000			01926nam a2200133 4500
008			250624b |||||||| |||| 00| 0 eng d
100			_aS. Krisna Kumar
245			_aDeciphering the chemical cues underlying the oviposition behaviour of spotted bollworm, Earias vittella Fabricius in Okra
300			_aP 185-194
520			_aInsect pests that attack plants generally exhibit a strong preference for specific phenological stages of their host plants for feeding and oviposition. In this study, we examined the influence of different phenological stages volatiles of okra (Ablemoschus esculentus), namely pre-flowering, flowering and fruiting, on the behaviour of the notorious pest, spotted bollworm (Earias vittella Fabricius). To understand the olfactory response of E. vittella, we utilized a Y-tube olfactometer, gas chromatography electroantennographic detection (GC-EAD) and gas chromatography-mass spectroscopy (GC-MS) techniques. Among the three host plant phenological stages, the volatile cues from the fruiting stage were significantly attractive to E. vittella. The specific chemical cues responsible for this attraction were identified using GC-EAD/GC-MS. The electrophysiological studies revealed a total of 14 chemical cues that elicited a clear antennal response in the gravid female moths of E. vittella. Further, detailed olfactometer bioassays with synthetic compounds revealed that four compounds elicited a significant attraction in gravid female moths and one elicited significant repulsion response. The study provides valuable insights into the host plant preference of E. vittella and identifies the underlying potent attractive chemicals for its future management strategies.
654			_aAblemoschus esculentus _afruit and shoot borer _aGC-EAD/GC-MS _aolfactometer assays _aphenological stages _avolatiles
773	0		_0125299 _9112519 _tCurrent Science _x 0011-3891
942			_cJA
999			_c131847 _d131847