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Position: Home > Articles > 冬型中国梨木虱在梨树不同部位的产卵特点 Plant Protection 2019 (4) 201-204

冬型中国梨木虱在梨树不同部位的产卵特点

作  者：
赵龙龙;张未仲;胡增丽;刘朝红;韩凤;李捷
单  位：
山西省农业科学院果树研究所
关键词：
梨木虱;产卵选择;玉露香梨;梨树
摘  要：
昆虫母代产卵部位的选择特点直接影响到子代的生存适应性,但已有研究对冬型中国梨木虱产卵部位选择特点尚未明确.本研究调查了冬型中国梨木虱随时间变化在梨树花芽、叶芽、枝条基部、花柄、幼叶上产卵特点的变化.结果表明,冬型梨木虱产卵期约45 d,以枝条基部刻痕处着卵量最大,显著高于其他部位.冬型梨木虱产卵部位的选择随梨树的物候变化而变化:萌芽前,优先选择枝条顶芽,其次在腋芽和枝条基部刻痕处产卵;花期和展叶期,花芽、叶芽、枝条基部刻痕处着卵量下降,主要于花柄和幼叶部位产卵;冬型梨木虱产卵部位的选择顺序依次为花芽、叶芽、枝条基部、花柄、幼叶.本研究明确了冬型梨木虱在梨树不同部位产卵的变化特点,研究结果可用于指导梨木虱防控.
作  者：
ZHAO Longlong;ZHANG Weizhong;HU Zengli;LIU Zhaohong;HAN Feng;LI Jie;Pomology Institute, Shanxi Academy of Agricultural Sciences;
单  位：
ZHAO Longlong%ZHANG Weizhong%HU Zengli%LIU Zhaohong%HAN Feng%LI Jie%Pomology Institute, Shanxi Academy of Agricultural Sciences
关键词：
pear psylla;;oviposition selection;;‘Yuluxiang' pear;;pear tree
摘  要：
The survival of progeny directly affected by the oviposition site selection of the parent generation, but the winter-type Psylla chinensis oviposition site selection characteristics is not yet clear. In this study, we investigated the oviposition characteristics of winter-type pear psylla on flower buds, leaf buds, branch bases, flower stalks and young leaves of pear trees. Results showed that the oviposition period of winter-type pear psylla was about 45 days, and the average egg numbers on the base of branches were significantly higher than those on the other sites. The oviposition sites of winter-type pear psylla changed with pear phenology. Before sprouting stage, the top buds of branches were preferentially selected as oviposition sites, followed by axillary buds and branch bases. At blooming and leaf-expansion stages, the oviposition on the flower buds, leaf buds and branch bases decreased, mainly on flower stalks and young leaves. The preferential oviposition sites sequence of winter-type pear psylla were flower bud, leaf bud, base of branch, flower stalk and young leaf. This study confirmed that winter-type pear psylla had different oviposition preferences on different sites of pear tree by time, which provides theoretical guidance to prevent and control of pear psylla.

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