SIMWAT GS, DHAWAN AK. Field evaluation of different economic threshold levels for chemical control of pink bollworm (Pectinophora gossypiella), spotted bollworm (Earias vittella, E. insulana) and cotton bollworm (Helicoverpa armigera) on cotton (Gossypium species). Indian J Agri Sci [Internet]. 2013 May 17 [cited 2026 Jun. 14];67(6). Available from: https://epubs.icar.org.in/index.php/IJAgS/article/view/29912