Hamed, . S.R. , Abdel-Hak, . R.E.- said . and Saleh, M.M.S. 2025. Preparation of green-nano zinc, and study its inhibitory effect on powdery mildew disease under laboratory conditions . Current Research in Agricultural Sciences. 12, 2 (Dec. 2025), 193–201. DOI:https://doi.org/10.18488/cras.v12i2.4599.