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Varroa remains the greatest threat to bees and beekeeping. The mite, and the viruses it transmits, are responsible for most overwintering colony losses. To avoid these mite levels must be minimised. This presentation discusses some of the science behind why Varroa and viruses are a threat to our bees before moving on to practical beekeeping considerations including how and when to control Varroa in your hives. Many beekeepers treat at the wrong time of the season, or use the wrong treatment, for maximal effect. In addition to a late summer and midwinter treatment (which should be all that are needed for successful Varroa management) the opportunities to treat in the middle of the season, the importance of managing Varroa in swarms and the strategic, landscape-scale, management of Varroa are also discussed.
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