Occurrence regularity and control measures for pests anddiseases in Castanea henryi of Zhenghe County

Production condition of Castanea henryi gardens in Zhenghe County were observed and investigated for many years. The results showed that the main pests and diseases existed in Castanea henryiI were blight, bark pimple like dead branch, anthracnose, black root damping-off, chestnut gall wasp, peach borer, dark aphides, and clearwing moth. The corresponding occurrence regularity and control measures were put forward in this paper.