Sex pheromone blends for rice caseworm Paraponyx stagnalis Zeller Karthikeyan K.*, Prasad A.R.1, Jyothi K.N.1, Prasuna L.1, Narayanakutty M.C. Regional Agricultural Research Station Kerala Agricultural University, Pattambi, 679306, Kerala 1Indian Institute of Chemical Technology, Hyderabad, 500007, Telangana *Email: profkarthi@yahoo.co.in
Online published on 27 July, 2018. Abstract Studies on sex pheromone of rice caseworm, Paraponyx stagnalis (Zeller) using EAG and GC-MS indicated the presence of four pheromone compounds viz., Z-13-octadecenyl acetate, Z-9-hexadecenal, Z-11-hexadecenal and Z-11-hexadecenyl acetate in the ovipositor extract. Five different blends prepared from the tentatively identified compounds were evaluated for their field efficacy in rice fields at Pattambi, Kerala. Pheromone blends with Z-13-Octadecenyl acetate alone and with Z-11-Hexadecenal as a two component blend in the ratio of 1: 1 were found promising in attracting more number male moths of rice caseworm in the field study. Top Keywords Paraponyx stagnalis, sex pheromones, Z-13-octadecenyl acetate, Z-11-hexadecenal, Z-11hexadecenyl acetate, Z-9-hexadecenal, moth catches. Top |