Year-end Sale % OFF 
Abstract
A roving survey was conducted in the rice crop grown in coastal districts of Andhra Pradesh during rabi, 2021-22 and 2022-23. Overall mean stem borer incidence varied from 13.59% - 14.83% in both the seasons. Larvae of Scirpophaga incertulas (Walker), Sesamia inferens (Walker), Chilo polychrysus (Meyers) and Chilo auricilius (Dudgeon), were recorded from four districts during the survey. Among the stem borers, S. incertulas was the most predominant species (53.37%) followed by S. inferens (44.7%). Natural larval parasitization (21%) of S. inferens by Cotesia flavipes Cameron was observed in West Godavari district. The biology of S. inferens was studied on rice cv. MTU 1121. The average larval period recorded was 32.40± 0.35 days. Total life cycle of S. inferens ranged between 41-65 and 46-73 days for male and female moths, respectively. Current study suggests that S. inferens could be a potential threat to rice cultivation in coastal Andhra Pradesh.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
