Management of late blight (Phytophthora infestans) of potato (Solanum tuberosum) through efficient spray schedule of fungicides in the north-eastern Himalayan region of India

UTPAL DEY; SHATABHISA  SARKAR; MUKESH  SEHGAL; SAIKAT  MAJUMDAR; DURGA PRASAD  AWASTHI; LICON KUMAR  ACHARYA; PRANAB  DUTTA; SUBHASH  CHANDER; RATAN KUMAR  SAHA

doi:10.56093/ijas.v94i8.147373

Authors

UTPAL DEY Krishi Vigyan Kendra (Central Agriculture University, Imphal), Sepahijala, Latiacherra, Tripura 799 103, India
SHATABHISA SARKAR Krishi Vigyan Kendra (Central Agriculture University, Imphal), Sepahijala, Latiacherra, Tripura 799 103, India
MUKESH SEHGAL ICAR-National Research Centre for Integrated Pest Management, Mehrauli, New Delhi
SAIKAT MAJUMDAR University of Science and Technology, Ri-Bhoi, Meghalaya
DURGA PRASAD AWASTHI College of Agriculture, Tripura, Lembucherra, West Tripura, Tripura
LICON KUMAR ACHARYA ICAR-National Research Centre for Integrated Pest Management, Mehrauli, New Delhi
PRANAB DUTTA College of Post-Graduate Studies in Agricultural Sciences (Central Agricultural University, Imphal), Umiam, Meghalaya
SUBHASH CHANDER ICAR-National Research Centre for Integrated Pest Management, Mehrauli, New Delhi
RATAN KUMAR SAHA College of Fisheries (Central Agricultural University, Imphal), Lembucherra, West Tripura, Tripura

https://doi.org/10.56093/ijas.v94i8.147373

Keywords:

Fungicides, Late blight, Phytophthora infestans, Solanum tuberosum, Spray schedule

Abstract

Phytophthora infestans (Mont.) de Bary, belongs to order Peronosporales is one of the most destructive phytopathogen causing late blight disease of potato (Solanum tuberosum L.). The disease symptoms appear on leaf, petiole, stem, and tubers at any stage of crop growth and may cause severe disease epidemics leading to complete defoliation and extensive yield loss. The field experiments were conducted during 2020–21 and 2021–22 at Chesrimai GP, Charilam block, Sepahijala, Tripura to find out the effective management strategies with fungicides to mitigate the losses caused by the devastating disease. The experiment was laid out in a randomized block design (RBD) in 3 replications with 8 treatments having different fungicides in different combinations for determining the best spray schedule against late bight disease. Results revealed that one spraying of Mancozeb 75% @0.25% at 35 days after sowing (DAS), second spraying of Cymoxanil 8% + Mancozeb 64% @0.25% at 42 DAS, and third spraying of Mancozeb 75% @0.25% at 49 DAS and fourth spraying of Cymoxanil 8% + Mancozeb 64% @ 0.25% at 56 DAS recorded the best performing treatment, with the least mean disease severity (10.54 and 7.30%), the least mean disease incidence (15.00 and 12.75%), the least coefficient of disease index (CODEX) value (1.58% and 0.93%), and highest tuber yield (21.27 and 21.68 t/ha) during 2020–21 and 2021–22, respectively. In addition, there were 26.6 and 27.7% increase in yield over control during 2020–21 and 2021–22, respectively and the pooled incremental cost benefit ratio (ICBR) of 1:16.09 was found to be highest among all other treatments. Efficient spray schedule of prophylactic/ preventive spray with contact fungicide followed by spraying with translaminar/systemic + contact fungicide can effectively manage the late blight disease of potato under field conditions.

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References

Al Harethi A A, Abdullah Q Y M, Al Jobory H J, Al Aquil S A and Arafa R A. 2023. First report of molecular identification of Phytophthora infestans causing potato late blight in Yemen. Scientific Reports 13: 16365.

Alexandrov V. 2011. Efficacy of some fungicides against late blight of tomato. Bulgarian Journal of Agricultural Science 17(4): 465–69.

Bhat M N, Tyagi P and Singh B P. 2009. Efficacy of translaminar fungicides against late blight of potato in sub-tropical plains. Journal of Mycology and Plant Pathology 39: 107–09.

Bruck R I, Fry W E, Apple A E and Mundt C C. 1980. Effect of protectant fungicides on the developmental stages of Phytophthora infestans in potato foliage. Phytopathology 71: 164–66.

Chakraborty A and Banerjee H. 2016. Effective management strategies against late blight of potato. SAARC Journal of Agriculture 14(1): 111–17.

