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Lee Kalcsits, Gregory van der Heijden, Michelle Reid, and Katie Mullin

Ca used as foliar sprays have been extensively studied ( Biggs and Peck, 2015 ; Ferguson and Watkins, 1989 ; Lötze et al., 2008 ). However, there are questions of how much Ca is absorbed by the fruit and whether the absorption efficiency changes

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Dámaris L. Ojeda-Barrios, Eloísa Perea-Portillo, O. Adriana Hernández-Rodríguez, Graciela Ávila-Quezada, Javier Abadía, and Leonardo Lombardini

Mexico ( Alben and Hammer, 1944 ; Favela et al., 2000 ; Núñez-Moreno et al., 2009b ). Management practices for Zn deficiency usually consist of frequent foliar applications using Zn-based products that may include either inorganic Zn salts or Zn

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Noa K. Lincoln, Theodore Radovich, Kahealani Acosta, Eli Isele, and Alyssa Cho

breeding effort ( Sraffa, 2005 ; Willcox, 1954 ). Foliar nutrient analysis is a well-established method ( Munson and Nelson, 1990 ) to assist in the diagnosis of nutrient-related problems (deficiencies, toxicities, imbalances, etc.) of both annual and

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Benjamin D. Taylor and Benjamin K. Hoover

talcum powder are legally required to wear personal protective equipment including a respirator, gloves, protective eyewear, long sleeves, and long pants ( Brooker Chemical Corp., n.d. ; OHP, Inc., 2010 ). The efficacy of foliar spray application of IBA

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Carol J. Lovatt

Foliar fertilization is a rapid and efficient way to improve crop nutrient status during periods of high nutrient demand in the phenology of a tree crop, or when soil conditions (cold wet soils in spring, hot dry soils in summer, lack of

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Lenny Wells, Jason Brock, and Tim Brenneman

on pecan scab have been studied since the 1920s; however, most studies have demonstrated little effect of S on pecan scab Fusicladium effusum G. Winter ( Bertrand et al., 1981 ; Waite, 1924 ). Foliar urea sprays are known to enhance fruit

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John R. Stommel and Robert J. Griesbach

cultivars that combine unique foliar attributes with diverse fruit and plant habit attributes ( Stommel and Griesbach, 1993 , 2004 , 2005 , 2008a , 2008b ). This article describes the inheritance patterns and relationships between these horticulturally

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Esmaeil Fallahi and Thomas Eichert

Deciduous tree fruit yield and quality will suffer in response to insufficiency of any mineral nutrient and foliar applications of some elements, including nitrogen (N), calcium, potassium (K), and boron (B), that are closely tied to fruit quality

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Justin M. Vitullo and Clifford S. Sadof

of floral scents, flowers are even more preferred by beetles than foliage ( Held and Potter, 2004 ). Due to the long flight period of adult beetles (usually >8 weeks), multiple foliar applications of persistent insecticides like carbaryl are typically

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J. R. Davenport

Foliar feeding of crop plants is an increasingly popular practice. The use of foliar nutrients relies on the ability of the plant to sorb nutrients through the leaves. Cranberries (Vaccinium macrocarpon Ait.) are known to have a waxy cuticle on the leaf surface which may impede nutrient uptake, leaving only the lower leaf surface for effective uptake. This study was undertaken to determine the extent of foliar nutrient uptake by cranberries using rubidium as a tracer. Rubidium was chosen for its similarity to potassium in plant uptake. In replicated plots, cranberries were sprayed with rubidium at the rate recommended for foliar potassium at three different growth stages and three different times of day. Washed and unwashed leaves were analyzed one day, one week, and one month after rubidium applications. Stem, soil, and root material was analyzed for rubidium at the one week and one month sample times. Results will be discussed with reference to uptake and movement of foliar applied nutrients in cranberries.