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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(11): 2206-2211
DOI: https://doi.org/10.20546/ijcmas.2017.611.261


Dynamics of Mango Hopper Population under Ultra High Density Planting
A.U. Chaudhari1*, S. Sridharan1, K. Soorianathasundaram2 and S.D. Sundar Singh3
1Department of Agricultural Entomology, Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore - 641 003, Tamil Nadu, India
2Department of Fruit Crops, HC &RI, Tamil Nadu Agricultural University,Coimbatore - 641 003, Tamil Nadu, India
3R & D farm, Jain Irrigation Systems Limited, Udumalpet-642154, Tamil Nadu, India
*Corresponding author
Abstract:

Field observation at weekly intervals on the occurrence of mango hopper population under Ultra high density planting system of mango was carried out at R & D farm, Jain Irrigation Systems Limited, Udumalpet, Tamil Nadu during 2014. The incidence of hopper population was noted from 4th week of January which reaches its peak (80 hoppers/20 panicles) during fourth week of February corresponding with 8th standard week. The hopper population declined from second week of March which disappeared during second week of May. Reoccurrence of hopper population was observed in first week of September with peak population of 4.8 hoppers /20 panicles in vegetative phase after pruning. Thus two distinct peaks were observed during crop period, one in reproductive and another in vegetative phase. Maximum temperature, morning RH, evaporation and sunshine hours influenced the hopper infestation positively but not significant whereas minimum temperature, afternoon RH, rainfall and wind speed showed non-significant negative correlation. The regression analysis also indicated the influence of crop phenology with hopper incidence as compared to abiotic factors prevailed during 2014 at R &D farm, JISL, Udumalpet, TN.


Keywords: Population, Dynamics, Mango hopper, Ultra high density.
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How to cite this article:

Chaudhari, A.U., S. Sridharan, K. Soorianathasundaram and Sundar Singh, S.D. 2017. Dynamics of Mango Hopper Population under Ultra High Density Planting.Int.J.Curr.Microbiol.App.Sci. 6(11): 2206-2211. doi: https://doi.org/10.20546/ijcmas.2017.611.261