For this purpose, the following analyses were conducted for both species: higher heat value (HHV), elemental analysis, proximate analysis, thermogravimetric analysis to obtain constituent natural polymers (hemicellulose, cellulose, and lignin), and extraction of essential oils and other interest chemical compounds through supercritical fluids. This research focused on providing a physicochemical characterization and essential oils extraction of both species to better understand their potential valorization and guide further environmental management efforts. Gorse (Ulex europaeus) and French broom (Genista monspessulana) are two highly invasive species that have become a threat to tropical countries, especially in Andean ecosystems. argentatum is able to complete its entire development lifecycle on the non-target species where galls have previously been observed. In the future, new tests will be conducted to determine if L. Results revealed the presence of galls and larvae in the stems of seven species, including two endemic Californian lupines i.e., Lupinus arboreus blue and Lupinus chamissonis. argentatum, choice and no-choice tests were performed in 20 on a total of 36 non-target closely related species. The impact on the reproduction of French broom was studied in Southern France and revealed that it could effectively reduce the number of viable seeds by 18.8%, but also increased the number of aborted seeds by 10% within the attacked pods. Its capacity to develop both in the stem galls and pods of French broom makes it a promising candidate. The current research is focused on biocontrol with the use of the phytophagous weevil Lepidapion argentatum (Brentidae). Introduced in the 19th century as an ornamental plant, it is currently invasive in California and Australia.
French broom (Genista monspessulana) (Fabaceae) is a perennial species native to the Mediterranean basin.
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