Viel, G. 1946 [Study of the insecticide value of several products in the control of the San Jose scale (Quadraspidiotus perniciosus Comst.)].. Annales des Epiphyties 12(4): 401-413.

Notes: [Original title: Étude sur la valeur insecticide de produits divers dans la lutte contre le pou de San-José (Quadraspidiotus perniciosus Comst.).] This paper reports the results of chemical trials of various types used against this scale.