Saima Naseer, Imran Nadeem, Azhar Mustafa, Javed A. Shah, Salman Ahmed, Muhammad Saqib, Tahira Abbas, Yasir Ali


Tomato (Lycopersicon esculentum) production is severely affected by the tomato leaf curl virus (TLCV) and its vector populations under favourable environmental conditions. This disease and its vector Bemisia tabaci are effectively controlled by the plant extracts and many chemicals. Therefore, current study was designed in the Research Area of Plant Pathology Research Institute, Ayub Agriculture Research Institute (AARI) Faisalabad following Randomized Complete Block Design (RCBD) during crop seasons 2018-2019. The data for disease incidence were recorded based on disease rating scale proposed by Khalid (2013) and subjected to analysis of variance at a 5% level of significance. Correlation and regression analysis were performed, to determine the relationship between environmental factors and disease incidence. Only two varieties i.e. Naqeeb and Morgal indicated a resistant response against disease development. All epidemiological variables showed a positive association with the disease incidence and Bemisia tabaci populations except relative humidity. Maximum disease incidence and whitefly population were observed at the highest temperature (34-41ºC), the lowest temperature (22-24ºC), rainfall (1.4-4.5 mm) and wind speed (3.1-5.8 km/h) whereas, this populations decreased by increasing relative humidity from 15-25%. Among chemicals and plant extracts, acetamiprid and neem proved to be the most effective for the management of disease incidence and whitefly populations, respectively.


Disease incidence, meteorological variables, chemicals, tomato.

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Achari, R., B. Fakruddin, K. T. Rangaswamy, D. L. Savithramma, K. nath, N. Nagaraju and H. A. Prameela. 2019. Screening for Identification of Resistance Sources of Tomato against Tomato Leaf Curl Virus (ToLCV) from Segregating Population and Private Sector Hybrids under Natural Disease Incidence. International Journal of Current Microbiology and Applied Sciences, 8: 844-852.

Ali, Y., M. A. Khan, M. Atiq, W. Sabir, A. Hafeez and F. A. Tahir. 2017. Optimization of Environmental Factors Conducive For Stripe Rust of Wheat. Pakistan Journal of Phytopathology, 29: 239-245.

Aregbesola, O. Z., J. P. Legg, L. Sigsgaard, O. S. Lund and C. Rapisarda. 2019. Potential impact of climate change on whiteflies and implications for the spread of vectored viruses. Journal of Pest Science, 92: 381-392.

Chaudhary, A. and K. Ma. 2016. Spatio-temporal Pattern of Okra Yellow Vein Mosaic Virus and its Vector in Relation to Epidemiological Factors. Journal of Plant Pathology & Microbiology, 7: 360.

Dhaliwal, M. S., S. K. Jindal, A. Sharma and H. Prasanna. 2020. Tomato yellow leaf curl virus disease of tomato and its management through resistance breeding: A review. The Journal of Horticultural Science and Biotechnology, 95: 425-444.

FAO. 2018. Food and Agriculture Organization. Statistical Annex. OECD-FAO Agricultural Outlook 2018-2027. OECD, 229-317.

Guo, Q., Y. N. Shu, C. Liu, Y. Chi, Y. Q. Liu and X. W. Wang. 2019. Transovarial transmission of tomato yellow leaf curl virus by seven species of the Bemisia tabaci complex indigenous to China: Not all whiteflies are the same. Virology, 531: 240-247.

Harshita, A., D. Saikia and D. Anjumoni. 2019. Population dynamics and management of whitefly, Bemisia tabaci in tomato ecosystem, Solanum lycopersicum L. Journal of Entomology and Zoology Studies, 7: 1232-1235.

Hussain, M. D., M. A. Khan, S. Ali and M. Arshad. 2016. Impact of acetamaprid, imidacloprid and diafenthiuron on Bemisia tabaci and tomato leaf curl virus disease incidence. Pakistan Journal of Phytopathology, 28: 141-145.

