The larval accumulative mortality of tested insect species enhanced progressively with the increase of exposition times (7 days). In the case of tested insects, rosemary oil gave the highest accumulative mortality percentages. The persistence effects of tested nano oils on foam and covering gunny bags showed various biological activates by reducing number of eggs, almost suppressing the percentages of progeny emergence (F1) and high percentages of malformation of tested insects. The efficacy of the tested nano oils on the weight loss of wheat grains after 90 days of storage was experimented.
