| 摘要: |
| [目的]柚木肖弄蝶叶蛾(Hyblaea puera Crame)是广西红树林区近年出现的新害虫,为了更好保护红树林,对该虫的生物特性及其防治方法进行相关研究。[方法]观察各虫态的形态特征、生活习性、生活史及其主要天敌;分析虫害的爆发原因及其对红树林生态系统所造成的影响,并进行灯诱防治试验。[结果]该虫的幼虫形态在不同龄期、不同世代间均存在显著差异;雌成虫产卵最多834粒,平均477粒;幼虫在红树林中仅取食危害白骨壤Avicennia marina,老熟幼虫会利用非寄主植物的枝叶来筑巢化蛹,成虫常见吸食白花鬼针草Bidens alba(L.) DC.花蜜;该虫在广西沿海发生11代,不同世代的害虫在陆地植被和红树林之间以及红树林不同斑块间转移危害;虫害爆发时会快速吃光树叶并啃食嫩枝表皮和幼果,对白骨壤生长造成较大影响,且取食危害期间的排泄物会造成滩涂土壤酸化;成虫具有较强的趋光性。[结论]柚木肖弄蝶叶蛾对红树林造成的危害极大,有必要对它的发生规律、监测和防治方法等进行更深入的研究;从害虫管控的角度从发,当务之急是监测和防治陆岸上柚木上的害虫,避免害虫向红树林区扩散。 |
| 关键词: 柚木肖弄蝶夜蛾 生物学特性 防治 白骨壤 |
| DOI：10.13656/j.cnki.gxkx.20171011.001 |
| 投稿时间：2017-06-12修订日期：2017-07-05 |
| 基金项目:国家重点研发计划"典型脆弱生态修复与保护研究"重点专项项目(2017YFC0506100),林业公益项目"红树林急速退化死亡的成因及恢复控制技术"(201504413)和广西科技攻关项目(桂科攻1298007-2)资助。 |
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| Characteristics and Control of a New Pest of Avicennia marina—Hyblaea Puera Cramer |
|
LIU Wen'ai1, LI Lifeng2
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| (1.Guangxi Key Lab of Mangrove Conservation and Utilization, Guangxi Mangrove Research Center, Guangxi Academy of Sciences, Beihai, Guangxi, 536000, China;2.Guilin University of Electronic Technology, Guilin, Guangxi, 541004, China) |
| Abstract: |
| [Objective] Hyblaea puera is a new pest in Guangxi mangrove forest in recent years. In order to better protect mangroves, the biological characteristics of the insects and their control methods are studied.[Method] The morphological characteristics of different stages of the pest, living habits and life history of the pest in Guangxi mangrove forest and its main natural enemies were observed. The causes of insect outbreak and its impact on mangrove ecosystems were analyzed and the light trap control test was carried out.[Results] The results showed that the larvae were significantly different in different age and different generations; the insect oviposition was up to 834 particles, with an average of 477;the only insect feeding damage in the Mangrove Avicennia marina, mature larvae would use non host plant leaves to nest in pupation.The insect in Guangxi coast occurred 11 generation, the different generations of pests transferred hazard between terrestrial vegetation and mangrove and different mangrove diversity;pest outbreaks would quickly eat up leaves and gnaw twigs and fruit skin, affect the growth of Avicennia marina, a large number of excreta during feeding damage would cause soil acidification; the adults had strong phototaxis.[Conclusion] In view of the great harm caused by insects on mangrove, it is necessary to carry out in-depth research, including its occurrence, monitoring and control measures;monitoring and control is a pressing matter of the moment on the shore of teak pests, to avoid pests spread to the mangrove area. |
| Key words: Hyblaea puera Cramer biological characteristics control Avicennia marina(Forsk.) Vierh.Hailanci |
