Abstract
BackgroundInsecticide resistance is the major threat in pest control management. Formulation with silver nanoparticle can be used as an alternative method to overcome these problems. Nanoparticles can provide a cheap and reliable source against Tribolium castaneum. The primary aim of our study is to compare the insecticidal efficacy of nanoparticles with commercial insecticide malathion.ResultsDue to the problems associated with the indiscriminate use of synthetic insecticides which promote the insect resistance, it is necessary to give an extra impulse to search alternative ways to control this pest. Silver nanoparticle can provide an accurate solution. In this study, the silver nanoparticles were synthesized, characterized and tested against the Tribolium castaneum. Characterization of the silver nanoparticles was done using ultraviolet-visible (UV-Vis) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). The study was conducted to compare the mortality rate, ovipositional deterrent, repellent activity and antifeedent activity of different concentration of malathion, silver nanoparticles and the mixed suspension of silver nanoparticles and malathion against Tribolium castaneum. Results of all the assays clearly showed that the combination of silver nanoparticles with malathion shows high insecticidal efficacy.ConclusionDevelopment of resistance to the pesticide is acknowledged as the most serious problem in pest control. Nanotechnology can revolutionize agriculture and can provide a solution for pest management. The results from the study suggest that the silver nanoparticles have the pesticidal property which is an alternative solution for the insecticide resistance.
Highlights
Insecticide resistance is the major threat in pest control management
The results revealed that the highest reduction in the oviposition was brought by the mixed suspension of the malathion and the silver nanoparticles (71.5%) followed by
Nanotechnology plays an important role in pest control management
Summary
Insecticide resistance is the major threat in pest control management. Insects and pests increase the risks of spoilage of crops. They are the real threat to the agriculture fields as well as the post-harvesting grain crops. Damage caused by the insects affects the quality, the quantity and the commercial value of the products (Tagizadeh and Mohammadkhani, 2017). Worldwide losses in stored grains caused by insects have been estimated to be between 5 and 10% in temperate and 20-30% in tropics Insects are controlled principally by the use of insecticides, but several commonly used chemicals are no longer recommended for use on stored grains because of their potential health hazards to humans; there is a need for safer and effective methods of insect control
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