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Gildana Moayedi1 , Reza Mostowfizadeh-Ghalamfarsa,
Volume 1, Issue 2 (9-2012)

Trichoderma form-species are among of the important antagonists of plant pathogenic fungi and also induce resistance in field crops. Therefore their isolation and identification could be helpful for applying them in biological control. They isolate by pour soil diluted suspension on Dawet, Peptone – Rose Bengal, or modified Potato- Dextrose-Agar mediums. Species can identify based on colony characteristics, growth characteristics and morphological characteristics of conidiophores, phialids, and conidia. Eighty-five isolates of Trichoderma from 25 soil samples, from 8 regions of the Fars province sugar beet fields, isolated and purified with this method. With studied their characteristics eight form-species of Trichoderma identified with names: T. asperellum, T. atroviride, T. brevicompactum, T. harzianum, T. longibrachiatum, T. spirale, T. tomentosum and T. virens . Methods of isolation, identification and morphological characteristics of these fungi described.
Somayeh Mousavi, Mahdi Arzanlou,
Volume 5, Issue 2 (8-2016)

Mousavi S. & Arzanlou M. 2016. Cercospora leaf spot disease of sugar beet. Plant Pathology Science 5(2):13-22.

Cercospora leaf spot disease is one of the most important foliar diseases of sugar beet. Over one third of the sugar beet cultivation areas of the world has been affected by this disease. Cercospora beticola is the causal agent of this disease and a high level of interspecific variation of its morphology and genetics has been reported. Disease management is mainly achieved by a combination of cultural practices, cultivation of resistant varieties and application of fungicides. Due to the economic importance of the disease in Iran, some of the different aspects of Cercospora leaf spot disease, including the introduction of disease as well as the biology of the fungus, disease cycle and the efficient measures of disease management, has been reviewed in this paper.

Leila Motieeian, Mehdi Nasr Esfahani,
Volume 5, Issue 2 (8-2016)

Motieeyan  L.  &  Nasr-Esfahani  M.  2016. Management  method of sugar beet cyst nematode. Plant Pathology Science 5(2):32-41.

Sugar beet, is one of the basic source of the raw material for sugar industry in Iran. The beet cyst nematode, Heterodera schachtii Schmidt, 1871, is one of the most damaging pathogens of sugar beet. This nematode has a wide host range, including 218 plant species from 95 genus and 23 families, which include some of the important field crops, ornamental plants and weeds. Nematode management methods include avoiding of cultivation in highly infested soils, disease scape by early cultivation, crop rotation, using resistant varieties, application of bioagents, applying of organic fertilizers, animal manure, plant waste materials, compost, vermicompost and also soil solarization and chemical control are described here.

Mounes Bakhshi,
Volume 7, Issue 1 (3-2018)

Bakhshi M. 2018. Important criteria for identification of the Cercospora species. Plant Pathology Science 7(1):1-14.

Species of the genus Cercospora are important plant pathogenic fungi with worldwide distribution. They are often associated with leaf spots, occurring on a wide range of hosts in almost all major families of dicots, most monocot families, and even some gymnosperms and ferns. Different characteristics, such as morphology, toxin production and host specificity were used to distinguish species. New research findings have shown that a polyphasic approach, combining morphological, ecological and phylogenetic species concepts, which are discussed in this article, proved the most effective method to distinguish species of the genus Cercospora. Accurate identification of these plant pathogens is the first step to adopt the appropriate management strategies for their disease control. Therefor, it is recommended that, in order to accurate identification of the species of the genus Cercospora, they should be studied and reviewed on the basis of these criteria.

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