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Entomology is key to understanding terrestrial and freshwater ecosystems at a time of unprecedented anthropogenic environmental change and offers substantial untapped potential to benefit humanity in a variety of ways, from improving agricultural practices to managing vector‐borne diseases and inspiring technological advances.We identified high priority challenges for entomology using an inclusive, open, and democratic four‐stage prioritisation approach, conducted among the membership and affiliates (hereafter 'members') of the UK‐based Royal Entomological Society (RES).A list of 710 challenges was gathered from 189 RES members. Thematic analysis was used to group suggestions, followed by an online vote to determine initial priorities, which were subsequently ranked during an online workshop involving 37 participants.The outcome was a set of 61 priority challenges within four groupings of related themes: (i) 'Fundamental Research' (themes: Taxonomy, 'Blue Skies' [defined as research ideas without immediate practical application], Methods and Techniques); (ii) 'Anthropogenic Impacts and Conservation' (themes: Anthropogenic Impacts, Conservation Options); (iii) 'Uses, Ecosystem Services and Disservices' (themes: Ecosystem Benefits, Technology and Resources [use of insects as a resource, or as inspiration], Pests); (iv) 'Collaboration, Engagement and Training' (themes: Knowledge Access, Training and Collaboration, Societal Engagement).Priority challenges encompass research questions, funding objectives, new technologies, and priorities for outreach and engagement. Examples include training taxonomists, establishing a global network of insect monitoring sites, understanding the extent of insect declines, exploring roles of cultivated insects in food supply chains, and connecting professional with amateur entomologists. Responses to different challenges could be led by amateur and professional entomologists, at all career stages.Overall, the challenges provide a diverse array of options to inspire and initiate entomological activities and reveal the potential of entomology to contribute to addressing global challenges related to human health and well‐being, and environmental change. [ABSTRACT FROM AUTHOR]

Biological control efforts against the shore fly Scatella tenuicosta Collin, a pest of commercial glasshouses, have had limited success. The ability of one of its parasitoids, Aphaereta debilitata Morley, to control shore fly populations was investigated on lettuce crops within six experimental glasshouse units, over 26 weeks. The six shore fly populations, either with or without a single release of 150 mixed-sexed parasitoids, were estimated by rearing from harvested pots each week. The presence of the parasitoid significantly reduced shore fly numbers from a mean of 30.3-13.2 adult flies emerging per pot. The level of damage to each lettuce was assessed using a scoring system (0-5: no damage to heavy damage, respectively). The introduction of parasitoids reduced the median damage score of the lettuces from 2 to 1 over the study, representing a considerable change in the marketability of the crop. This study shows that single inoculative releases of A. debilitata can quickly establish within a glasshouse and significantly reduce crop damage. This suggests that the parasitoid may represent a valuable addition to an IPM strategy for shore flies. [ABSTRACT FROM AUTHOR]