Life cycle and importance of maple tar spot on Acer spp. in Mazandaran Province

Document Type : Research Paper

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Abstract

There are about 8 species and sub species of maples in northern forest of Iran. Maple tar spot is one of the most important diseases in most parts of the world .It is caused by two species of Ascomycets (Rhytisma acerinum and R. punctatum). In this study, effect of these fungi on native maples of northern forest along with the bio-ecological aspects of the fungi has been studied in East of Mazandaran. The results showed that Acer velotinum and A. capadocicum have been infected more than the others, while Acer monspessulanus subsp. turcomanicum and A. hyrcanum were not infected. A. campester and A.ibericum were infected but not as much as Acer velotinum and A. capadocicum. The first symptoms of disease appeared about 4-6 weeks after discharging the ascospores, from June to July. In late summer tar spots cover most of the leave areas and causes premature defoliation. As the fungi overwinter on leaves, destroying fallen leaves is the best management practice of the disease in parks and plantation areas.
 
 

Keywords

References

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Iranian Journal of Forest and Range Protection Research
Volume 6, Issue 2 - Serial Number 12
December 2009
Pages 88-97

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History

  • Receive Date: 08 February 2008
  • Revise Date: 30 May 2016
  • Accept Date: 03 March 2009

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