Control of <i>Diaphorina citri</i> (Hemiptera: Liviidae) using environmentally friendly chemical alternatives

<i>Diaphorina citri</i> poses a serious threat to citrus. Here, the nymphicidal activity of mineral and soybean oils, organosilicon, and citrus-essential-oil-derived adjuvants was evaluated. Additionally, mineral and soybean oils were studied for antifeedant and repellent effects on adults. Residual effect on the parasitoid <i>Tamarixia radiata</i> was also assessed. Nymphicidal activity ranged between 65–83%, with Silwet enhancing mineral and soybean oil efficacy. Evaluated soybean and mineral oil exhibited comparable antifeedant and repellent effects on adults. All products caused &lt;20% mortality in <i>T. radiata</i>, even 24 h after spraying. Overall, tested adjuvants and oils offer promising eco-friendly alternatives for sustainable <i>D. citri</i> management.