| 杨 灿1, 2, 母银林1, 2, 汪 洁1, 2, 黄纯杨3, 张长华3, 喻会平4, 陈祥盛1, 2*.蠋蝽成虫对两种烟草害虫卵及3龄幼虫的捕食功能反应[J].植物保护,2022,48(1):158-162. |
| 蠋蝽成虫对两种烟草害虫卵及3龄幼虫的捕食功能反应 |
| Predatory functional responses of Arma chinensis (Fallou) to the eggs and 3rd instar larvae of two tobacco pests |
| 投稿时间：2020-12-17 修订日期：2021-03-05 |
| DOI：10.16688/j.zwbh.2020678 |
| 中文关键词: 蠋蝽 烟青虫 斜纹夜蛾 生物防控 捕食功能反应 |
| 英文关键词:Arma chinensis Heliothis assulta Spodoptera litura biological control predatory functional response |
| 基金项目:贵州省烟草公司遵义市公司科技项目(遵烟计［2018］11号);中国烟草总公司贵州省公司重大科技专项(中烟黔科［2019］10号) |
| 作者 | 单位 | E-mail | | 杨 灿1, 2, 母银林1, 2, 汪 洁1, 2, 黄纯杨3, 张长华3, 喻会平4, 陈祥盛1, 2* | 1. 贵州大学昆虫研究所, 贵阳 550025
2. 贵州大学昆虫资源开发利用省级特色重点实验室, 贵阳 550025
3. 贵州省烟草公司遵义市公司, 遵义 563300
4. 贵州省烟草公司毕节市公司技术中心, 毕节 551700 | chenxs3218@ 163.com |
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| 中文摘要: |
| 为探究蠋蝽对两种烟草害虫烟青虫和斜纹夜蛾的捕食能力, 在室内可控条件下开展了蠋蝽雌雄成虫对烟青虫和斜纹夜蛾卵及3龄幼虫的捕食试验, 利用HollingⅡ功能模型拟合蠋蝽雌雄成虫对烟青虫和斜纹夜蛾的捕食功能反应。结果表明, 蠋蝽雌成虫对烟青虫和斜纹夜蛾的瞬时攻击率为:烟青虫3龄幼虫(1.056)＞斜纹夜蛾卵(1.055)＞烟青虫卵(1.035)＞斜纹夜蛾3龄幼虫(0.973);控害效应高低为:烟青虫卵(152.21)＞斜纹夜蛾卵(124.18)＞烟青虫3龄幼虫(15.09)＞斜纹夜蛾3龄幼虫(9.63);蠋蝽雄成虫对烟青虫和斜纹夜蛾的瞬时攻击率为:烟青虫卵(1.060)＞斜纹夜蛾卵(1.056)＞烟青虫3龄幼虫(0.825)＞斜纹夜蛾3龄幼虫(0.760);控害效应高低顺序为:斜纹夜蛾卵(111.16)＞烟青虫卵(101.92)＞烟青虫3龄幼虫(8.87)＞斜纹夜蛾3龄幼虫(7.04)。随着烟青虫和斜纹夜蛾密度的增加, 蠋蝽成虫的搜寻效应会逐渐下降。研究结果表明蠋蝽雌雄成虫对烟青虫和斜纹夜蛾具有良好的防控能力, 因此, 可结合害虫预测预报, 在烟青虫和斜纹夜蛾产卵高峰期和3龄幼虫发生前期大量释放蠋蝽成虫以降低两种害虫的种群数量, 减少其对烟草的危害。 |
| 英文摘要: |
| To explore the predatory potential of Arma chinensis against Heliothis assulta and Spodoptera litura, the predation of the eggs and 3rd instar larvae of H . assulta and S.litura by A.chinensis adults was measured under controlled conditions in the laboratory. The predatory functional responses of A.chinensis adults fitted the Holling Ⅱ function model. The instantaneous attack rates of A.chinensis female adults to the pests from high to low were: the 3rd instar larvae of H.assulta (1.056), eggs of S.litura (1.055), eggs of H.assulta (1.035), the 3rd instar larvae of S.litura (0.973). The predation capacities from high to low were: eggs of H.assulta (152.21), eggs of S. litura (124.18), 3rd instar larvae of H. assulta (15.09) and 3rd instar larvae of S. litura (9.63). The instantaneous attack rates of A.chinensis male adults to the pests from high to low were: eggs of H.assulta (1.060), eggs of S. litura (1.056), 3rd instar larvae of H.assulta (0.825), 3rd instar larvae of S.litura (0.760). The predation capacities from high to low were: eggs of S.litura (111.16), eggs of H. assulta (101.92), 3rd instar larvae of H.assulta (8.87), and 3rd instar larvae of S. litura (7.04). With increasing densities of H. assulta and S. litura, the searching efficiency of A. chinensis adults decreased gradually. This study suggested that A. chinensis adults had a good control ability against H. assulta and S. litura. Combined with pest forecast and prediction, releasing a large number of A .chinensis adults during the oviposition peak period and occurrence prophase of 3rd instar H. assulta and S. litura can help reduce the pest population size and decrease its damage to tobacco. |
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