| 油松大蚜的种群动态、有效积温及防治 |
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| 引用本文： | 邵东华,段立清,段景攀.油松大蚜的种群动态、有效积温及防治[J].东北林业大学学报,2017,45(7). |
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| 作者姓名： | 邵东华 段立清 段景攀 |
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| 作者单位： | 1. 内蒙古农业大学,呼和浩特,010019;2. 呼和浩特市园林科研植保站 |
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| 基金项目： | 内蒙古自治区林业厅科技支撑项目 |
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| 摘 要： | 通过野外调查和室内不同温度下饲养观察,对油松大蚜(Cinara formosana)生活史、种群动态、有效积温、天敌、物候预测和化学防治进行了研究。结果表明:油松大蚜1年可发生8代,6月中旬分化出有翅孤雌蚜并扩散,10月上旬性蚜交配产卵,以卵越冬;油松大蚜种群数量1年内有2个高峰期,分别在6月上旬和9月上旬,8月上旬—8月中旬种群数量最低;油松大蚜不同虫态的发生与山桃(Prunus davidiana)、连翘(Forsythia suspense)、龙爪槐(Sophora japonica)和火炬树(Rhus typhina)的一些物候相吻合,可通过观察这些植物的物候来预测油松大蚜各虫态发生情况;油松大蚜优势天敌依次为异色瓢虫(Leis axyridis)、七星瓢虫(Coccinella septempunctata)、蚜茧蜂(未鉴定);油松大蚜4个龄期的若虫及全世代的发育起点温度分别为4.5、6.7、5.9、7.7、3.1℃,有效积温分别为48.6、49.3、67.4、62.7、291.7日·度;胶带-药膜法防治油松大蚜效果显著,14 d后处理区校正虫口减退率可达80%以上。
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| 关 键 词： | 油松大蚜 生物学特性 种群动态 有效积温 化学防治 |
Population Dynamics,Effective Accumulative Temperatures and Control Method of Cinara formosana |
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| Shao Donghua,Duan Liqing,Duan Jingpan.Population Dynamics,Effective Accumulative Temperatures and Control Method of Cinara formosana[J].Journal of Northeast Forestry University,2017,45(7). |
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| Authors: | Shao Donghua Duan Liqing Duan Jingpan |
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| Abstract: | We studied the life history, population dynamic, effective accumulative temperatures, natural enemies phenology forecast and chemical control method by field survey and laboratory breeding at different temperatures.There were eight generations in a year for Cinara formosana in the field.Alate viviparous aphids were produced and diffused in middle June.Sexual aphids mated in early October and oviposited.C.formosana overwintered as eggs.The population of C.formosana had two peaks in early June and early September, respectively, but the number decreased sharply during early to middle of August.The occurrence of different stages of C.formosana were consistent with certain phenologies of Prunus davidiana, Forsythia suspense, Sophora japonica and Rhus typhina, so we could predict the occurrence of different stages through phenology observation.The dominant predators were Harmonia axyridis, Coccinella septempunctata and aphid parasitoids.The developmental threshold temperatures of the first, the second, the third, the forth instar nymph and an entire generation were 4.5, 6.7, 5.9, 7.7 and 3.1℃, respectively, and their effective accumulated temperatures were 48.6, 49.3, 67.4, 62.7 and 291.7℃·d, correspondingly.The tape-residual film method had obvious effect on the control of C.formosana and the correction reducing rates were over 80% when treated two weeks later. |
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| Keywords: | Cinara formosana Bionomics Population dynamics Effective accumulative temperature Chemical control |
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