Biological control of the pustule scale in Puerto Rico
PDF

How to Cite

Wolcott, G. N. (1953). Biological control of the pustule scale in Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, 37(3), 228–233. https://doi.org/10.46429/jaupr.v37i3.12752

Abstract

The perfection of biological control results in only apparent extermination for a period of years. The pustule scale, Asterolecanium pustulans Cockerell, so eagerly eaten by the introduced twice-stabbed ladybeetle, Chilocorus cacti Linnaeus, as to result in its complete disappearance, appeared again in Puerto Rico after 12 years.
https://doi.org/10.46429/jaupr.v37i3.12752
PDF

Downloads

Download data is not yet available.