2026-10-11T23:26:43Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33969259 2026-09-22T23:51:29Z category_24127 item_type_3 month_year_09_2026

[DATASET] Testing <i>Regiella insecticola </i>effects on chemical and entomopathogen tolerance across two aphid species Ashritha Prithiv Sivaji Dorai (17946644) Other agricultural, veterinary and food sciences not elsewhere classified Aphididae Regiella insecticola insecticide entomopathogen BEAUVERIA-BASSIANA Myzus persicae (Sulzer) Rhopalosiphum padi L <p dir="ltr"><i>Candidatus</i> <i>Regiella</i> <i>insecticola</i> is a facultative endosymbiont in aphids, known for its effects on parasitoid protection, virus transmission and entomopathogen effects in several species, and the infection may have applications in aphid pest management. However, this will depend on <i>Regiella</i> being integrated into current control strategies. We therefore investigated the effects of a <i>Regiella</i> strain on chemical and entomopathogen tolerance across two species, <i>Myzus</i> <i>persicae </i>(Sulzer) (Hemiptera: Aphididae) and <i>Rhopalosiphum</i> <i>padi </i>(L.) (Hemiptera: Aphididae), focusing on an uninfected and transinfected strain of <i>R. padi </i>with <i>Regiella</i>, and a naturally infected strain of <i>M. persicae</i> coupled with its cured strain. We consider three insecticides registered in Australia for aphid control – pirimicarb (carbamate), dimethoate (organophosphate) and imidacloprid (neonicotinoid) – along with effects of the generalist entomopathogen, <i>Beauveria bassiana</i>. There was no effect of <i>Regiella</i> on tolerance to the three pesticides in either species. Species differences in response to the entomopathogen were found, with <i>M.</i> <i>persicae</i> having a sharper increase in mortality at day 14 of exposure, and <i>R. padi</i> showing a more gradual response. Mortality was mostly not influenced by the endosymbiont. Fecundity was decreased by entomopathogen exposure particularly at the highest concentration of 100,000,000 spores/mL in both species, and this effect persisted in <i>M. persicae</i> across an untreated generation. These results suggest that attempts to use <i>Regiella</i> within the context of pest control may not interfere much with traditional chemical or novel entomopathogen control approaches.</p> 2026-09-22T23:51:29Z Dataset Dataset 10.6084/m9.figshare.33969259.v1 https://figshare.com/articles/dataset/_DATASET_Testing_i_Regiella_insecticola_i_effects_on_chemical_and_entomopathogen_tolerance_across_two_aphid_species/33969259 CC BY 4.0