RESISTANCE OF RHIZOCTONIA SOLAN! TO CERTAIN FUNGICIDES AND THEIR IMPACT ON BENEFICIAL MICROORGANISMS

Sami Shafik Ramses;

Abstract


The isolation trials were canied out from soil prepared for cotton cultivation at different locations as Basion province in Gharbia governorate and Sakha province at Kafr El-Sheikh governorate. Data indicate that several isolates of both R. solani and Fusarium monifilorme were obtained and have been tested for their sensitivity to three tested fungicides i.e., pencycuron, tolclofos-methyl and carboxin. One isolate {No2) of R. solani from Kafer El-Sheikh governorate, showed high resistance against higher concentrations (up to 1500 ppm) ofto1clofos-methyl with remarkable activity of mycelial growth on PDA medium treated with such fungicide. Acquired resistance was retained after five transfers on fungicide-free medium.


Other data

Title RESISTANCE OF RHIZOCTONIA SOLAN! TO CERTAIN FUNGICIDES AND THEIR IMPACT ON BENEFICIAL MICROORGANISMS
Other Titles lمقاومة قطر ريزوكتونيا سولانى لبعض المبيدات الفطرية وعلاقتها بالكائنات الدقيقة النافعة
Authors Sami Shafik Ramses
Issue Date 2001

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