The treatment of hydrophobic silica nanoparticles (SNPs) with the pulse seeds of Cajanus cajan, Macrotyloma uniflorum, Vigna mungo, Vigna radiata, Cicer arietinum and Vigna unguiculata against the infestation of stored pulse beetle, Callosobruchus maculatus revealed a significant reduction in oviposition, adult emergence and seed damage potential. There was a complete retardation of growth of this beetle in the treated seeds of C. cajan. SNPtreated seeds of these six varieties of pulses revealed no effect on the growth of seeds as revealed by seed germination, growth rate of root and shoot. Similarly, the soil microflora measured in terms of colony forming units was not affected by silica nanoparticles upon its treatment with pulse seeds. The results of this study thus clearly demonstrated the useful nature of silica nanoparticles as seed protecting agent for the control of C. maculatus.

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purpureus using artificial diet confirmed the complete retardation of development of the stored product pest Callosobruchus maculatus at 0.2% w/w arcelin-incorporated artificial seeds.

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