Beingolea, G. 1957 Una evaluación aproximada de la eficiencia de los enemigos biológicos de Pseudococcus citri Risso, en algodonero. [An evaluation of the effectiveness of biological control by natural enemies of Pseudococcus citri Risso on cotton.]. Informe mensual (Estación Experimental Agricola de "La Molina", Lima, Peru) No. 359: 23-25.

Notes: This experiment tested the effectiveness of the natural enemies for biological control of P. citri by comparing the populations of the pest with and without chemical treatments. Results indicate that the natural enemies do lower the populations of P. citri in the absence of chemical treatments.