Without black ant, Dolichoderus bitubercularus no cacao

Abstract

In 1908, in the Cacao plantation in Malang, East Javahad observed that Cacao ant, D tuberculatus, had protected Cacao pods againts H antonii. In Cacao plantation with well populated of black ants and malybugs, the number of H. antonii were considerably lower. H. antonii will immediately stop feeding and the disturbance by black ants. Therefore, when H. antonii is frequently disturbed they gradually become starved and produced few eggs.