Pineapple (Ananas comosus L Merr) is a type of tropical plant originating from Brazil, Bolivia and Paraguay. This type of plant is included in the pineapple family (Family Bromeliaceae). However, there are several obstacles found in pineapple plants, one of which is disease. The purpose of this study was to determine the development of leaf spot disease on pineapple plants from Betung Village, …