Originally Posted via link as above
My point is, that a hobbyist may
find that sugar dusting, or any other method or treatment, may
be enough to help their colonies to survive, especially if they are using Russian, other mite resistant, survivor, or feral stock. However, the flip side is that a beekeeper may
completely convince himself that a certain method is “working” since their bees survived last season. In actuality, the bees’ survival may
have be due to other factors; the beekeeper’s pet treatment may
have been of little more benefit than a placebo, yet made the beekeeper feel good because they were doing something! (This applies to commercial beekeepers, too). I suggest that we be careful of “cures” until they are well proven by controlled trials (using test and control colonies).
Bottom line — if you are a hobbyist and use mite resistant stock, then you may
be able to get by with minimal mite management. If you use screened bottoms, then sugar dusting is an option that may
help. For determining mite infestation levels, sugar dusting is great! In my next article, I will present the results of my field testing of sugar dusting, including mite drop rate hour by hour, a comparison of dust-accelerated mite drop to other sampling methods, and a fresh look at varroa treatment threshold levels.