended practices for the disposal of surplus pesticides and their containers. The use of trade or firm names in this publication is for reader information and does not imply endorsement of any product or service by any of the organizations represented here.ii iii Acknowledgments:The Funding for this publication was provided as a technology transfer service by the USDA Forest Service, State and Private Forestry through the National Reforestation, Nurseries, and Genetic Resources (RNGR) Program. The compilers thank Jim Marin, Lane Eskew, Nancy Chadwick, and Phillip Cates for their assistance in the preparation, printing, and distribution of this publication. Searcha...

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Chemical control of Pileamicrophylla in cattleya seedlings (Cattleyatenebrosa x Cattleyaleopoldy)

Cited by 4 publications

References 8 publications

Manejo químico de Pilea microphylla em mudas de orquídeas

Manejo químico de Pilea microphylla em mudas de orquídeas

Weed Management and Herbicide Selectivity in Ornamental Plants

Preemergence and Postemergence Control of Artilleryweed (Pilea microphylla) in Container Nurseries and Landscapes

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