Abstract
Observations were made on the histopathology of the eastern subterranean termite,Reticulitermes flavipes (Kollar) infected with the fungusBeauveria bassiana (Balsamo) Vuill. Initial symptoms of infected termites were sluggishness, anal discharge, passivity, and failure to respond to tactile stimuli. Infected fifth instar worker termites changed from a healthy creamy color to a light brown. Penetration of the integument by germ tubes ofB. bassiana occurred as early as 16 hours after inoculation. Infection through the digestive tract also resulted. Following penetration of the integument the fungus attacked the fat body, then the nervous tissue and finally the musculature.
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