title: [On the causes of mite pest outbreaks in mono- and poly-cultured moso bamboo forests].
abstract: In this paper, the damage of phytophagous mites Schizotetranychus nanjingensis Ma & Yuan, Aponychus corpuzae Rimando and Aculus bambusae Kuang to moso bamboo (Phyllostaychs pubescens) was examined for ten pairs of mono- and poly-cultured forests at six locations in Fujian, China. The results showed that the mite damage in mono-cultured forests (35%) was twice as high as that in poly-cultured forests (17.5% < the injury level of 20%), and the difference was significant by t-test. The total pest mites in the mono-cultured forests at six locations in Fujian were 289.29% as high as those in the poly-cultured stands. Typhlodromus bambusae, a nature enemy in the poly-cultured forests at five locations in Fujian, was 262.5% as high as that in the mono-cultured forests. The proportion of pest mite and nature enemy in the mono-cultured forests was 1:118, but was 1:13 in the poly-cultured forests. The change of bamboo cultivation (mono-culture, crowding of bamboo plants, and removal of underfloor plants) might be the major cause of mite pest outbreaks in moso bamboo forests.
authors.affiliation: Institute of Plant Protection, Fujian Academy of Agricultural Science, Fuzhou 350013, China. zyxli@pub3.fz.fj.cn
authors.forename: Yanxuan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Zhiqiang
authors.initials: Z
authors.lastname: Zhang
authors.forename: Saito
authors.initials: S
authors.lastname: Yutaka
authors.forename: Qiaoyu
authors.initials: Q
authors.lastname: Liu
authors.forename: Jie
authors.initials: J
authors.lastname: Ji
mesh_terms: D000818:Animals; D008925:Mites / Q000254:growth & development*; D010572:Pest Control, Biological / Q000379:methods; D006109:Poaceae / Q000469:parasitology*; D011157:Population Dynamics; D011235:Predatory Behavior; D014197:Trees / Q000469:parasitology*