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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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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 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

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.2020.9(2): 1299-1307
DOI: https://doi.org/10.20546/ijcmas.2020.902.153


Population Dynamics of Major Insect-pest and Natural Enemies on Maize Crop
Akshay Kumar*, R.S. Singh, Kripa Shankar, Vikrant and Devendra Singh
Department of Entomology, C. S. Azad Uni. of Agric. and Tech., Kanpur (U.P.) India
*Corresponding author
Abstract:

An field experiment was conducted in two consecutive year (Spring 2015 and 2016) at NawabGanj Farm of C. S. Azad University of Agriculture and Technology, Kanpur 208002 (U.P.). The Shoot fly (egg/plants) on maize appeared in both year (Spring 2015 and 2016) from 7th to 13th standard week and the highest egg laying was found in 11th S.W. (2.83egg/plant) in above years. Stem borer, Chilo partellus (Swinhoe) dead heart was observed from 8th to 16th standard week after this period there was no newly dead heart was found till the crop harvested. Three species of coccinellids viz., Coccinella septempunctata (Linnaeus), Cheilomenes sexmaculata (Fab.), Coccinella tranversalis (Fab.) and Brumoides suturalis (Fab.) were found commonly associated with sucking pests of maize crop. The population was recorded from 7th to 19th S.W. Spiders are the predominant generalised predators found feeding on variety of sucking as well as lepidopteron pests in maize ecosystem. It was observed that the spiders were abundant between 8th to 20th S.W., its peak population observed during 15th and 16th standard week that coincided to follow with high prey population i.e. stem borer and aphids.


Keywords: Predators, Prey, Coccinellids, Aphids
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How to cite this article:

Akshay Kumar, R.S. Singh, Kripa Shankar, Vikrant and Devendra Singh. 2020. Population Dynamics of Major Insect-pest and Natural Enemies on Maize Crop. Int.J.Curr.Microbiol.App.Sci. 9(2): 1299-1307. doi: https://doi.org/10.20546/ijcmas.2020.902.153