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Indian Phytopathology

, Volume 71, Issue 2, pp 213–218 | Cite as

Epidemiological relations to population dynamics of Phytophthora spp. in Mandarin

  • S. P. Wagh
  • R. M. Gade
  • R. S. Lad
  • J. Adinarayana
  • K. B. V. N. Phanindra
RESEARCH ARTICLE
  • 2 Downloads

Abstract

Fixed plot survey was undertaken to plot correlation between environmental factors with population of Phytophthora spp. in soil and the disease intensity during June 2015 to May 2016. Agro-meteorological data was recorded by using wireless sensors (for air temperature 107 Temperature probe, for relative humidity HC2S3 and for rainfall measurement Texas Electronic rain gauge) in selected plots. All four orchards were found infected with Phytophthora in the range of 3.2–43.6 cfu/g of soil. There was consistent increase in pathogen population in all plots with increase in rainfall, relative humidity with decrease in temperature and vice versa. At high rainfall condition intensity of root rot was increased to 35.81 per cent in the month of August and gummosis (41.01%) was also increased in the month of October with average propagules of 25.84 cfu/g of soil. Increase in temperature decreased intensity of gummosis (26.29%) and root rot (20.09%) in the month of May, with the average propagules, i.e., 4.56 cfu/g of soil. Present findings suggest that, humidity and rainfall were significantly correlates with population dynamics of Phytophthora spp. and disease intensity, while temperature was found inversely proportional.

Keywords

Citrus Gummosis Intensity Propagules Root rot Phytophthora 

Notes

Acknowledgements

The authors are thankful to the Information Technology Research Academy (ITRA), Ministry of Information Technology, GOI, New Delhi for providing fellowship and funding to conduct this research work. We are also thankful to Indian Institute of Technology (IIT) Bombay and Indian Institute of Technology (IIT), Hyderabad for providing sensor-based data on environmental factors of all four experimental plots.

References

  1. Ahmed Y, Donghia AM, Ippolito A, Shimy HE, Cirvilleri G, Yaseen T (2012) Phytophthora nicotianae is the predominant Phytophthora spp in citrus nurseries in Egypt. Phytopathologia Mediterranea 51(3):519–527Google Scholar
  2. Benson DM (1984) Influence of pinebark, matric potential and pH on sporangium production of Phytophthora cinnamomi. Phytopathology 74:1359–1363CrossRefGoogle Scholar
  3. Benson DM, Grand LF, Vernia CS (2006) Temporal and spatial epidemiology of Phytophthora root rot in fraser fir plantations. Plant Dis.  https://doi.org/10.1094/PD-90-1171 Google Scholar
  4. Chaudhary J, Banyal DK (2013) Effect of environmental factors on Phytophthora nicotianae var. nicotianae and evaluation of bell pepper germplasm. Indian Phytopathol 66(1):41–45Google Scholar
  5. Dhakad UK, Kaur S, Thind SK (2016) Seasonal population of Phytophthora nicotianae var. parasitica in Kinnow mandarin orchards under Punjab conditions. Indian Phytopathol 69(4s):121–123Google Scholar
  6. Gade RM (2012) Biological and chemical management of Phytophthora root rot/collar rot in citrus nursery. Bioscan 7(4):631–635Google Scholar
  7. Gade RM, Armarkar S (2011) Growth promotion and disease suppression ability of Pseudomonas fluorescens in Acid lime. Arch Phytopathol Plant Prot 44(10):943–950CrossRefGoogle Scholar
  8. Gade RM, Koche Mina D (2012) Integrated disease management for root rot & gummosis in Nagpur mandarin. Indian Phytopathol 65(3):272–275Google Scholar
  9. Gade RM, Bambawale OM, Sangle UR, Shinde VB (2006) Chemical management of gummosis in Nagpur mandarin (Citrus reticulata Blanco). Pestic Res J 18(2):169–172Google Scholar
  10. Jeffers SN, Martin SB (1986) Comparison of two media for Phytophthora and Pythium spp. Plant Dis 70:1038–1043CrossRefGoogle Scholar
  11. Koche MD, Gade RM, Mohod YN (2015) Distribution, pathogenicity and efficacy of some fungicides against Phytophthora parasitica. J Mycopathol Res 53(2):299–302Google Scholar
  12. Lende AS, Gade RM, Shitole AS (2015) Management of phytophthora root rot in nagpur mandarin by using integrated approach. Ecoscan 8:331–336Google Scholar
  13. Lutz AL, Menge JA, Ferrin DM (1991) Increased germination of Propagules of Phytophthora parasitica by heating citrus soil sampled during winter. Am Phytopathol Soc 81(8):865–872CrossRefGoogle Scholar
  14. Matheron ME, Matejka JC (1997) Distribution and seasonal population dynamics of Phytophthora citrophthora and P. parasitica in Arizona citrus orchards and effect of fungicides on tree health. Plant Dis 81:1384–1390CrossRefGoogle Scholar
  15. Meena RL, Mathur AC, Shivpuri A (2011) Environmental factors affecting disease development and viability of smut of pearl millet pathogen in soil. Indian Phytopathol 64(4):363–366Google Scholar
  16. Mounde LG, Ateka EM, Kihurani AW, Wasilwa L, Thuranira EG (2009) Occurrence and distribution of citrus gummosis Phytophthora spp. in Kenya. Afr J Hortic Sci 2:56–68Google Scholar
  17. Naqvi SAMH (1999) Distribution of Phytophthora spp. and mating types pathogenic to citrus in Vidarbha and Marathwada region of Maharashtra and North Eastern States of India. In: Citrus proceeding international symposium on citriculture, pp 1073–1080Google Scholar
  18. Timmer LW, Menge JA (1988) Induced diseases in compendium of citrus diseases. APS Press, St. Paul, pp 22–24Google Scholar
  19. Timmer LW, Zitako SE, Gottwald TR, Grahan JH (2000) Phytophthora brown rot of citrus: temperature and moisture effects on sporangium production and dispersion. Plant Des 94:157–163Google Scholar

Copyright information

© Indian Phytopathological Society 2018

Authors and Affiliations

  • S. P. Wagh
    • 1
  • R. M. Gade
    • 1
  • R. S. Lad
    • 1
  • J. Adinarayana
    • 2
  • K. B. V. N. Phanindra
    • 3
  1. 1.Dr. Panjabrao Deshmukh Krishi VidyapeethAkolaIndia
  2. 2.Indian Institute of Technology BombayMumbaiIndia
  3. 3.Indian Institute of Technology HyderabadKandiIndia

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