Document Type : Original Paper

Authors

1 Department of Entomology, Arak Branch, Islamic Azad University, Arak, Islamic Republic of Iran

2 Department of Pesticides, Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Islamic Republic of Iran

Abstract

Pesticides play an important role in increasing food production by pest control. Most pesticides are less soluble in the aqueous media and need organic solvents for desirable efficacy, causing environmental pollutions. Nanopesticides overcome the problems associated with native pesticides through reduction in the quantity of pesticide and controlling the risks for human and environmental health. In this research, chlorpyrifos (CPS) was loaded in Ag/PEG/Cs nanoparticles (Ag/PEG/Cs/CPS NPs) and then evaluated as a nanopesticide against Microcerotermes diversus Silvestri (Isoptera: Termitidae). The target nanopesticide was characterized by XRD, UV-VIS, FT-IR, and TEM. The results revealed that the NPs were spherical with the medium-sized of 11 nm. The biological activity of the NPs was also estimated in vitro against Microcerotermes diversus. The results confirmed the effectiveness of the nanopesticide at concentrations of 0.05 µl/l (5 ppm) after 48 h against termites and also at a lower concentration of 0.005 µl/l (50 ppm) after 72 h. The nanopesticid could be considered as a promising alternative to the conventional harmful pesticides for controlling termites.

Keywords

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