International Journal of Chemical Studies
Vol. 5, Issue 5 (2017)
Olfactory orientation of Cotesia flavipes Cameron on info chemicals emitted from larvae & excreta of Chilo auricilius Dudgeon and Chilo partellus Swinhoe
Author(s): Yeetesh Kumar, MR Singh, YK Yadu, Anupriya Chandraker and Pankaj Bhargav
Abstract: Stalk borer of sugarcane, Chilo auricilius Dudgeon and Chilo partellus Swinhoe is an important pest of sugarcane, sorghum, maize and other graminaceous plants. They are damage the plants by boring and making tunnel inside the stem and filled by frass. Due to the borers attack the plant lost their productivity. In sugarcane crop the millable quality is severely destroyed by the C. auricilius and other borers. Cotesia flavipes Cameron is a gregarious larval parasitoid of stalk borer of sugarcane, Chilo auricilius Dudgeon, Chilo partellus Swinhoe and other borers. In present studies, kairomonal effects of n- hexane based excreta and larval body wash extract of C. auricilius and C. partellus on Cotesia flavipes (Cameron) orientation behaviour in Y-tube olfactometer bioassay (Choice & no choice) have studied under laboratory condition to understand the role of larvae and their excreta on parasitization behaviour of C. flavipes. In bioassay the larval body wash of C. auricilius attracted significantly higher number of C. flavipes (40) than C. partellus (32). In case of excreta extract, the excreta extract of C. partellus attracted significantly higher number of C. flavipes (36) than C. auricilius (31). It is indicates the short range odors emanating from the larvae and excreta may play role in attracting and guiding the C. flavipes to location of host in plant. The higher number of wasp attraction towards the larval body wash represents the larval odour is an important component for increasing the parasitization efficiency of parasitoids.
Pages: 1708-1712 | 394 Views 11 Downloads
How to cite this article:
Yeetesh Kumar, MR Singh, YK Yadu, Anupriya Chandraker, Pankaj Bhargav. Olfactory orientation of Cotesia flavipes Cameron on info chemicals emitted from larvae & excreta of Chilo auricilius Dudgeon and Chilo partellus Swinhoe. Int J Chem Stud 2017;5(5):1708-1712.