elham jalali - Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran
shahab maghsoudi - Young Researchers Society, Shahid Bahonar University of Kerman, Kerman, Iran
rasoul marzban - Biocontrol Department, Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization, Tehran, Iran

We compared the protective effect of two UV-protectant; graphene oxide nanosheet and olive oil, on the stability of formulation of Bacillus thuringiensis after exposure to Ultra Violet (UV). Biological insecticide Bacillus thuringiensis subsp. kurstaki is one of the most important biological control agents. The main factors which affect the disable performance of Bt are UV. In this study we show that graphene oxide nanosheet can be used as protective UV-A and increased UV-protective effect of olive oil. The mortality of irradiated olive oil formulations on second-instar larvae of Ephestia kuehniella was 89.2%. However, the mortalities caused by irradiated combination formulations of graphene oxide and olive oil was 93.2% on the 10th day of the experiment

UV-protectant, Bacillus thuringiensis, Graphene oxide, Olive oil