Isaacs, D. P., G. Martin, P. Harkins, A. J. A. Lemey, S. Gray, F. Meredith, A. Lakay, J. M. Monjane, A. Lett, Varsani and J. Heydarnejad. . 1999. The Spread of Tomato yellow leaf curl virus from the Middle East to the world. Plos Pathogens, 6: 1-12.

Kashina, B. D., R. B. Mabagala and A. A. Mpunami. 2007. Transmission properties of tomato yellow leaf curl virus from Tanzania. Journal of Plant Protection Research: 43-51-43-51.

Khalid, M. 2013. Present Status and Prospects of Tomatoes in Pakistan. Journal of Agricultural Sciences, 32: 51-58.

Khan, M. A., S. Rasheed and S. Ali. 2006. Evaluation of multiple regression models based on epidemiological factors to forecast Bemisia tabaci and mungbean yellow mosaic virus. Pakistan Journal of Phytopathology, 18: 107-110.

Khan, M. M. H. 2019. Effect of temperature and relative humidity on the population dynamics of brinjal and tomato infesting whitefly, Bemisia tabaci. Jahangirnagar University Journal of Biological Sciences, 8: 83-86.

Khattak, M. K., S. A. S. Mamoon-ur-Rashid and H. T. Islam. 2006. Comparative effect of neem (Azadirachta indica A. Juss) oil, neem seed water extract and Baythroid TM against whitefly, jassids and thrips on cotton. Detail, 1: T7.

Knapp, S. and I. E. Peralta. 2016. The tomato (Solanum lycopersicum L., Solanaceae) and its botanical relatives, The tomato genome. Springer, 7-21.

Kumar, S. P., S. K. Patel, R. G. Kapopara, Y. T. Jasrai and H. A. Pandya. 2012. Evolutionary and molecular aspects of Indian tomato leaf curl virus coat protein. International Journal of Plant Genomics, 2012: 417935-417935.

Ludwig, M., H. Ludwig, C. Conrad, T. Dahms and R. Meyhöfer. 2019. Cabbage whiteflies colonise Brassica vegetables primarily from distant, upwind source habitats. Entomologia Experimentalis et Applicata, 167: 713-721.

Nærstad, R., A. Hermansen and T. Bjor. 2007. Exploiting host resistance to reduce the use of fungicides to control potato late blight. Plant Pathology, 56: 156-166.

Palumbo, J. C., A. R. Horowitz and N. Prabhaker. 2001. Insecticidal control and resistance management for Bemisia tabaci. Crop Protection, 20: 739-765.

Pandey, P., N. R. Choudhury and S. K. Mukherjee. 2009. A geminiviral amplicon (VA) derived from Tomato leaf curl virus (ToLCV) can replicate in a wide variety of plant species and also acts as a VIGS vector. Virology Journal, 6: 152-152.

Ramos, R. S., L. Kumar, F. Shabani and M. C. Picanço. 2019. Risk of spread of tomato yellow leaf curl virus (TYLCV) in tomato crops under various climate change scenarios. Agricultural Systems, 173: 524-535.

Rashid, M., I. Hossain, M. Alam, M. Zaman and A. Hannan. 2008. Study on virus-vector relationship in TYLCV of tomato. International Journal of Sustainable Crop Production, 3: 1-6.

Sabokkhiz, M. A., A. Tanhaeian and M. Mamarabadi. 2019. Study on Antiviral Activity of Two Recombinant Antimicrobial Peptides Against Tobacco Mosaic Virus. Probiotics and Antimicrobial Proteins, 11: 1370-1378.

Zeshan, M. A., M. A. Khan, A. Safdar and M. Arshad. 2015. Correlation of conducive environmental conditions for the development of whitefly, Bemisia tabaci population in different tomato genotypes. Pakistan Journal of Zoology, 47: 1511-1515.



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Pakistan Journal of Phytopathology
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