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Chandrasekar S. Kousik, Kai-Shu Ling, Scott Adkins, Craig G. Webster and William W. Turechek

Phytophthora capsici. Resistance in these germplasm lines is expressed as significantly reduced to practically no lesion development, rot, or pathogen sporulation on the fruit compared with large lesions, severe rot, and heavy sporulation on commercial

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Rita L. Hummel, Marianne Elliott, Gary Chastagner, Robert E. Riley, Kathy Riley and Annie DeBauw

between N application rates and disease development. Specifically, we tested the hypothesis that higher N fertility would result in increased disease incidence and severity. Materials and Methods Plant material. Three rhododendron cultivars shown to vary

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Mohammed B. Tahboub, Soumaila Sanogo, Paul W. Bosland and Leigh Murray

the plant stem is indicated by dark purplish lesions close to the soil surface. As the disease progresses, lesions rapidly coalesce and completely girdle the stem. Chile pepper fruit become infected during prolonged periods of heavy rain and high

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James C. Fulton and Mark E. Uchanski

a deeper understanding of the disorder leading to effective treatments and additional preventive measures instead of repeating previously conducted, yet difficult to obtain, studies. Description of Lesions Symptoms of stip appear as pale to dark

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Chandrasekar S. Kousik, Jennifer L. Ikerd, Patrick Wechter, Howard Harrison and Amnon Levi

varied greatly among the PI. Fig. 1. Phytophthora fruit rot development on watermelon fruit of a susceptible PI. Agar plug from an actively growing colony of Phytophthora capsici was placed on top of the fruit as the inoculum (center). Large lesion

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Sean M. Westerveld, Alan W. McKeown and Mary Ruth McDonald

suspension. Leaf senescence was rated before inoculation using the 0 to 10 scale but assessed on the entire foliage per plant. The number of ALB lesions per leaf was counted 4 weeks after inoculation as a result of delayed symptom development in this trial

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Ebrahiem M. Babiker, Stephen J. Stringer, Hamidou F. Sakhanokho, Barbara J. Smith and James J. Polashock

stem blight lesion development on detached blueberry stems Acta Hort. 1180 61 70 Strik, B.C. 2006 Blueberry production and research trends in North America Acta Hort. 715 173 183 Tamura, K. Stecher, G. Peterson, D. Filipski, A. Kumar, S. 2013 Molecular

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Adam D. Call, Adam D. Criswell, Todd C. Wehner, Kaori Ando and Rebecca Grumet

cucurbit downy mildew. Symptoms of cucumber downy mildew appear mostly on the foliage. Infection first appears as small, water-soaked lesions on the underside of leaves. Initially, lesions may be round in shape, becoming angular, because they are bound by

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Kiersten A. Wise, Robert A. Henson and Carl A. Bradley

. Plants were evaluated daily for 21 d for the development of ascochyta blight lesions, and the number of days after planting (DAP) that a lesion was first observed was recorded; plants that did not develop lesions were recorded as 22 DAP. After 21 d, the

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Beiquan Mou

Corky root is one of the major lettuce ( Lactuca sativa L.) diseases in the world, including North America, Western Europe, Australia, and New Zealand. Roots of infected plants develop yellow to brown lesions that later can become longitudinal