Hung Mei-chu, the head of breeding at the Taichung District Agricultural Research and Extension Station (DARES), says that Koshihikari rice is very fragile and has low resistance to heat, pests, and disease. As a strain that requires a lot of tender loving care, it isn't suitable for Taiwanese farmers, most of whom are getting along in years.
台中農改場作物改良課課長洪梅珠說，越光米非常「嬌弱」，對稻熱病、蚊枯病抗體較弱，是一種需要費心照顧的品種，並不適合年紀普遍稍長的台灣農民種植。