Proceedings: Plant Sciences

, Volume 99, Issue 3, pp 265–269 | Cite as

Rhizolex 50 WP—a new fungicide to control the foot rot of betelvine (Piper betle L.) caused bySclerotium rolfsii Sacc.

  • Santosh K Gangwar
  • B Dasgupta


Rhizolex 50 WP O,O-dimethyl-O(2,6-dichloro-4-methyl-phenyl)-phosphorothioate, a new fungicide, was evaluated againstSclerotium rolfsii Sacc., the causal organism of foot rot of betelvine (Piper betle L.). The fungicide,in vitro, arrested mycelial growth and sclerotial germination ofSclerotium rolfsii at 50 ppm and above concentration, maximum effect being at 100 and 200 ppm for inhibition of mycelial growth and Sclerotial germination respectively. Two months old potted betelvine plants were inoculated with mycelial culture ofSclerotium rolfsii by soil mixing method. Fungicide was applied by drenching method in desired concentration and on desired date. Fungicide treated pots showed lower percentage of vine mortality than the check (no fungicide). There was no significant difference in per cent mortality of vines under 0·2 and 0·4% fungicide applied at same date however higher dose (0·4%) of fungicide applied at 2 days after inoculation had shown lower percentage of vine mortality as compared to the lower dose (0·2%) at 5 days after inoculation. Thus, both concentration of Rhizolex 50 WP and time of its application play an important role in the control of foot rot disease of betelvine.


Rhizolex 50 WP betelvine foot rot Sclerotium rolfsii disease control 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Agarwal S C and Singh S P 1969 Efficacy of some fungicides in controlling foot rot of wheat;Indian Phytopathol. 22 476–479Google Scholar
  2. Agnihotri V P, Sen C and Srivastava S N 1975 Role of fungitoxicants in the control ofSclerotium root rot of sugarbeet,Beta vulgaris L.;Indian J. Exp. Biol. 13 89–91Google Scholar
  3. Aycock R 1959 Soil treatment for control ofSclerotium rolfsii in Dutch iris;Plant Dis. Rep. 43 283–286Google Scholar
  4. Aycock R 1966 Stem rot and other diseases caused bySclerotium rolfsii;N. C. Agric. Exp. St. Tech. Bull. 174 202Google Scholar
  5. Dasgupta B 1981 Chemical control of root rot of wheat caused bySclerotium rolfsii Sacc.;Pestology 5 9–12Google Scholar
  6. Ghosh S K and Gemawat P D 1976 Evaluation of fungicides againstAlternaria solani in vitro;Proc. Indian Acad. Sci. B84 155–158Google Scholar
  7. Gould C J and Mclean 1954 Soil treatment for control of fungi;Proc. Bulb Growers’ Short Course, March 4–5, Taccoma, Washington, pp 24–26Google Scholar
  8. Maiti S and Sen C 1976 Fungal diseases of betelvine;PANS 25 150–157Google Scholar
  9. Mukhopadhyay A N and Thakur R P 1971 Control ofSclerotium root rot of sugarbeet with systemic fungicides;Plant Dis. Rep. 55 630–634Google Scholar
  10. Pan S and Sen C 1976 Fungitoxic properties of four new fungicides;Z. Pflanzenkr. Pflanzenschutz. 83 577–583Google Scholar
  11. Sen C 1986 Advances in management ofSclerotium rolfsii; inRecent advances in plant pathology (eds) A Husain, B P Singh, K Singh and V P Agnihotri (Lucknow: Print House) pp 445–464Google Scholar

Copyright information

© Indian Academy of Sciences 1989

Authors and Affiliations

  • Santosh K Gangwar
    • 2
  • B Dasgupta
    • 1
  1. 1.Department of Plant PathologyBidhan Chandra Krishi ViswavidyalayaKalyaniIndia
  2. 2.Regional Sericultural Research StationAllikuttai POGandhi NagarIndia

Personalised recommendations