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VOL. 7, ISSUE 4 (2025)
Studies on effect of new insecticide molecules on seed quality of hybrid maize (Zea mays l.) during storage
Authors
Shruthi K, SB Bellad, BS Ganigara, Umesh Hiremath, Sushila Nadagouda
Abstract
A storage experiment was conducted to evaluate the effect of new
insecticide molecules on the seed quality of hybrid maize (MAH 14-138) at the
Seed Unit, University of Agricultural Sciences, Raichur, under ambient
conditions from November 2024 to July 2025. The experiment was laid out in a
Completely Randomized Design (CRD) with 11 treatments in four replications. The
treatments viz., Spinetoram 11.7 SC (1, 2, 3 ppm), Flupyradifurone 200
SL (2, 4, 8 ppm), Emamectin benzoate 5 SG (2 ppm), Deltamethrin 2.8 EC (1 ppm),
Spinosad 45 SC (2 ppm) and Imidacloprid 600 FS (5 ml/kg of seed). Monthly
observations on seed quality parameters up to nine months of storage revealed
that seeds treated with Spinosad 45 SC @ 2 ppm consistently maintained superior
seed quality, whereas untreated seeds recorded the lowest performance. At the
ninth month, Spinosad-treated seeds exhibited the highest germination (91.00
%), seedling dry weight (63.10 mg) and seedling vigour index-I (2522) and also
showed the lowest seed infestation (0.00 %) and electrical conductivity (0.58
dS/m). Overall, the study demonstrated that Spinosad 45 SC @ 2 ppm is highly
effective in safeguarding hybrid maize seed quality and provides complete
protection against Sitophilus spp. infestation for up to nine months of
storage.
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Pages:159-163
How to cite this article:
Shruthi K, SB Bellad, BS Ganigara, Umesh Hiremath, Sushila Nadagouda "Studies on effect of new insecticide molecules on seed quality of hybrid maize (<i>Zea mays</i> l.) during storage". International Journal of Ecology and Environmental Sciences, Vol 7, Issue 4, 2025, Pages 159-163
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