Chakraborty A and Mazumdar D. 2012. Development of effective spray schedule for the management of late blight of potato in plains of West Bengal. Potato Journal 39: 92–94.

FAOSTAT. 2017. Food and agriculture data. http://www.fao.org/ faostat/en/#data/QCinfo

FAOSTAT. 2020. FAOSTAT, FAO Statistical Databases.Available at: https://www.potatonewstoday.com/2022/03/28/fao-updates- global-potato-statistics/

FAOSTAT. 2022. FAOSTAT database. Available at: http://www. fao.org/faostat/en/#data/QC

Gomez K A and Gomez A A. 1984. Statistical Procedures for Agricultural Research, International Rice Research Institutes. John Willy and Sons, New York, Chickester, Brisbane, Torento, Singapore, pp. 643.

Haveri N, Thulasiram K, Shashidhar K R and Santhosha H M. 2018. Effective management strategy against potato late blight incited by Phytophthora infestans. International Journal of Current Microbiology and Applied Science 7(9): 2688–95.

Haverkort A J, Struik P C, Visser R G F and Jacobsen E. 2009. Applied biotechnology to combat late blight in potato caused by Phytophthora Infestans. Potato Research 52(3): 249–64.

Hembram S, Patsa R, Baskey S and Hansda M. 2018. Effect of weather indices on late blight of potato and its management in northern district of West Bengal, India. International Journal of Current Microbiology and Applied Science 7(9): 1737–43.

Khadka R B, Chaulagain B, Subedi S, Marasini M, Rawal R, Pathak N and Sharma P D. 2020. Evaluation of fungicides to control potato late blight (Phytophthora infestans) in the plains of Nepal. Journal of Phytopathology 168(5): 245–53.

Khalid H and Grover A. 2021. Phytophthora infestans (Late blight of potato): An overview. Advances in Agriculture Sciences 30: 35–60.

Lal M, Yadav S and Singh B P. 2017. Efficacy of new fungicides against late blight of potato in subtropical plains of India. Journal of Pure and Applied Microbiology 11: 599–603.

Manjunath B, Devaraja S K N, Vasanthi B G and Manjunath G. 2017. Assessment on management of late blight in potato incited by Phytophthora infestans. International Journal of Plant Protection 10(2): 410–14.

Mayee C D and Datar V V. 1986. Phytopathometry, pp. 66. Tech. Bull-l Marathwada Agricultural University, Parbhani, Maharashtra.

Mc Kinney. 1923. A new system of grading plant diseases. Journal of Agricutural Research 26: 195–218.

Mhatre P M, Lekshmanan D, Venkatasalam E P and Bairwa A 2021. Management of the late blight (Phytophthora infestans) disease of potato in the southern hills of India. Journal of Phytopathology 169(1): 52–61.

Muchiri F N, Nada R D, Aanya O M, Nyankanga R O and Ariga E S. 2009. Efficacy of fungicide mixtures for the management of Phytophthora infestans (US-1) on potato. Phvtoprotection 90: 19–29.

NHRDF. 2016. Area-production statistics. National Horticultural Research and Development Foundation, India.

Pasalkar J, Gorde G, More C, Memane S and Gaikwad V. 2024. Potato leaf disease detection using machine learning. Current Agriculture Research Journal 11(3): 949–54.

Rani A, Bhat M N and Singh B P. 2009. Efficacy of cymoxanil + mancozeb in controlling late blight of potato in sub-tropical plains. Journal of Mycology and Plant Pathology 39: 55–58.

Roy B. 2015. Khetriya Phsaler Beej Utpadaner Adhunic Paddhati (Quality Seed Production Technology of Field Crops). Publ. Director of Farm, Uttar Banga Krishi Viswavidyalaya, Pundibari, Cooch Behar, West Bengal, pp. 95–105.

Santosh B, Mounika K and Simon S. 2021. In vivo evaluation of bio- resources against late blight of potato caused by Phytophthora infestans, plant growth and yield of potato (Solanum tuberosum L.). Journal of Plant Pathology and Microbiology 12: 580.

Sharma P and Saikia M K. 2013. Management of late blight of potato through chemicals. IOSR Journal of Agriculture and Veterinary Science 2(2): 23–26.

Shutong W, Tongle H U, Fengqiao Z, Forrer H R and Keqiang C A O. 2007. Screening for plant extracts to control potato late blight. Frontiers of Agriculture in China 1(1): 43–46.

Singh S S, Mer R and Renu. 2023. Field evaluation of combination fungicides against late blight disease in potato (Solanum tuberosum). The Indian Journal of Agricultural Sciences 93(2): 217–20.

Wiik L. 2014. Potato late blight and tuber yield: Results from 30 years of field trials. Potato Research 57: 77–98.