Allium deters borers.
Contested · none if ignored → inert
The evidence
Evidence: none exists for the underlying claim - that absence is the point.
Plants this fires on
Cite this page
Milpa Gardens. "Allium deters borers." Evidence grade: Contested. https://milpa.garden/rules/allium-deters-borers/
A garden-planning corpus: every claim states its evidence grade and links its sources on the page. Cite it with the grade, and add the date you read it.