Not Approved for Sale or Use in California.
Top Cop with Sulfur is a formulation of tribasic copper sulfate and micronized, flowable sulfur. Tribasic copper sulfate is insoluble in the formulation and as applied. In the field, the fine particles of elemental sulfur gradually combine with oxygen in the air to form sulfate. The sulfate on the leaf surface creates a mild acid that dissolves the tribasic copper sulfate into the soluble copper ion needed to kill bacteria and fungi. Because the soluble copper is released gradually, Top Cop with Sulfur does not burn the leaf.