Agrinsieme, Agricultural Products Cooperation Alliance of Italy said since 2018 hazel nuts plantation area has increased about 5000ha.; however, under impact of weather and pesticide, national hazel nut yield will drop sharply in 2021-2022 season. The yield of unshelled hazel nuts is expected to be 45,000t-48,000t (136,000t last year), in which, the yield in Piedmont Region will drop 55%, in Lazio Region and Campania Region drop 70%, and in Sicilia drop 80% by prediction.