Early copper application protects apples

Sundin, George W.
March 2012
Western Farm Press Exclusive Insight;3/22/2012, p3
The article discusses the benefit of early copper application for disease control on apples. The author explains that the positive disease-control benefits of coppers on apples are counterbalanced by the phytotoxicity risk to trees, particularly through russeting of apple fruit. The fire blight pathogen Erwinia amylovora and the apple scab pathogen Venturia inaequalis are highly sensitive to copper. Application of coppers is to be done immediately prior to the trees breaking dormancy.


Related Articles

  • Breeding Elite Lines of Apple Carrying Pyramided Homozygous Resistance Genes Against Apple Scab and Resistance Against Powdery Mildew and Fire Blight. Baumgartner, Isabelle; Patocchi, Andrea; Frey, Jürg; Peil, Andreas; Kellerhals, Markus // Plant Molecular Biology Reporter;Oct2015, Vol. 33 Issue 5, p1573 

    The development of high-quality cultivars, with durable disease resistance, is a major objective of apple breeding. The selection procedures of modern breeding programs no longer rely exclusively on phenotypic criteria but include marker-assisted breeding (MAB). Currently, molecular markers...

  • CONSIDERATIONS FOR COPPER SPRAYS IN TREE FRUITS. Rosenberger, Dave // Scaffolds Fruit Journal;3/25/2013, Vol. 22 Issue 1, p5 

    The article discusses the considerations for copper sprays in tree fruits. It notes that copper fungicide or bactericide sprays have proven useful for controlling fire blight of apples and pears, peach leaf curl and bacterial spot on peaches and nectarines and has provided protection against...

  • TOP FIVE.  // American Fruit Grower;Sep/Oct2011, Vol. 131 Issue 9, p6 

    A list of the top five most viewed news stories on GrowingProduce.com is presented which includes one about the severe apple scab in Pennsylvania, one about the escherichia coli outbreak in an Oregon farm, and one on perennial fruit plantings.

  • apple scab:. Schlegel, Rolf H. J. // Encyclopedic Dictionary of Plant Breeding & Related Subjects;2003, p38 

    A definition of the term "apple scab," which refers to the common disease of apple trees, is presented.

  • Contributions to Development of New Products against Apple Scab for Organic Apple Production. Mitre, Ioana; Mitre, Viorel; Sestras, Radu; Pop, Alexandru; Sestras, Adriana // Bulletin of the University of Agricultural Sciences & Veterinary;2010, Vol. 67 Issue 1, p127 

    Experimental results in the past years recommend using potassium bicarbonate like fungicide in preventing and control apple scab and other apple diseases. Experimental field was carried out in 2010 at a commercial orchard of SC Agroindustriala SA Cluj-Napoca, Romania. The trees were planted in...

  • A during-infection spray strategy using sulphur compounds, copper, silicon and a new formulation of potassium bicarbonate for primary scab control in organic apple production. L. Jamar; B. Lefrancq; C. Fassotte; M. Lateur // European Journal of Plant Pathology;Dec2008, Vol. 122 Issue 4, p481 

    Abstract  In a field experiment conducted over two growing seasons, the effectiveness and phytotoxicity of inorganic fungicides such as sulphur, lime sulphur, copper, silicon and Armicarb (a new formulation of potassium bicarbonate) was compared with water for the control of primary apple...

  • Identification of a major QTL together with several minor additive or epistatic QTLs for resistance to fire blight in apple in two related progenies. Calenge, F.; Drouet, D.; Denancé, C.; Van de Weg, W.; Brisset, M.-N.; Paulin, J.-P.; Durel, C.-E. // Theoretical & Applied Genetics;Jun2005, Vol. 111 Issue 1, p128 

    Although fire blight, caused by the bacterium Erwinia amylovora, is one of the most destructive diseases of apple ( Malus × domestica) worldwide, no major, qualitative gene for resistance to this disease has been identified to date in apple. We conducted a quantitative trait locus (QTL)...

  • BLOSSOM SPRAYS FOR FIRE BLIGHT. Rosenberger, Dave // Scaffolds Fruit Journal;5/06/2013, Vol. 22 Issue 7, p4 

    The article discusses the use of streptomycin (strep) sprays to protect apple and pear blossoms from the fire blight pathogen Erwinia amylovora. Streptomycin, sold as AgriMycin 17 and Firewall, is considered the most effective product for protecting blossoms except in orchards where...

  • Differential expression of CPKs and cytosolic Ca2+ variation in resistant and susceptible apple cultivars (Malus x domestica) in response to the pathogen Erwinia amylovora and mechanical wounding. Kanchiswamy, Chidananda Nagamangala; Mohanta, Tapan Kumar; Capuzzo, Andrea; Occhipinti, Andrea; Verrillo, Francesca; Maffei, Massimo E.; Malnoy, Mickael // BMC Genomics;2013, Vol. 14 Issue 1, p1 

    Background Plant calcium (Ca2+) signals are involved in a wide array of intracellular signalling pathways following pathogen invasion. Ca2+-binding sensory proteins such as Ca2+-dependent protein kinases (CPKs) have been predicted to mediate signalling following Ca2+ influx after pathogen...


Read the Article


Sign out of this library

Other Topics