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Manuscript Details
Vol. 7 Issue 1 June 2016
Case report
Prediction of mango thrips using thermal indices
Gundappa*, Tarun Adak and P K Shukla
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Case Report


GERF Bulletin of Biosciences

June 2016, 7(1):17-20

Published Online: 30 June 2016



Prediction of mango thrips using thermal indices


Gundappa*, Tarun Adak and P K Shukla


1, 3 Division of crop protection, Central Institute for Subtropical Horticulture, Rehmankhera, Lucknow-226101, Uttar Pradesh, India

2 Division of crop production Central Institute for Subtropical Horticulture, Rehmankhera, Lucknow-226101, Uttar Pradesh, India


*Corresponding author:




Wide variations in thrips populations were observed across different critical crop phenological stages and seasons. The thrips population was observed between 13th SMW to 24th SMW during 2013 cropping season, whereas it was found from 15th SMW to 28th SMW in the subsequent year. Step wise regression analysis revealed that maximum temperature, minimum temperature, maximum relative humidity, minimum relative humidity, sunshine hours and evaporation could explained 55 per cent variations in thrips population. Different thermal indices viz., growing degree days (GDD), heliothermal units (HTU), photothermal units (PTU), were cumulated up to peak population density and a positive and significant correlation was revealed. Thus, it was concluded that use of all these robust indices may be useful in assessing the pest-weather dynamics of mango growing region and serve as a basis for real time pest management advisory.


Key Words: High density system, precision farming, soil properties, stock estimation, mango


 © Gundappa et al., 2016; licensee Green Earth Research Foundation. This article distributed under terms of Creative Commons Attribution License ( Which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


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