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 2019 - IJCMAS--ICV 2019: 96.39 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2020) [Effective from January 1, 2020]For more details click here

Login as a Reviewer

Indexed in



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

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 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2020.9(12): 2022-2027
DOI: https://doi.org/10.20546/ijcmas.2020.912.239


Monitoring of Acaricide Resistance in Two Spotted Spider Mite, Tetranychus urticae Koch in Carnation
Sumathi1*, R. Vishnupriya1, A. Sankari2, N. Sathiah1 and K. Prabakar3
1Department of Agricultural Entomology, Tamil Nadu Agricultural University, Coimbatore
2Department of Vegetable Crops, HC & RI, Tamil Nadu Agricultural University, Coimbatore
3Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore, India
*Corresponding author
Abstract:

The two spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) is the most destructive phytophagous species.  T. urticae is particularly dominant and destructive in intensive cultivation, high-yield cropping systems, and affect crops by direct feeding. In severe infestations, it reduces the area of photosynthetic activity and causes leaf abscission. Populations can increase rapidly especially during hot and dry periods. T. urticae may develop 15–20 generations per crop of open cultivation and up to 30 generations, in protected cultivation where high value flower crops like carnation is grown. Farmers rely only on acaricides and insecticides on the management of T. urticae in carnation. Acaricide resistance in phytophagous mites is seriously increasing phenomenon, especially in T. urticae. Hence, a survey was carried out in Kothagiri areas to study the acaricide usage pattern in carnation during 2018-19. The results of bioassay revealed that that LC50 values for fenazaquin was 418.3 and 599.37 and for propargite it was 373.33 and 319.64, respectively in Kurkuthi and Kapati population. Resistance ratio of 217.86 and 312.17 for fenazaquin and 272.50 and 233.31 for propargite was recorded in Kurkuthi and Kapati population, respectively.


Keywords: Acaricide resistance, Tetranychus urticae, Resistance ratio, Carnation
Download this article as Download

How to cite this article:

Sumathi, E., R. Vishnupriya, A. Sankari, N. Sathiah and Prabakar, K. 2020. Monitoring of Acaricide Resistance in Two Spotted Spider Mite, Tetranychus urticae Koch in CarnationInt.J.Curr.Microbiol.App.Sci. 9(12): 2022-2027. doi: https://doi.org/10.20546/ijcmas.2020.912.239