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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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Online ISSN : 2319-7706
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Index Copernicus ICV 2017: 100.00
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Int.J.Curr.Microbiol.App.Sci.2018.7(12): 125-134
DOI: https://doi.org/10.20546/ijcmas.2018.712.016


Intensity of Insect Pests in Gossypium hirsutum Cultivars under High Density Planting System (HDPS) in India
V. Chinna Babu Naik*, P.L. Dabhade, S. Kranthi, M.V. Venugopalan and K.B. Subbireddy
Central Institute for Cotton Research, P.B. No. 2, Shankar Nagar P.O., Nagpur-440010 (Maharashtra), India
*Corresponding author
Abstract:

A field experiment was conducted to study the mean incidence of major cotton insect pests during two consecutive seasons i.e. during kharif, 2010-11 and 2011-12 at CICR, Nagpur under high density planting system (HDPS) using different genotypes of G. hirsutum with different spacings. The main objectives of the work was to identify lines of G. hirsutum which have less infestation of major insect pests under HDPS system and to investigate whether the incidence is influenced by plant density. In 2010-11 the minimum mean population of leafhopper was on NISC-50 (1.82 nymphs/3 leaves/plant) with spacing of 45x13.5 cm followed by PKV-0811 (1.91 nymphs/3 leaves/plant) with spacing of 45x13.5 cm and these genotypes are significantly superior over the others. The injury grade was I on both NISC-50 and PKV-081. The mean per cent square damage was low in CNH-120 MB (2.76 %) followed by PKV-081 (3.82%) both were statistically on par with each other and significantly superior over other genotypes. The mean pink bollworm population was low on PKV-081 (2.53 larvae/25 green bolls). The lowest per cent locule damage due to pink boll worm was noticed on PKV-081 (8.48 %). However the performance of genotypes and geometry against the all insect pests in 2011-12 was not significantly different. Pest incidence was not altered by closer spacing.


Keywords: Ultra Narrow Row, High density planting system, insect pests and G. hirsutum
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How to cite this article:

Chinna Babu Naik, V., P.L. Dabhade, S. Kranthi, M.V. Venugopalan and Subbireddy, K.B. 2018. Intensity of Insect Pests in Gossypium hirsutum Cultivars under High Density Planting System (HDPS) in India.Int.J.Curr.Microbiol.App.Sci. 7(12): 125-134. doi: https://doi.org/10.20546/ijcmas.2018.712.016