Research and development of information concerning the effects of Tracheal mites have been given secondary status while control stratagems for Varroa have been developed. There are differing opinions as to how much of a threat tracheal mites are to U.S. beekeepers - especially for those who keep bees in warm climates. Infested adults may act irritated or disoriented. Weak adults may be found crawling aimlessly near the hive entrance. Microscopic examination of the bees respiratory system is required to conclusively show the presence of the tracheal mite.
Authorities disagree as to the seriousness of the effects of tracheal mites on honey bees.
Simply finding tracheal mites within the dissected bee does not always mean that disease symptoms will be expressed within the colony. When to Treat with Grease Patties Treatment with grease patties can be continuous. Leave the packet on for 14-28 days with the entrance reduced. If it is above 80 F, put the packet on the bottom board. Below 80 F, place the packet on the top of the brood nest.