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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.
Index Copernicus ICI Journals Master List 2018 - IJCMAS--ICV 2018: 95.39 For more details click here
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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 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(9): 1697-1701
DOI: https://doi.org/10.20546/ijcmas.2017.609.209


Efficacy of Certain Chemical Insecticides against Rice Gundhi Bug (Leptocorisa acuta Thunberg) Under Field Condition
Brajesh Bais*, Ashwani Kumar, Hadi Husain Khan, Ramkinkar Sahu and Pramod Kumar Kaiwart
Department of Entomology, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad, U.P., India
*Corresponding author
Abstract:

The pests appeared on 37th standard week (September 2nd week) on rice crop with an infestation of average 0.47 gundhi bug per hill. The gundhi bug population increased and gradually reached peak level of 3.035 gundhi bug per hill on 41st standard week (October 2nd week). At that time, average max temperature was 35.77 °C and minimum temperature was 28.82 °C, maximum relative humidity was 90 % and minimum 51.57 %, average wind velocity was 1.56 km/hr and average sunshine hour was 8.68 hours. One application of seven chemical insecticide viz., Imidacloprid 17.8 SL @ 100 ml/ha, Thiamethoxam 25 % WP @ 100g/ha, Chloropyrifos 50 % EC @ 2.5 lit/ha, Carbaryl 50 % WP 625 g/ha, Triazophos 40 % EC @ 875 ml/ha, Cartap hydroclorid 20 % SP @ 500 g/ha and Cypermethrin 25 % EC @ 250 ml/ha were evaluated against rice gundhi bug Leptocorisa acuta Thunberg. Maximum Per cent population reduction of gundhi bug per hills and B: C ratio were observed in Imidacloprid with (71.80 % and 1:3.36) respectively. Which are followed by Carbaryl (70.26 % and 1:3.22)> Thiamethoxam(67.63 and 1:3.27) >Chloropyrifos (66.71 and 1:3.35)> Triazophos (58.17and 1:3.00) >Cypermethrin (54.55 and 1:2.98) Cartap hydroclorid (52.21and 1:2.83) and > Untreated Control (1:2.29) respectively.


Keywords: Efficacy, Gundhi bug, Insecticides, Leptocorisa acuta, Rice, Seasonal incidence.
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How to cite this article:

Brajesh Bais, Ashwani Kumar, Hadi Husain Khan, Ramkinkar Sahu and Pramod Kumar Kaiwart. 2017. Efficacy of Certain Chemical Insecticides against Rice Gundhi Bug (Leptocorisa acuta Thunberg) Under Field ConditionInt.J.Curr.Microbiol.App.Sci. 6(9): 1697-1701. doi: https://doi.org/10.20546/ijcmas.2017.609.209