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Your Position ：Home->Past Journals Catalog->2002 Vol.1

Relationship between the spatial distribution pattern of Dictyploca japonica eggs and the environment.
Author of the article:HE Xing-Wen1，PU Yong-Lan1，CHEN Jie1，YANG Shi-Zhang1,FU Cheng-Song 2,CAI ZeRong3
Author's Workplace：1.(Chongqing Forest Pest Control and Quarantine Station, Yongchuan 402160, China)；2.(Forestry Bureau of Chengkou County, Chongqing 405900, China)；3.(Science Committee of Chengkou County, Chongqing 405900, China).
Key Words：Dictyploca japonica Moore; eggs; spatial distribution; trunk height; tree′s age
Abstract：Dictyploca japonica Moore has one generation a year in Chengkou County, Chongqing, and overwinters in the egg stage. The egg distribution is related to tree age and trunk height. Eggs is mainly laid on twenty to thirty years old walnut tree (J
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