This prompts the question, "Are vampires repelled by all alliums or just garlic?" I feel like the answer to this question could advance antivampire defense technology significantly. To get started, I'll just need $10M and as many vampires as I can get. DM me for details.
I'd assume it follows the same pattern in the relationship between wild and cultivated species/cultivars, with the wild species being smaller and less potent in the desired characteristics. I can see you're a much-learned person in this field of study, and I encourage you to apply for a position once we get the funding.