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elongation by delaying tip abscission for all willows, but did not affect floral development dates. Management of Citrus Greening and Canker in Tahiti Lime Evans et al. (p. 99) conducted an economic analysis of three possible types of tahiti lime management

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Brooke C. Colburn, Shawn A. Mehlenbacher, Vidyasagar R. Sathuvalli and David C. Smith

spring and early summer. The ascospores germinate and produce hyphae that directly penetrate young growing shoots, permeate and destroy the cambial layer, and produce visible cankers with stromata 12–16 months after infection. Infection results in stem

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Vidyasagar R. Sathuvalli, Shawn A. Mehlenbacher and David C. Smith

obligate biotroph with a 2-year life cycle ( Pinkerton et al., 1995 ) that infects several species in the genus Corylus . On the commercially important european hazelnut, the fungus causes severe stem cankers leading to rapid yield losses and to eventual

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Charles A. Powell, Michael S. Burton, Robert Pelosi, Mark A. Ritenour and Robert C. Bullock

infection site for Xanthomonas axonopodis pv. citri , a bacterium that causes citrus canker. Feeding damage is related to availability of young leaves and flushing pattern. Several studies have been conducted to correlate CLM damage with economic loss

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Paul M. Lyrene

.& De Not], stem canker [ Botryosphaeria corticis (Demaree & M.S. Wilcox) Arx & E. Muller], and numerous fungi that attack the leaves, including blueberry leaf rust [ Pucciniastrum vaccinii (G. Wint.) Jorst]. Other plant characteristics that required

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Chenping Zhou, Ruiting Chen, Yaqiang Sun, He Wang, Yi Wang, Ting Wu, Xinzhong Zhang, Xuefeng Xu and Zhenhai Han

In China, apple is an important economic fruit crop that is threatened by trunk wounding, which can seriously restrict the development of the apple fruit industry ( Wang et al., 2014 ). In general, trunk injury caused by Valsa canker, mechanical

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Andrew P. Nyczepir and Bruce W. Wood

). Two common causes of early tree death are a disease complex known as PTSL and Armillaria root rot ( Miller, 1994 ). Peach tree short life is reportedly caused by a predisposition of trees to bacterial canker ( Pseudomonas syringae pv. syringae van

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Shawn A. Mehlenbacher, David C. Smith and Rebecca L. McCluskey

described by Pinkerton et al. (1993) . A second set was exposed in 2002. Cankers were counted and measured ≈20 months after exposure to EFB and the amount of disease expressed as total canker length per tree. A square root transformation was used to make

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Shawn A. Mehlenbacher, Anita N. Azarenko, David C. Smith and Rebecca McCluskey

selections, ‘Santiam’ transmits resistance to its offspring. Seven potted trees of ‘Santiam’ were exposed under structures topped with diseased wood as described by Pinkerton et al. (1993) in Spring 2004 and cankers were measured in Jan. 2006. Nearly all

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Rhuanito S. Ferrarezi, Alan L. Wright, Brian J. Boman, Arnold W. Schumann, Fred G. Gmitter and Jude W. Grosser

excluding the adult ACP and it is expected that it will lead to prevention of HLB development. In addition, the screen cloth used in this project might be able to reduce the incidence and severity of citrus canker disease, another economically important