Bioefficacy of imidacloprid 17.8 SL against whitefly, Bemisia tabaci (Gennadius) in brinjal
DOI:
https://doi.org/10.48165/Keywords:
Brinjal, neonicotinoids, whiteflyAbstract
Field experiments were conducted in two crop seasons during 2010 and 2011 with brinjal (var Muktakeshi) to evaluate the efficacy of chloro-neonicotinoid as foliar application against whitefly, Bemisia tabaci (Gennadius). Imidacloprid 17.8 SL @ 50 g a.i./ha, was found superior against whiteflies among other treatments, received low est number of whitefly population (1.55/plant) and offered maximum reduction of whiteflies (83.15%) as well as highest marketable fruit yield (146.50 q/ha). However, imidacloprid at lower doses showed nearly similar results. The other neonicotinoid, thiamethoxam also provided similar levels of protection as that of imidacloprid. The con ventional insecticide, methyl demeton (125 g a.i./ha) was less effective.
References
Benthke JA Redak RA. 2008 Effect of imidacloprid on
the silverleaf whitefly, Bemisia argentifolii Bel-
lows and Perring (Homoptera: Aleyrodidae), and
whitefly parasitism. Annals of Applied Biology
130: 397- 07.
Castle SJ Palumbo JC. 2006 Relationship of Bemisia
tabaci adult mortalities and population growth to
imidacloprid concentrations in cantaloupes. In.
Proceedings of Bemisia International Workshop,
December 3-8, 2006, Key West, FL, pp.84-81.
Misra HP Senapati B. 2003 Evaluation of new lnsecti-
cides against okra jassid (Amrasca biguttula
biguttula). Indian Journal of Agricultural Sci-
ences 73: 576-78.
Nath V Sinha SR. 2011 IPM in Okra through neoni-
cotinoids, insecticides and their mixtures. Annals
of Plant Protection Sciences 19: 33-36.
Razaq M Aslam M Sharf K Salman B and Aleem MF.
2003 Evaluation of insecticides against cotton
whitefly, Bemisia tabaci (Genn.) (Homoptera:
Aleyrodidae). Journal of Research 14: 199-02.
Regupathy A Palanisamy S Chandramohan N
Gunathilagaraj K. 1997 A Guide on Crop
Pests, Sooriya Desk Top Publishers, Coimba-
tore, India, pp 264.
Sharma V Lal R Choudhury A. 2001 Screening of
brinjal (Solanum spp.) germplasm against
shoot and fruit borer, Leucinodes orbonalis
Guen. under Bhubaneshwar climatic condi-
tion. Journal of Applied Zoological Research
16: 123-25.
