TY - CHAP N2 - This chapter reviews the efficacy of biological pesticides (Helicoverpa armigera nuclear polyhedrosis viruses or HaNPVs, fungi, bacteria, protozoa and nematodes) and plant extracts (including Azadirachta indica extracts) against H. armigera; mass production of HaNPVs; and genetic modification of HaNPVs for increased efficacy ED - Sharma, H C AV - restricted A1 - Grzywacz, D A1 - Richards, A A1 - Rabindra, R J A1 - Saxena, H A1 - Rupela, O P TI - Efficacy of biopesticides and natural plant products for Heliothis/Helicoverpa control UR - http://oar.icrisat.org/6758/ T2 - Heliothis/Helicoverpa management: emerging trends and strategies for future research SP - 371 Y1 - 2005/// ID - icrisat6758 EP - 389 SN - 81-204-1650-3 PB - Oxford & IBH Publishing Co. Pvt. Ltd. CY - New Delhi ER -