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Field efficacy of Helicoverpa armigera nucleopolyhedro-viru..:

Subramanian Jeyarani ; Natarajan Sathiah ; Palaniappan Karuppuchamy
https://pps.agriculturejournals.cz/artkey/pps-201003-0004_field-efficacy-of-helicoverpa-armigera-nucleopolyhedro-virus-isolates-against-h-armigera-h-bner-lepidoptera.php.  , 2010