| 摘要 |
PROBLEM TO BE SOLVED: To provide a pest control agent for powdery mildew which can generate a large amount of OH radicals.SOLUTION: A pest control agent for powdery mildew is composed of trivalent iron ions, hydrogen peroxides and oxalates, and has a pH of 3-4.5. The agent is used for prevention or treatment of plant powdery mildew. |
