Reviewed notes and corrections
Arithmetic correction: with equal 300-bee samples, a reduction from 12 mites to 2 is (12−2)/12 × 100 = 83.3%. The image’s 82.5% comes from using rounded percentages. A before-and-after wash is an observational change, not automatically a controlled efficacy estimate. The pictured Mite Defender and four-hour setting are illustrative prototype material, not validated instructions.
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The original image is displayed above. Where its wording differs from these reviewed notes, use the corrections on this page. The downloadable image itself has not yet been revised.
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VarroaDestructor.com · Reviewed October 14, 2026
