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Marie-José Côté and Lisa Leduc

( Clark et al., 1986 ; Pierce, 1981 ). Wheat rust is a destructive fungal disease of cereals and grasses capable of causing major crop losses ( Pierce, 1981 ; Roelfs, 1982 ). The rust multiplies on barberry and often develops new and more virulent races

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Samuel G. Obae, Mark H. Brand, and Richard C. Kaitany

molecular key that could be used by regulatory personnel to ascertain cultivar identity to facilitate international trade of B. thunbergii cultivars where wheat rust is a concern. The presence of genetic variants or subclones in some B. thunbergii

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Bala Rathinasabapathi

crop-specific fungal infections, mainly wheat rust.” When referring to agrochemicals, the author implies that herbicides are not pesticides (p.151, 161, and many other places). In a section teaching the reader about how plants make food, the author

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Cláudia S. da Costa Ribeiro and Paul W. Bosland

; Sy et al., 2008 ). Physiological races have been identified using cultivar differentials since 1919, when Stakman (1919) developed a scheme for race identification of Puccinia graminis f. sp. tritici, the causal agent of wheat rust. For

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Haiying Liang, Bing-Qing Hao, Guo-Chen Chen, Hang Ye, and Jinlin Ma

culm blight of rice, wheat rust, rice hopper, cutworms, earthworms, cotton aphids, scale insects, longhorned beetles, golden apple snails, and leeches ( Martín et al., 2008 ; Potter et al., 2010 ; Shanan and Ying, 1982 ). In aquaculture, the residue