Development of an Innovative Mechanical–Aeraulic Device for Sustainable Vector Control of Nymphs of Philaenus spumarius

Several management strategies based on different approaches have been proposed to contain the spread of the pest Xylella fastidiosa, but novel, effective, and sustainable physical methods are still needed. The present study is focused on the design, construction, and testing of an innovative mechanical–aeraulic device which implements a physical vector control strategy against the nymphs of Philaenus spumarius. The developed machine generates an airstream with proper temperature, shape, and velocity to impact the nymphs sheltered in the protective white “spittle” and cause their impairment or death. The machine generates a hot airflow with a temperature of 71.9 °C at 10 cm and 65.4 °C at 30 cm and a speed of 8.6 m s−1 at 10 cm to 6.2 m s−1 at 30 cm from the central axis of the outlet section. The area affected by the hot airflow was 2.65 m2, and the recorded mean temperature of the vegetation in this area was 60.2 ± 2 °C. The mean mortality rate of nymphs of Philaenus spumarius reached by using the developed machine was 84.3%.