According to Wang Chi-fa, who heads up the Checheng Farmers 'Association, "Onions thrive when it's dry, and Hengchun's dry climate prevents insects from doing them damage. Not only that, the chinook winds blow away harmful pests and mist, which stimulates the onions' growth and facilitates their harvesting, drying and storage."
車城鄉農會王啟發主任表示：「洋蔥喜歡乾燥，恆春的乾燥氣候能減少病蟲害發生，而且落山風也可以吹走害蟲與霧氣，促進蔥球成熟，便於採收、曬乾及儲藏。」