Layman's explanation:Captan was introduced in the 1950s and is used to control fungal growth on fruit, ornamental, and vegetable crops. It inhibits mycelial growth from germinating fungus spores and is very commonly used in apple orchards. Captan is generally nontoxic, as classified by toxicity class IV, but can cause skin and eye irritation in concentrated forms. It is a nonsystemic phthalimide fungicide. Captan is white in its commercial use and a clear crystal in pure form. It has a pungent smell in its commercial form. Captan for the most part has not been used on food crops since 1989.
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