Nosema (Fumidil® - B box)
The best defense against nosema is to winter strong colonies with plenty of honey in the proper position and with young vigorous queens. In addition, Fumidil-B (Fumagillin), fed in syrup, have proven effective in suppressing nosema in over-wintered colonies and newly-established packages. Since fumagillin does not affect spores of the nosema parasite, treatment will not completely eliminate the disease, but only suppress the vegetative stage. The infection will often continue after the medicated syrup has been consumed. Fumagillin is less effective when fed with powdered sugar, extender patties, candy, or pollen supplements.
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