<p>It is known that four <i>Trioza</i> species attack avocado foliage, with <i>Trioza anceps</i> Tuthill (commonly called the avocado psyllid) being a widespread pest in Mexico and Central America. Both nymphs and adults feed on young leaf sap, but the nymphs induce avocado leaf galls by injecting a toxin during feeding, triggering tissue hyperplasia and hypertrophy. This leads to severe leaf deformations, stunted tree growth, and overall decline in plant health [<CitationRef CitationID="CR1">1</CitationRef>]. The aim of the present research was to evaluate the efficacy of nanomaterials synthesized via the sol-gel method for the control of <i>T. anceps</i>. The treatments included silicon oxide, silicon oxide with pine bark extract, silicon oxide with pine resin, and silicon oxide with both pine bark extract and pine resin. The nanomaterials were characterized prior to laboratory testing. Among them, the SiO₂-pine resin formulation proved to be the most effective, achieving 100% mortality of <i>T. anceps</i> nymphs by day 7 and belonging to the highest statistical efficacy group (group a) according to Tukey’s HSD test (<i>p</i> &lt; 0.05). in [<CitationRef CitationID="CR2">2</CitationRef>]. Material characterization confirmed physicochemical properties enhancing phytoprotective effects, positioning silica-based nanomaterials as sustainable alternatives in modern agriculture [<CitationRef CitationID="CR3">3</CitationRef>, <CitationRef CitationID="CR4">4</CitationRef>].</p> Graphical Abstract <p></p>