Nicolas, J. 1979 La cochenille du pou de San José: Les périodes d'essaimage et la lutte chimique. [The San José scale: Periods of swarming and chemical control.]. Bulletin technique des Pyrénées-Orientales 93: 143-148.
Notes: Various chemical treatments are evaluated for control against Aspidiotus perniciosus in Roussillon, France. The natural parasite Prospaltella perniciosi was found not to be sufficiently effective for control.