1Department of Zoology, Thanthai Periyar Government Arts and Science College (Autonomous), (Affiliated to Bharathidasan University), Tiruchirappalli - 620 023, Tamil Nadu, India
National Institute of Plant Health Management (An Organization of Ministry of Agriculture and Farmers Welfare, Government of India), Rajendra Nagar, Hyderabad - 500 030, Telangana, India
*Corresponding authors’ E-mail: adrpmniphm-ap@nic.in
Online published on 15 June, 2023.
Investigations were conducted to find out the feeding preference and development of Tribolium castaneum in rice varieties that had undergone 12 months storage. The 12 months old PDS rice varieties namely BR Gr A, RR Gr A and BR Common were compared with two locally used ASD 16 and RNR 15048 varieties. Results showed that T. castaneum adults preference was high towards RR Grade A (26.67 adults) followed by RNR 15048 (22.00 adults) among different long stored rice varieties. During observations on grub and adult development 37.67 grubs emerged in RR Gr A (37.67) followed by RNR 15048 (32.67) at 75 days after release (DAR). Significantly high number of mean adults were recorded in RNR 15048 (43.00) followed by RR Grade A 35.67) at 75 DAR and less number of grubs and adults were found in boiled rice varieties. Thus boiled rice grains are found suitable for longer storage as compared to raw rice grains.
Development, Feeding preference, Longer storage, PDS, Rice varieties, Tribolium castaneum
