Journal
NANOMATERIALS
Volume 12, Issue 9, Pages -Publisher
MDPI
DOI: 10.3390/nano12091558
Keywords
nanobiopesticide; biocontrol; plant protection; blastospore; M; robertsii metabolites; modified of silicon dioxide nanoparticles
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Funding
- Russian Science Foundation [22-16-20031]
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The study found that modified silicon dioxide nanoparticles have insecticidal effects on Colorado potato beetles and cabbage beetles, especially when ingested. In addition, these nanoparticles also increase the susceptibility of insects to Bacillus thuringiensis and Metarhizium robertsii, thereby enhancing the efficiency of these biopesticides.
Three types of modified silicon dioxide nanoparticles (SiO2, 10-20 nm) with additives of epoxy, silane and amino groups, used independently and in combination with the entomopathogenic bacteria Bacillus thuringiensis subsp. morrisoni and fungus Metarhizium robertsii were tested against Colorado potato beetle (Leptinotarsa decemlineata) and cabbage beetles (Phyllotreta spp.). All three nanoparticles were found to have an entomocidal effect on Colorado potato beetle larvae and crucifer flea beetles when ingested. Increased susceptibility of insects to B. thuringiensis or M. robertsii blastospores and their metabolites was shown after exposure to the modified silicon dioxide nanoparticles. The potential of modified silicon dioxide nanoparticles to enhance the efficiency of biopesticides based on the bacteria B. thuringiensis and fungi M. robertsii is considered in the paper.
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