Evaluation of Flower Thinning Applied to Yardlong Bean Production

Abstract

Due to fungal infection, using fungicide on yardlong bean during the harvest period is unavoidable. Application of fungicide caused fungicide residue on mature pods, as a result, the pods could not meet the recommended standards for edible period. In this study, we used flower thinning technique by spraying fungicide at juvenile pod stage instead of mature pod stage. 長豇豆在收穫期間無可避免因罹病而需要噴施殺菌劑，當此成熟豆莢尚未達到農藥推薦使用之安全期標準而予以採收，極易有藥劑殘留於豆莢的情形。本研究中藉由疏花操作來創造幼莢階段，以提供噴施殺菌劑的機會，並評估疏花對長豇豆產量的影響。