Figure 4From: Efficacy of neem chippings for mosquito larval control under field conditions Mean numbers of mosquito pupae in untreated habitats (empty bar) and in habitats treated with the edible fish Oreochromis niloticus (hatched bar). No pupae were found in habitats treated with the commercial biolarvicide Bacillus thuringiensis israeliensis or with chippings of the neem tree Azadiracta indica.Back to article page