 In extreme droughts, it may defoliate completely.The two major threats to the species are small bamboo borers ("Dinoderus minutus"), which as adults bore stems in India, China, Philippines, Australia, and Japan, and bamboo weevils ("Cyrtotrachelus longimanus"), which destroy shoots during their larval stage in South China.Other pests include leaf blight ("Cercospora"), basal culm rot ("Fusarium"), culm sheath rot ("Glomerella cingulata"), leaf rust ("Kweilingia divina"), and leaf spots ("Dactylaria").