TITLE

hydrangeas

AUTHOR(S)
Chase, A. R.; Daughtrey, Margery
PUB. DATE
March 2010
SOURCE
GPN: Greenhouse Product News;Mar2010, Vol. 20 Issue 3, p16
SOURCE TYPE
Periodical
DOC. TYPE
Article
ABSTRACT
The article offers information on various diseases that occur in hydrangeas, and the ways to control them. It states that Ascochyta leaf spot is caused by the pathogen, Ascochyta hydrangeae, and can be controlled by using pathogen-free cuttings. It mentions that Cercospora leaf spot, caused by Cercospora hydrangeae, can be controlled by avoiding overhead irrigation, and Powdery mildew, caused by Erysiphe polygonii, can be controlled by using spacing to reduce humidity around the crop.
ACCESSION #
48839592

Tags: PLANT diseases;  HYDRANGEAS;  LEAVES -- Diseases & pests;  LEAF spots;  POWDERY mildew diseases;  ASCOCHYTA;  PATHOGENIC microorganisms

 

Related Articles

  • From the nursery. Adam, John // Horticulture Week;5/29/2009, p28 

    The article presents the plant diseases in Great Britain. Powdery mildew is a disease active on several crops particularly Acer, Aster, Crataegus, Euonymus and Euphorbia. Lupin anthracnose is a disease in which it creates leaf spots, and has a distinctive spiralling of the stems. Tortrix moth is...

  • Identificati�n y Control Qu�mico de los Agentes Causales de la Mancha Foliar y la Cenicilla del Tomatillo (Physalis ixocarpa Brot.) en el Norte de Sinaloa, M�xico. F�lix-Gast�lum, Rub�n; �vila-D�az, Jeov�n Alberto; Valenzuela-Cota, Beatrix Odotte; Trigueros-Salmer�n, Jos� �ngel; Longoria-Espinoza, Rosa Mar�a // Revista Mexicana de Fitopatolog�a;2007, Vol. 25 Issue 1, p1 

    The article presents a study on causal agents of leaf spot and powdery mildew of husk tomato in northern Sinaloa, Mexico. It states that the aims of the study were to identify the causal agents of these two diseases, determine the sensitivity of the causal agents to three fungicides in vitro,...

  • Spot powdery mildew early to save kalanchoe.  // GMPRO - Greenhouse Management & Production;Jun2006, Vol. 26 Issue 6, p10 

    Provides information on powdery mildew in kalanchoes. Occurrence of tan scabby pots on leaves of the plant which may indicate affliction of the disease according to plant pathology professor Gary Moorman of Penn State University in University Park, Pennsylvania; Actions to be taken to deal with...

  • Poinsettia DISEASES: PAST, PRESENT AND FUTURE. Chase, A. R. // GMPRO - Greenhouse Management & Production;Sep2004, Vol. 24 Issue 9, p34 

    Presents information on several diseases of poinsettias and control strategies to prevent the diseases. Alternaria leaf spot; Botrytis blight; Powdery mildew; Root and stem rots.

  • Start flower buds. ADLAN, JOHN // Horticulture Week;2/21/2014, p22 

    The article offers several tips on starting flower buds, which include frost protection, prevention of bacteria in plants, and prevention of damping off of plants. It says that Hydrangeas should be exposed to enough frosty weather to facilitate flower bud production. It mentions several topics...

  • Recently introduced diseases of ornamental plants. Henricot, Béatrice // Plantsman: New Series;Dec2009, Vol. 8 Issue 4, p216 

    The article offers information on the ornamental plants' diseases discovered in the gardens of Great Britain. It states that due to plant trade globalization, gardens in the country are being exposed to new varieties of plant pathogens including leaf spot and blight fungi, powdery mildews and...

  • This Month in Diseases. Chase, A. R. // GPN: Greenhouse Product News;Feb2009, Vol. 19 Issue 2, p16 

    The article presents information on Myrothecium, which has become a common disease on greenhouse ornamentals in the U.S. Myrothecium roridum attacks many foliage plants causing leaf spots generally and petiole rot on tissue-cultured plants such as spathiphyllum and syngonium. Crops afflicted by...

  • Effects of inoculum density, leaf wetness duration and nitrate concentration on the occurrence of lettuce leaf spot. Nao, Masahiro // Journal of General Plant Pathology;Jun2008, Vol. 74 Issue 3, p208 

    In Ehime Prefecture, Japan, lettuce leaf spot ( Septoria lactucae) caused huge losses in marketable lettuce yields. To explore potential measures to control disease outbreaks, the effects of inoculum density, leaf wetness duration and nitrate concentration on the development of leaf spot on...

  • Black leaf spot of Japanese persimmon ( Diospyros kaki), a new disease caused by Adisciso kaki sp. nov. Yamamoto, Jun; Tanaka, Kazuaki; Ohtaka, Nobuaki; Sato, Toyozo // Journal of General Plant Pathology;Mar2012, Vol. 78 Issue 2, p99 

    A new defoliating disease with severe leaf spot of Japanese persimmon ( Diospyros kaki) was found in Shimane Prefecture. A fungus, isolated from the ascospores that had formed on the leaf spot, was demonstrated to reproduce the symptoms on leaves and described as a new species, Adisciso kaki,...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics