Advertisement

Indian Phytopathology

, Volume 71, Issue 1, pp 163–165 | Cite as

Performance of plant defence activators against Podosphaera pannosa causing rose powdery mildew

  • Vijay Kumar
  • Sunita Chandel
SHORT COMMUNICATION
  • 2 Downloads

Abstract

Different plants defence activators were evaluated against the rose powdery mildew (Podosphaera pannosa) under green house conditions. Plant defence activators were tested at two concentrations i.e. 0.050 and 0.075% before the appearance of disease. The highest disease control of 78.48% was recorded in the plants sprayed with dipotassium orthophosphate followed by salicylic acid (74.62%), β-aminobutyric acid (72.16%), potassium silicate (64.69%) and potassium bicarbonate (66.79%) at concentration of 0.075% in two consecutive years (2015, 2016). The least disease control (54.95%) was observed in treatment with calcium silicate. At lower concentration (0.05%) disease control was comparatively lesser than the higher concentration of the plant defence activators. First spray of the SAR chemical was effective for 21 days and after that the disease appeared.

Keywords

Conidia Disease control Plant defence activators Rose powdery mildew 

References

  1. Apte AR, Kamble SS (2008) Efficacy of carbendazim in combating castor blight in western Maharashtra. Bioinfolet 5:73–74Google Scholar
  2. Gastelum FR, Rodriguez GH, Valenzuela CM (2014) First report of powdery mildew (Podosphaera pannosa) of roses in Sinaloa, Mexico. Plant Dis 98:1442CrossRefGoogle Scholar
  3. Gupta SK, Gupta YC, Thakur R (2004) Role of environment factors on the progress of mildew (Sphaerotheca pannosa var. rosae) of rose and its management under polyhouse conditions. J. Ornam Hortic 7:366–369Google Scholar
  4. Jamali ZAH, Sharifi TA (2005) The effect of several compounds on the induction of resistance to powdery mildew in cucumber. Iran J Pathol 41:479–494Google Scholar
  5. NHB (2015). http://www.nhb.gov.in. Accessed Apr 2016
  6. Sahni ML (1987) Reaction of some rose cultivars to powdery mildew fungus. Indian Phytopathol 40:534–535Google Scholar
  7. Sudhagar M, Phil M (2013) Production and marketing of cut flower (rose and gerbera). Int J Bus Manag 2:15–25Google Scholar
  8. Vimala R, Suriachandraselvan M (2009) Influence of antagonistic agent, plant products and chemical agents on the powdery mildew disease of bhendi and its production. J Biopestic 1:130–133Google Scholar
  9. Yanar Y, Yanar D, Gebologlu N (2011) Control of powdery mildew (Leveillula taurica) on tomato by foliar sprays of liquid potassium silicate (K2SiO3). Afr J Biotechnol 10:3121–3123CrossRefGoogle Scholar
  10. Zeighaminejad R, Sirchi GRS, Mohamadi H, Aminai MM (2016) Induction of resistance against powdery mildew by beta aminobutyric acid in squash. J Appl Bot Food Qual 89:176–182Google Scholar

Copyright information

© Indian Phytopathological Society 2018

Authors and Affiliations

  1. 1.Department of Plant PathologyDr. Y.S. Parmar University of Horticulture and ForestrySolanIndia

Personalised recommendations