Lebeda Ales author text journal article 2025 With regret, we have to inform the community of plant pathologists, plant virologists, and plant protection scientists. Assoc. Prof. Jaroslav Polák, a former and long-time Plant Protection Science editorial board member, passed away on May 20, 2024. 10.17221/213/2024-PPS https://pps.agriculturejournals.cz/artkey/pps-202501-0008.php https://pps.agriculturejournals.cz/artkey/pps-202501-0008.php continuing 61 1 91 94 2025 12122580 periodical academic journal