Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Valorization of butterfly lavender essential oil as a bioinsecticide.

Abstract

This work is part of the use and enhancement of organic and natural insecticides, for the defense and protection of plant production against pests. The activity of essential oil (ET) of butterfly lavender (Lavandula stoechas) was assessed against Aphis spiraecola of clementine and Tuta absoluta larvae of tomato by the contact toxicity technique. One pure dose and three concentrations of EO were applied topically to the infested leaves. Pest mortality was estimated after 1h, 6h, 12h, 24h and 48h. The corrected percent mortality as well as the lethal doses of 50% and 90% were calculated. The bioinsecticidal test showed that Lavandula stoechas EO has a biocidal effect on the pests studied, especially when applied neat, causing a 100% mortality rate after 48 hours of exposure.