Get rid of white rot disease of onion

  • White rot disease in onions is caused by a fungus called Sclerosium sepi veeram or Sclerosium rolf sai.

  • Symptoms of this disease: The upper part of onion rotten in the soil and the white mold forms on the infected part and above the ground, a hard dotted structure is formed like light brown mustard seeds, which are called sclerosia. The infected plants then proceed to wither and then dry up.

  • Chemical treatment :- for prevention of these disease use Carbendazim 12% + Mancozeb 63% @ 300 gram/acre or  Kasugamycin 5% + Copper Oxychloride 45% WP @ 300 gram/acre or Chlorothalonil 75% WP @ 250 gram/acre or Thiophanate Methyl 70% WP @ 300 gram/acre 

  • Biological treatment :- use Pseudomonas Fluorescens @ 250gram/acre or Trichoderma Viride@ 500 gram/acre. 

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