He started work on mites in 1880 with the USDA . In 1915 he authored the first comprehensive English handbook on mites : " A Treatise on the Acarina, Or Mites " ( Smithsonian Institution, Proceedings Of The United States National Museum, 1905, 114 pages ).
12.
Increased international commerce has moved diseases of the honey bee such as American foulbrood and chalkbrood, and parasites such as varroa mites, acarina mites, and the small African hive beetle to new areas of the world, causing much loss of bees in the areas where they do not have much resistance to these pests.
