| 南华松叶蜂生物学及其防治 |
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| 引用本文： | 方文成.南华松叶蜂生物学及其防治[J].西南林学院学报,1988(2). |
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| 作者姓名： | 方文成 |
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| 作者单位： | 江川县林业局 云南 |
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| 摘 要： | 南华松叶蜂Diprion nanhuaensis Xiao是云南松的重要害虫之一。除本省外,贵州也有分布。该虫在云南以为害云南松中幼林为主,对树木生长造成严重影响。在云南江川地区一年发生二代,以茧蛹越冬。越冬代成虫5月上旬,第一代成虫8月中旬开始羽化。幼虫进入三龄取食全叶为害加重;第一代7月,第二代(即越冬代)10月是幼虫为害盛期。本文提出了以营林措施为主的综合防治方法。由于成虫飞翔能力弱,喜产卵于两米以下松针叶肉内的习性,因此要求适树适地优质造林,加强幼林抚育,加快成林速度,使不利于成虫活动产卵;利用南华松叶蜂各虫态的发生与节令、物候及农林生产活动等的关系,进行虫情预测,适时采取人工捕杀幼虫,清除害虫茧蛹及必要的化学手段防治幼虫。
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| 关 键 词： | 南华松叶蜂 生物学 综合防治 |
ON THE BIOLOGY AND MANAGEMENT OF THE PINE SAWFLY DIPRION NANHU AENSIS XIAO |
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| Fang Wencheng.ON THE BIOLOGY AND MANAGEMENT OF THE PINE SAWFLY DIPRION NANHU AENSIS XIAO[J].Journal of Southwest Forestry College,1988(2). |
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| Authors: | Fang Wencheng |
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| Abstract: | This paper deals with the biology and management of the pine sawfly Diprion nanhuaensis Xiao, a serious leaf-infesting pest of Yunnan pine (Pinus yunnanensis Franeh). The life history and other major biological characteristics of the pest are presented in the text. Management suggestions are made as follows:(1) I reproving the silvicultural and managerial practices to accelerate the sapling growth of the host can minimize the host's suitability for insect egg-laying; (2) A good sanitation in the infested forest during winter will keep down the pupal population of the pest; (3) Hand treatment of the aggregated larvae is found feasible. When necessary, a dosage of emulsified D D V P will give a good control of larvae. Under a suitable temperature and humidity condition, the Beauveria bassiana preparation is found effective for suppressing the larva/population; and (4) Some phenological phenomena are found helpful to monitoring the pest abundance and impplementing timely control. |
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| Keywords: | Diprion nanhuaensis Xiao Bionomics Integrated control |
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