Santa-Cecília, L.V.C., Simões, J.C., & Souza, I.F. 2002 Dinamica de populacoes e preferencia alimentar da cochonilha-da-raiz (Pseudococcus comstocki) pela tiririca. [Population dynamics and preferential feeding of mealybug (Pseudococcus comstocki) to purple nutsedge (Cyperus rotundus).]. Planta Daninha 20(1): 39-43.
Notes: The population dynamics of P. comstocki and preferential feeding on Cyperus rotundus were investigated in Minas Gerais, Brazil from March 1996 to March 1997. The mealybug fed on the plant the whole year at different intensities depending on location. Air temperature and relative humidity were the factors that most influenced insect infestation.