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Causes of Leaf Drop in Bonsai Ficus in Northern Cultivation and Preventive Measures
Ficus (Ficus microcarpa L.) is an evergreen ornamental plant of the Moraceae family, generally grown as bonsai in the north. Its leaves are bright green, its branches and trunk are vigorous and rugged, and its forms are endlessly varied; the coiled and twisting aerial roots in particular give a sense of antiquity, desolation and richness. It is an excellent bonsai plant. However, bonsai ficus grown in the north always drops its leaves, seriously affecting its ornamental effect. The author has investigated this for many years, analyzed the causes, and summarized preventive methods. 1 Causes of leaf drop Leaf drop of bonsai ficus in the north can be divided into two