Results 21 to 30 of about 730 (164)
First record ofNeoerysiphe cumminsianaon horseweed in India [PDF]
Australasian Plant Disease Notes, 2008 In March 2008, a severe outbreak of powdery mildew disease was observed on horseweed (Conyza canadensis=Erigeron canadensis). Based on the morphological characters, the pathogen was identified as the anamorph ofNeoerysiphe cumminsiana. This is the first report of this organism causing powdery mildew onC. canadensis in Meghalaya, India.
P. Baiswar, S. Chandra, S. V. Ngachan
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Using Cover Crops to Suppress Horseweed [PDF]
, 2019 ...
Pittman, Kara, Flessner, Michael L.
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Aspects of the Allelopathic Potential of Horseweed (Conyza albida)
International Journal of Agricultural Research, 2007 The allelopathic effects of three plant tissues of Conyza albida (stems, leaves and inflorescences) on oat growth were further investigated using in vivo tests. Oat growth (fresh and dry weights of above and underground parts) was significantly inhibited from phytotoxic activity of upper leaves and inflorescence tissues of C. albida in pot experiments.
Travlos, I.S. +3 more
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Planta Daninha, 2011 Conyza canadensis e C. bonariensis são espécies invasoras cujo relato tem sido cada vez mais frequente, dada sua capacidade de desenvolvimento em áreas com palhada, sob sistema de semeadura direta (SSD).
O.M Yamashita +2 more
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Effect of glyphosate on the physiological parameters of horseweed
Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences, 2014 Resumen en: The aim of this study was to determine changes in the photosynthetic process and the inhibition of 5-enolpyruvylshikimate-3- phosphate synthase (EPSPs) b...
F.M. Santos +6 more
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Allelopathic effects of pathogenic fungi on weed plants of soybean and corn crops
Bioscience Journal, 2015 The herbicides application can be reduced with alternative methods, as pathogenic fungi use, that produces several secondary compounds in growth medium, which has phytotoxicity.
Ariane Spiassi +5 more
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Agronomy, 2012 Greenhouse and field studies were conducted in 2007 and 2008 to investigate possible multiple-resistance of horseweed to paraquat and glyphosate, and to evaluate the effect of the addition of metribuzin to paraquat on control of paraquat-resistant ...
Daniel H. Poston +3 more
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Planta Daninha, 2008 Experimentos de curva de dose-resposta foram conduzidos para avaliar a ocorrência de resistência ao glyphosate em biótipos de Conyza canadensis e Conyza bonariensis oriundos de municípios do Rio Grande do Sul.
F.P. Lamego, R.A. Vidal
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Differential susceptibility of biotypes of conyza sumatrensis to Chlorimuron-ethyl herbicide [PDF]
Planta Daninha, 2014 Horseweed (Conyza spp.) is an annual weed, infesting soybean crops in southern Brazil, with chlorimuron-ethyl being one of the most commonly used herbicides for its control.
F.M. Santos +5 more
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Biology and Management of Horseweed and Hairy Fleabane in California [PDF]
, 2008 Author(s): Shrestha, Anil; Hembree, Kurt; Wright, Steven | Abstract: Horseweed and hairy fleabane are showing increased resistance to chemical controls, including glyphosate. By learning about their biology and other control alternatives, you can do a better job of keeping on top of this pest problem.
Shrestha, Anil +2 more
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