The Survival and Parasitism Rate of Tamarixia radiata (Hymenoptera: Eulophidae) on Its Host Exposed to Beauveriabassiana (Ascomycota: Hypocreales)

The effect of the entomopathogenic fungus Beauveria bassiana (BB-12) on biological characteristics Tamarixia radiata parasitizing Diaphorina citri was studied under laboratory conditions. Twenty 3rd–5th instar nymphs were exposed to a single already-mated female parasitoid (1 day old) and removed after 24 h. Subsequently, sprayed at 1, 48 h post-exposure with 1 × 108 conidial mL−1 suspension. percentage parasitism recorded 22%, 35% 41% h, respectively. emergence rate varied between 28%, 51% 49% In subsequent experiment, D. suspension then T. post-spraying allow for occur. 18%, 27% 28% respectively, significantly lower than in control (48%). 24%, 44% 45% both experiments, no significant difference observed pre-adult duration (days) sex ratio F1 generation. Meanwhile, differences longevity generation females males treatment consisting spraying fungal control. Overall, findings current study revealed negative interaction B. controlling nymphs. This outcome is believed be result antagonistic effects developmental process stages parasitoid. However, our results also show that properly timed application (allowing occur over an extended period time before fungus), could potentially used combination successful citri. should carried out order minimize interactions these two agents.