Matou pomelos maintained their high quality up until 1977, when one third of the trees were destroyed by unusually heavy rains, and the total harvest reduced to a small fraction of expectations. After diagnosis by agronomists it was discovered that the remaining trees suffered from root rot, the result of roots soaking for long periods of time in moist soil during continual rains.
文旦園主要分佈在小鎮邊緣，包圍著中間的市集及住宅區，由空中俯瞰，整個麻豆就像個林木四合的宅院；加上幾乎家家戶戶的宅院中多少都種有一、二棵文旦樹，因此麻豆人稱文旦園為「宅仔」。