Identification of effective fungicides for the management of false smut disease of rice


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Authors

  • D Ladhalakshmi ICAR-Indian Institute of Rice Research, Hyderabad – 500030, Telangana, India
  • M Srinivas Prasad ICAR-Indian Institute of Rice Research, Hyderabad – 500030, Telangana, India
  • Gouri Shankar Laha ICAR-Indian Institute of Rice Research, Hyderabad – 500030, Telangana, India
  • Ram Singh Department of Agriculture, MM (DU), Mullana, Ambala, Haryana
  • V Prakasam ICAR-Indian Institute of Rice Research, Hyderabad – 500030, Telangana, India
  • Jagjeet Singh Lore Punjab Agricultural University, Ludhiana -141004, Punjab, India
  • D Krishnaveni ICAR-Indian Institute of Rice Research, Hyderabad – 500030, Telangana, India
  • C Kannan ICAR-Indian Institute of Rice Research, Hyderabad – 500030, Telangana, India

Keywords:

False smut, fungicides, management, rice, Ustilaginoidea virens

Abstract

Rice false smut pathogen Ustilaginoidea virens (teleomorph: Villosiclava virens) replaces the grain into powder form and causes direct economic yield loss. High intensity of the disease was reported from almost all the rice-growing regions of India during the favorable years with conducive climate conditions like drizzling or cooler climate during the booting to flowering stage. With scanty knowledge on host plant
resistance, the disease has to be managed with available fungicides to prevent economic yield loss. Field trials were formulated and evaluated the efficacy of nine fungicides through the All India coordinated Rice Improvement Programme at two false smut hot spot locations, viz. CCSHAU Rice Research Station, Kaul, and Punjab Agricultural University, Ludhiana for two successive years (2016 and 2017). Each fungicide
was sprayed once at the booting stage, followed by another application at ten days. Among the tested fungicides, azoxystrobin 18.2% + difenoconazole 11.4% w/w SC @ 1.0 ml/l and propiconazole (0.1%) significantly increased the grain yield by reducing the false smut disease severity at tested locations. 

Additional Files

Submitted

2023-04-05

Published

2023-04-06

How to Cite

Identification of effective fungicides for the management of false smut disease of rice. (2023). Indian Journal of Plant Protection, 50(4), 131-136. https://epubs.icar.org.in/index.php/IJPP/article/view/135088