TY - JOUR JF - JCPP JO - VL - 12 IS - 45 PY - 2008 Y1 - 2008/10/01 TI - Effects of Different Cultivars of Sugarcane on Parasitism and Functional Response of Platytelenomus hylas (Hym., Scelionidae) to Different Egg Densities of Stem Borer, Sesamia nonagrioides (Lef., Noctuidae) TT - تأثیرنوع رقم نیشکر بر واکنش تابعی زنبور پارازیتوئید ( Platytelenomus hylas (Hym., Scelionidae نسبت به تراکم‌های مختلف تخم ساقه‌خوار ( Sesamia nonagrioides ( Lep., Noctuidae و میزان پارازیتیسم N2 - Cultivars or species of different plants through physical and biochemical characteristics or indirectly through food diet of host plant can influence behavioral characteristics and efficiency of a natural enemy. This investigation was conducted to determine percentage of parasitism and functional response of parasitoid wasp, Platytelenomus hylas (Hym., Scelionidae) to different egg densities of stem borer, Sesamia nonagrioides (Lef.) and effect of different cultivars on it. At the first stage, eggs of pest were separately collected from fields in three cultivars of CP48-103, CP69-1062 and CP57-614 and then percentage of parasitism in each cultivar was calculated. For determining functional response of the wasp, collected eggs from fields were reared to adult stage at 29±1 ºC, 60% of RH,. Then functional response of wasp was investigated at densities of 2, 4, 6, 8, 14, 20, 30, 40, 50, 60, 70, 80, and 90 of the host eggs for 24h. Analysis of data was done using SAS software. Results showed that egg parasitism by P. hylas in cultivars were significantly different (p SP - 275 EP - 284 AU - Askarianzadeh, A. R. AU - Moharramipour, S. AU - Fathipour, Y. AU - Narrei, A. AD - KW - Sugarcane cultivar KW - Parasitism KW - Functional response KW - Platytelenomus hylas KW - Sesamia nonagrioides. UR - http://jcpp.iut.ac.ir/article-1-919-en.html ER -