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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 (2020)
[Effective from January 1, 2020]
For more details click here

ICV 2019: 96.39
Index Copernicus ICI Journals Master List 2019 - IJCMAS--ICV 2019: 96.39
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 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2021.10(7): 222-228
DOI: https://doi.org/10.20546/ijcmas.2021.1007.024


Seasonal Incidence of Major Insect Pests of Potato (Solanum tuberosum L.) and their Correlation with Abiotic Factors under Foothill Conditions of Nagaland
Imlilemla Amlari1, Pankaj Neog1* and Noyingthung Kikon2
1Department of Entomology, 2 Department of Agronomy, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema – 797106, Nagaland, India
*Corresponding author
Abstract:

A field experiment was conducted at Experimental Farm, School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema Campus during Rabi season of 2016-17 to study the effect of weather parameters on incidence of major insect pests infesting potato crop. Leafhopper appeared during 46th SMW (Standard mean week), while first incidence of potato aphid, whitefly and mealybug was seen on 47th SMW. The peak populations of potato aphid were observed in 4th SMW with a mean population of 23.93 per three leaves. Whitefly (1.67 per three leaves), leafhopper (1.87 per three leaves) and mealybug (3.20 per three leaves) were observed in 1st, 3rd, 1st SMW, respectively. Whitefly, leafhopper and mealybug demonstrated non-significant negative association with minimum temperature (r= -0.457, -0.467 and -0.506, respectively) but significant negative correlation (r= -0.744) in potato aphid. Negative significant correlation was recorded (r= -0.658, -0.692, -0.862 and -0.821) of maximum temperature with potato aphid, whitefly, leafhopper and mealybug, respectively. Minimum relative humidity was non-significant negatively correlated (r= -0.398, -0.037,-0.018 and -0.069) with potato aphid, whitefly, leafhopper and mealybug, respectively. Potato aphid and mealybug infestation had negative non-significant correlation (r= -0.345 and -0.024, respectively) with maximum relative humidity, but non-significant positive correlation (r=0.157 and 0.105) in leafhopper and whitefly, respectively. Rainfall showed positive non-significant correlation (r=0.330, 0.232 and 0.390) with whitefly, leafhopper and mealybug, respectively. Aphid population was non-significant negatively correlated (r= -0.163) with rainfall.


Keywords: Seasonal incidence, potato, potato aphid, whitefly, leafhopper and mealybug
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How to cite this article:

Imlilemla Amlari, Pankaj Neog and Noyingthung Kikon. 2021. Seasonal Incidence of Major Insect Pests of Potato (Solanum tuberosum L.) and their Correlation with Abiotic Factors under Foothill Conditions of Nagaland. Int.J.Curr.Microbiol.App.Sci. 10(7): 222-228. doi: https://doi.org/10.20546/ijcmas.2021.1007.024