Mandarin Orange: Phytophthora species - Jagtap, Gajendra;Thosar, Ratna;Dey, Utpal
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The highest disease incidence and severity noticed in Nanded district. The disease severity was increased in the month of June and it is highest in the month of September when the temperature ranged between 18-38.5oC, humidity between 31-91% and rainfall intensity ranged between 1.5-27.5 mm with 3-6 rainy days. The heavy and more number of rains in July to September helped in spreading of disease through run off and rain splashes and at the same time, conductive temperatures and humidity conditions stimulated the development of gummosis and hence increased severity. Though day temperatures…mehr

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Produktbeschreibung
The highest disease incidence and severity noticed in Nanded district. The disease severity was increased in the month of June and it is highest in the month of September when the temperature ranged between 18-38.5oC, humidity between 31-91% and rainfall intensity ranged between 1.5-27.5 mm with 3-6 rainy days. The heavy and more number of rains in July to September helped in spreading of disease through run off and rain splashes and at the same time, conductive temperatures and humidity conditions stimulated the development of gummosis and hence increased severity. Though day temperatures remains conductive for most part of the year in different districts of Marathwada, night temperature and slight drizzles play important role in disease development. Slight drizzles provide free water for entry of pathogen through natural openings or injuries. Bioagent Trichoderma harzianum found most effective against both species. Botanical Lantana found effective. Among all fungicides tested Dimethomorph was found most effective against both the Phytophthora spp.
Autorenporträt
M.Sc. (Agri), Ph.D NET (ICAR). Norman Borlaug Fellow 2008 (USA). He is a recipient of Norman Borlaug International Fellowship - 2008 and worked at Plant Disease Diagnostic Laboratory, Texas A&M University, USA. He did his doctorate degree from GBPUA&T, Pantnagar with specialization in Plant Pathology and presently working as a Assistant Professor.