Ms Sanjana Akter1, Mr Md Sahadat Hossain1, Mr Lok Nath Aryal1, Mr Syed Z Rizvi1, Mr Bishwo Mainali1, Ms Soo J Park1

1Macquarie University, Macquarie university, Australia

Biography:

Sanjana Akter is a dedicated PhD student in Applied Biosciences, deeply passionate about exploring the intricate world of entomology. With a keen interest in the host-natural enemy interactions, her research focuses on understanding the chemical ecology and the behavior of insects and their natural enemies, particularly those involving insects and pests of agricultural importance.

Driven by a curiosity to unravel the complexities of insect behaviour, her academic journey has been marked by a commitment to rigorous experimentation and interdisciplinary collaboration. Through her work, she aims to contribute to the development of sustainable pest management strategies and the preservation of biodiversity.

With a solid foundation in chemical ecology and insect behaviour, she is eager to engage with fellow researchers and experts in the field at entomological conferences. By sharing insights, exchanging ideas, and forging connections, she aspires to deepen her understanding and make meaningful contributions to the advancement of entomological science

Abstract:

Herbivore-infested plants emit distinct blends of herbivore-induced plant volatiles (HIPVs), which play crucial roles in tri-trophic interactions by attracting parasitoids and predators and influencing herbivore behaviour. Parasitoids demonstrate a remarkable ability to recognize HIPVs associated with their specific hosts. Diglyphus isaea and Hemiptarsenus varicornis are two important hymenopteran parasitoids of the serpentine leafminer (SLM) Liriomyza huidobrensis, a highly polyphagous pest that has recently established in Australia. SLM poses a significant threat to the horticulture industry. As it is known to develop resistance to various conventional insecticides overseas prompting the urgent need for sustainable management strategies that utilize biological approaches. This study aims to investigate HIPVs from six different horticulturally important host plants that may play a major role in tri-trophic system involving SLM, its host plants, and the parasitoids D. isaea and H. varicornis. The chemical profiles of SLM infested mechanically damaged, and intact plants are being analysed using gas chromatography-mass spectrometry (GC-MS). Furthermore, the compounds from HIPVs will be evaluated by gas chromatography electroantennogram detection (GC-EAD) to identify the potentially important compounds for attracting the parasitoids. Behavioural bioassays will be conducted to identify individual compounds that attract the aforementioned parasitoids. The attractant(s) will be employed in the protected cropping setting to enhance biological control strategies in managing SLM as sustainable alternatives to chemical pesticides.