On behalf of the Hellenic Society of Phytiatry we welcome you on the website of the XX IPP Congress which is going to take place at the Megaron Conference center in Athens Greece, in July 1-5, 2024. The Congress is hosted by the Hellenic Society of Phytiatry in Athens, Greece and organized under the auspices of the International Association for the Plant Protection Sciences (IAPPS), and of the Agricultural University of Athens.