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Warren E. Copes and Eugene K. Blythe

( Benson, 1992 ; Chase, 1991 ; Smith and Neely, 1981 ). Best management practices for propagation of pathogen-free plants include the use of clean rooting substrate, the collection of cuttings from disease-free plants, and the use of sanitary

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Don R. La Bonte, Christopher A. Clark, Tara P. Smith, Arthur Q. Villordon, and C. Scott Stoddard

et al. (2000) . Disease Reactions ‘Burgundy’ was compared with ‘Beauregard’ in controlled tests for resistance to common pathogens affecting sweetpotatoes. It is intermediate to resistant or similar to ‘Beauregard’ for soil rot caused by Streptomyces

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Cui-ping Hua, Zhong-kui Xie, Zhi-jiang Wu, Yu-bao Zhang, Zhi-hong Guo, Yang Qiu, Le Wang, and Ya-jun Wang

likely to be the pathogenic fungi of Lanzhou lily. This study also found I. macrodidyma , which has been reported to be an olive tree root rot pathogen ( Urbez-Torres et al., 2012 ). In addition, the study found that the relative abundance of M. alpina

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Fucheng Shan and Kevin Seaton

stricter sterilization procedures. In the SSTC method, the sterilization needed to be sufficient to remove pathogens but not too severe to damage tissues causing rotting and death or affecting root formation in immature cuttings. If sterilization was too

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Melinda A. Miller-Butler, Barbara J. Smith, Brian R. Kreiser, and Eugene K. Blythe

). Colletotrichum acutatum incites two major anthracnose diseases on strawberry: anthracnose fruit rot and root necrosis ( Howard et al., 1992 ; Mertely and Peres, 2012 ; Mertely et al., 2005 ), and has been found to remain latent on symptomless strawberry plants

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Clive Kaiser, Philip B. Hamm, Stacy Gieck, Nicholas David, Lynn Long, Mekjell Meland, and J. Mark Christensen

salts in controlling Phytophthora root rot of citrus Crop Prot. 21 751 756 GenStat® 2010 Release 13.1.0.4470 VSN International Ltd. Rothamsted, U.K Hervieux, V. Yaganza, E.S. Arul, J. Tweddell, R.J. 2002 Effect of organic and inorganic salts on the

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G. Craig Yencho, Kenneth V. Pecota, Jonathan R. Schultheis, Zvezdana-Pesic VanEsbroeck, Gerald J. Holmes, Billy E. Little, Allan C. Thornton, and Van-Den Truong

similar incidence of root lesions. Table 1 provides a summary of these three disease screens for ‘Covington’. Table 1. Summary of disease screens of ‘Covington’ for the years 2000 to 2004. In terms of postharvest pathogens, ‘Covington’ is

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Ajay Nair and Donglin Zhang

increased rooting percentage. Gouveia (1991) , however, found wounding to be unnecessary in korean stewartia. Wounding sites can also serve as an easy entry point for pathogens and other harmful microorganisms. To overcome this problem, Dirr and Heuser

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Ju Ding, Kai Shi, Yan-Hong Zhou, and Jing-Quan Yu

plants per plot was rated at Days 0, 2, 4, 6, 8, 10, and 12 after FO inoculation (dpi). At Day 12, plants were harvested for assessment of root rot and vascular bundle browning on a scale of 0 to 4 as follows: 0, healthy without any browning; 1, white

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P. Gordon Braun, Keith D. Fuller, Kenneth McRae, and Sherry A.E. Fillmore

Compost applications alone or in combination with cultural practices or chemicals have the potential to contribute to the control of root pathogens ( Mazzola et al., 2006 ; Peryea and Covey, 1989 ; van Bruggen, 1995 ; Zinati, 2005 ). ARD is a