تقدير فاعلية المبيدين الفطريين بينسيكورون و تولكلوفوس-ميثيل في مكافحة الفطر Rhizoctonia solani Kuhn على البطاطا-البطاطس

Abstract EN

Results obtained indicated that pcncycuron (12.5%) and tolclofos-methyl (10%) were efficacy against black scurf disease caused by Rhizoctonia solani Kuhn on potato tubers, when applied as a dressing of infected seed potato tubers before planting, at 0.25 and 0.2 g a.

i.

/ 1 kg tubers, respectively The effectiveness of these two treatments was 84.3-84.8% in 1998, and 99.2-99.3% in 1999, respectively.

The treatment of infected tubers with these two fungicides improved the emergence of sprouts at the soil surface and increase potato yield.