Lee et al. (2004) have tested the fumigant toxicity
of 42 essential oils extracted from 42 plant species including
25 Eucalyptus spp. against Sitophilus oryzae adults and
found that six oils including three Eucalyptus spp. were
potent against S. oryzae. Negahban and Moharramipour
(2007) have reported that essential oils from Eucalyptus intertexta,
Eucalyptus sargentii and Eucalyptus camaldulensis had
fumigant toxicity against Callosobruchus maculatus, S. oryzae
and T. castaneum adults.