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Anthony P. Keinath

tuberous root in mid to late spring, and this is after the majority of the years' precipitation has fallen” (S.J. Novak, personal communication, 19 June 1997). A Seedborne Cucurbit Pathogen D. bryoniae may be present both on and in cucurbit seed. Although

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Sephra N. Rampersad

6 = dead plant. Isolation of the pathogen. The main root and a 10-cm section of the stem (at the soil line) of each plant were cut and prepared for re-isolation of the pathogen. Each tissue sample was rinsed with water under high pressure for

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Christopher S. Cramer and Joe N. Corgan

infested with pink root and fusarium basal rot pathogens at the Fabian Garcia Science Center and the Leyendecker Plant Science Research Center in Las Cruces, NM, from 2006 to 2009. Availability Currently, ‘NuMex Serenade’ is being produced, marketed, and

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Salvatore Vitale, Laura Luongo, Marzia Scarpari, Lorenza Tizzani, Ivana Garaguso, Massimo Galli, Alessandra Belisario, Michele Scotton, Giovanni Mughini, Maria Gras, and Anita Haegi

and root rot of walnut caused by Phytophthora cinnamomi in Chile Plant Dis. 101 636 doi: 10.1094/PDIS-09-16-1242-PDN Hardham, A.R. Blackman, L.M. 2018 Pathogen profile update Phytophthora cinnamomi Mol. Plant Pathol. 19 260 285 doi: 10

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Oleg Daugovish, Hai Su, and W. Douglas Gubler

potential pathogens, such as black root rot complexes. In addition to reduction in disease incidence, we measured increased plant size and fruit yield in azoxystrobin, boscalid + pyraclostrobin, and cyprodinil + fludioxonil treatments. The other fungicides

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Nicolas Gruyer, Martine Dorais, Gérald J. Zagury, and Beatrix W. Alsanius

, resulting in reduced crop growth and fruit quality ( Dorais et al., 2001 ; Voogt et al., 2011 ). However, recirculation of nutrient solutions increases the risk of root diseases because of the presence of water-borne pathogens, such as Pythium sp. in the

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Medani Omer, James C. Locke, and Jonathan M. Frantz

) ( Daughtrey, 2003a ; Moorman, 1998 )] that can cause major disease problems. Many species of Pythium cause damping-off of germinating seeds, infect young roots, cause root rot in older plants, and, by proliferating into the stem base and growing upward

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Drew C. Zwart and Soo-Hyung Kim

to woody plants that are commonly found in managed landscapes. In trees, Phytophthora pathogens can cause fine root disease, root collar or crown rots, and trunk or stem lesions that are often referred to as “bleeding cankers” ( Erwin and Ribeiro

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Ajay Nair, Donglin Zhang, John Smagula, and Dongyan Hu

have revealed that physical characteristics of media such as particle size were less deterministic of rooting performance than air and water content ( Tilt and Bilderback, 1987 ). Media with more aeration ensured better rooting, minimal rotting, and

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Dipak Sharma-Poudyal, Timothy C. Paulitz, and Lindsey J. du Toit

-tainer for each genotype 45 d after planting. The experiment was repeated. Table 1. Percent reduction in plant height, root length, and total dry biomass of plants of each of 35 onion genotypes inoculated with the onion stunting pathogen, Rhizoctonia solani