**9. Conclusion**

The introduction of probiotics into the insect industry and their mass-rearing could be game changers. Insect farming is useful for biocontrol, such as the sterile insect technique, but it is also useful for edible insects. Probiotics used in mass-rearing can provide enormous benefits by increasing production quality and quantity. However, when using them, certain security aspects must be considered. We believe that the proposed schemes for probiotic selection in medfly rearing are well suited to all insects mass-reared for SIT application and can be adapted for other types of rearing and modified according to the specificity of the insect in question. However, the global approach incorporating new OMICs techniques is applicable to all types of insect farming and can provide answers to all of the interactions that the selected probiotic will have with the host microbiota.
