نتایج جستجو برای: lawns

تعداد نتایج: 540  

Journal: :International Turfgrass Society research journal 2021

Hollow-tine cultivation is a common management practice in cool-season turfgrass lawns. Research examining the effect of hollow-tine on annual crabgrass (Digitaria spp.) infestations absence preemergence herbicides limited. Multi-year experiments were conducted Kentucky bluegrass (Poa pratensis L.) and tall fescue [Lolium arundinaceum (Schreb.) Darbysh.] monostands at Rutgers University Horticu...

Journal: :RUDN Journal of Agronomy and Animal Industries 2013

2014

Weed control (Irshad Ahmad et al 2007) has a major effect on agriculture. A large amount of herbicide has been used for controlling weeds in agriculture fields, lawns, golf courses, sport fields etc. Random spraying of herbicides does not meet the exact requirement of the field. Certain areas in field have more weed patches than estimated. So, the visual system that can discriminate weeds from ...

Journal: :Phytoparasitica 2021

Since October 2019, chinch bugs have been detected in large sunken dead patches of St. Augustinegrass (Stenotaphrum secundatum) lawns different locations Lisbon and Setubal districts, Portugal. Based on morphological molecular studies, using mitochondrial Cytochrome C Oxidase subunit I (COI) gene, the collected insects were identified as Blissus insularis (Hemiptera, Heteroptera, Blissidae). Th...

Journal: :Botanica Pacifica 2021

This article provides information on the ecology of lawn communities in cities Urals Republic Bashkortostan (Ufa, Sterlitamak, Salavat, Ishimbay, Meleuz, Birsk, Neftekamsk, Yanaul). On basis 195 relevés, ecological regimes and their species were determined using scales Landolt. DCA ordination relevés confirmed floristic differentiation into 4 associations, 2 subassociations, 5 facies assigned t...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2002
Stefan Pukatzki Richard H Kessin John J Mekalanos

Genetically accessible host models are useful for studying microbial pathogenesis because they offer the means to identify novel strategies that pathogens use to evade immune mechanisms, cause cellular injury, and induce disease. We have developed conditions under which the human pathogen Pseudomonas aeruginosa infects Dictyostelium discoideum, a genetically tractable eukaryotic organism. When ...

Journal: :FEMS microbiology ecology 2015
Heli Juottonen Mirkka Kotiaho Devin Robinson Päivi Merilä Hannu Fritze Eeva-Stiina Tuittila

Vegetation and water table are important regulators of methane emission in peatlands. Microform variation encompasses these factors in small-scale topographic gradients of dry hummocks, intermediate lawns and wet hollows. We examined methane production and oxidization among microforms in four boreal bogs that showed more variation of vegetation within a bog with microform than between the bogs....

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