Dataset: The effects of water deficiency and the fungus Beauveria bassiana on the bioactivity of Allium cepa (onion) extracts against grapevine mealybug (Planococcus ficus).

This dataset is based on a study that focuses on the singular and interactive effects of Beauveria bassiana inoculum and water stress on plant growth, secondary metabolite contents, and antioxidant and repellent activities of Allium cepa extracts. Plant growth parameters, including weights and bulb circumference, were assessed. Data on secondary metabolites, including volatile constituents and antioxidant and insect-repellent activities of plant extracts, were collected.  

The study received ethical approval from the Faculty Research Ethics Committee (Reference no. 213119196/06/2019)