Varroa, courses, intervals and the doses that get missed.
Most colony losses blamed on winter were decided in August. How the mite peak and the winter bees overlap, what a summer treatment during the flow can do, why waiting for autumn is often too late, and the midwinter oxalic dose that cleans up after both.
Read the post »
When to treat, what with, and what to write down. Monitoring thresholds, the four families of treatment with their temperature windows and courses, what can be used with supers on, whether oxalic acid is safe for bees, and a season plan for both hemispheres.
Read the post »Most varroa treatments are a course, not an event, and the interval exists because mites hide inside capped brood. A half-finished course is worse than none. Here is how each family of treatment is scheduled, and how the app keeps the third dose from being the one that slips.
Read the post »