Follow
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 2017 - IJCMAS--ICV 2017: 100.00 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2019) [Effective from January 1, 2019]For more details click here

Login as a Reviewer

Indexed in



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

See Guidelines to Authors
Current Issues

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.2019.8(2): 2293-2300
DOI: https://doi.org/10.20546/ijcmas.2019.802.267


Alternation of Insecticidal Sprays for the Management of Thrips (Thrips tabaci Lindeman) and Whitefly (Bemisia tabaci Gennadius) Pest of Bt Cotton in Malwa Region of Madhya Pradesh
Bhavna Verma*, Nikki Bhardwaj, S.B. Singh and Manorama Sharma
RVSKVV, College of Agriculture, Indore, India
*Corresponding author
Abstract:

The experiment was carried out during kharif 2014 at College of Agriculture, Indore under All India Coordinated Cotton Improvement Project in Randomized Block Design (RBD) with eight treatments and three replications on Bt cotton hybrid NCS 927, sown on 27th July with 0.6x0.6 m spacing. The recommended agronomical practices were adopted properly. Each treatment was prepared for alternate use of two insecticides during six sprays. The spraying was done at 10 days interval with 500 litre water per hectare, sprayed by knapsack sprayer fitted with a duromist nozzle. These treatments were marked as T1- Imidacloprid (70%WG) @ 24.5 gai/ha & Oxydmeton methyl (25%EC) @ 250 gai/ha, T2- Thiaclorprid (21.7%SC) @ 30 gai/ha & Dimethoate (30%EC) @ 250 gai/ha, T3- Imidacloprid (17.8%SL) @ 25 gai/ha & Acephate (75%SP) @ 250 gai/ha, T4- Imidacloprid (30.5%SC) @ 26.25 gai/ha & Thiamethoxam (25%WG) @ 37.5 gai/ha, T5- Spiromesifen (22.9%SC) @ 144 gai/ha & Deltamethrin (2.8%EC) @ 15 gai/ha, T6-Fipronil (5%SC) @ 100 gai/ha & Lambdacyhalothrin (4.9%EC) @ 15 gai/ha, T7- Acetamiprid (20%SP) @ 30 gai/ha & Difenthiuran (50%WP) @ 300 gai/ha and T8- Untreated check. Except third spray, in all the sprays T5 reduced maximum thrips population and found at par with T6. The highest population reduction was also noted in T5 (77.78%) followed by T6- (76.94%). The population of whitefly was lowest after each spray in T2- and showed no significant difference with T3 except in 6th spray. The similar trend was observed in population reduction also in T2 (76.69%) and T3 (72.20%).


Keywords: Alternation; Efficacy; Insecticides; Bt cotton; Thrips; Whitefly
Download this article as Download

How to cite this article:

Bhavna Verma, Nikki Bhardwaj, S.B. Singh and Manorama Sharma. 2019. Alternation of Insecticidal Sprays for the Management of Thrips (Thrips tabaci Lindeman) and Whitefly (Bemisia tabaci Gennadius) Pest of Bt Cotton in Malwa Region of Madhya Pradesh.Int.J.Curr.Microbiol.App.Sci. 8(2): 2293-2300. doi: https://doi.org/10.20546/ijcmas.2019.802.267