Sokoloff, V.P., & Klotz, L.J. 1942 Mortality of the red scale on citrus through infection with a spore-forming bacterium.. Phytopathology 32: 187-198.

Notes: A denitrifying bacillus, unidentified with any of the known microorganisms, is able, under laboratory conditions, to invade and destroy the adult Aonidiella aurantii on lemons. Infection and death of the scale is accompanied by a significant decrease in soluble-nitrate content. It is possible that the lethal effect of the bacillus is related to the reduction of nitrate inside the insect.