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Evaluating a push-pull tactic for management of Epilachna varivestis Mulsant and enhancement of beneficial arthropods in Phaseolus lunatus L.
Ecological Engineering ( IF 3.8 ) Pub Date : 2020-03-01 , DOI: 10.1016/j.ecoleng.2019.105660
Alan W. Leslie , Kelly A. Hamby , Scott R. McCluen , Cerruti R.R. Hooks

Abstract Restoring ecological services in agroecosystems can compensate for the negative effects associated with agricultural intensification. For example, disruption of natural pest suppression can be mitigated through habitat manipulation to attract beneficial arthropods and alter colonization by herbivores. We evaluated a push-pull habitat manipulation system for its potential to suppress Mexican bean beetle (Epilachna varivestis Mulsant) and augment natural enemies in lima bean (Phaseolus lunatus L.). The push-pull treatment consisted of P. lunatus interplanted with French marigold (Tagetes patula L.) and bordered by wax snap beans (P. vulgaris L.), and was compared with a P. lunatus monoculture. Greater numbers of E. varivestis and other herbivores were found in the push-pull border (P. vulgaris) relative to the monoculture border and interior rows of both habitat types. Abundances of chewing and piercing-sucking predators were greatest in the interior rows of the push-pull treatment, and parasitoids were more abundant in the interior compared to the border rows of the push-pull treatment. However, while Pediobius spp. parasitoid wasps [Pediobius foveolatus (Crawford) attacks immature stages of E. varivestis] were also more abundant in the push-pull than monoculture treatment, their abundance was higher in the border relative to interior rows. Phaseolus lunatus plant productivity was lower in push-pull compared to monoculture habitats. Although further refinement is necessary, this push-pull strategy shows promise for manipulating Phaseolus cropping systems to improve natural pest control.

中文翻译:

评估用于管理 Epilachna varivestis Mulsant 和增强 Phaseolus lunatus L 有益节肢动物的推拉策略。

摘要 在农业生态系统中恢复生态服务可以补偿与农业集约化相关的负面影响。例如,可以通过操纵栖息地来吸引有益的节肢动物并改变食草动物的定殖,从而减轻对自然害虫抑制的破坏。我们评估了推拉式栖息地操纵系统抑制墨西哥豆甲虫 (Epilachna varivestis Mulsant) 和增加利马豆 (Phaseolus lunatus L.) 天敌的潜力。推拉处理包括将 P. lunatus 与法国万寿菊(Tagetes patula L.)套种并以蜡豆(P. vulgaris L.)为边界,并与 P. lunatus 单一栽培进行比较。在推拉边界发现了更多的 E. varivestis 和其他食草动物(P. vulgaris) 相对于两种栖息地类型的单一栽培边界和内部行。在推拉处理的内排中,咀嚼和刺吸式捕食者的数量最多,与推拉处理的边缘排相比,内部的寄生蜂更丰富。然而,虽然 Pediobius spp。寄生蜂 [Pediobius foveolatus (Crawford) 攻击 E. varivestis 的未成熟阶段] 在推拉处理中也比单一栽培处理更丰富,相对于内部行,它们在边界的丰度更高。与单一栽培栖息地相比,Phaseolus lunatus 植物生产力在推拉模式下较低。尽管需要进一步改进,但这种推拉策略显示出操纵菜豆种植系统以改善自然害虫控制的前景。在推拉处理的内排中,咀嚼和刺吸式捕食者的数量最多,与推拉处理的边缘排相比,内部的寄生蜂更丰富。然而,虽然 Pediobius spp。寄生蜂 [Pediobius foveolatus (Crawford) 攻击 E. varivestis 的未成熟阶段] 在推拉处理中也比单一栽培处理更丰富,相对于内部行,它们在边界的丰度更高。与单一栽培栖息地相比,Phaseolus lunatus 植物生产力在推拉模式下较低。尽管需要进一步改进,但这种推拉策略显示出操纵菜豆种植系统以改善自然害虫控制的前景。在推拉处理的内排中,咀嚼和刺吸式捕食者的数量最多,与推拉处理的边缘排相比,内部的寄生蜂更丰富。然而,虽然 Pediobius spp。寄生蜂 [Pediobius foveolatus (Crawford) 攻击 E. varivestis 的未成熟阶段] 在推拉处理中也比单一栽培处理更丰富,相对于内部行,它们在边界的丰度更高。与单一栽培栖息地相比,Phaseolus lunatus 植物生产力在推拉模式下较低。尽管需要进一步改进,但这种推拉策略显示出操纵菜豆种植系统以改善自然害虫控制的前景。与推拉处理的边界行相比,内部的寄生蜂更丰富。然而,虽然 Pediobius spp。寄生蜂 [Pediobius foveolatus (Crawford) 攻击 E. varivestis 的未成熟阶段] 在推拉处理中也比单一栽培处理更丰富,相对于内部行,它们在边界的丰度更高。与单一栽培栖息地相比,Phaseolus lunatus 植物生产力在推拉模式下较低。尽管需要进一步改进,但这种推拉策略显示出操纵菜豆种植系统以改善自然害虫控制的前景。与推拉处理的边界行相比,内部的寄生蜂更丰富。然而,虽然 Pediobius spp。寄生蜂 [Pediobius foveolatus (Crawford) 攻击 E. varivestis 的未成熟阶段] 在推拉处理中也比单一栽培处理更丰富,相对于内部行,它们在边界的丰度更高。与单一栽培栖息地相比,Phaseolus lunatus 植物生产力在推拉模式下较低。尽管需要进一步改进,但这种推拉策略显示出操纵菜豆种植系统以改善自然害虫控制的前景。varivestis] 在推拉处理中也比单一栽培处理更丰富,相对于内部行,它们在边界的丰度更高。与单一栽培栖息地相比,Phaseolus lunatus 植物生产力在推拉模式下较低。尽管需要进一步改进,但这种推拉策略显示出操纵菜豆种植系统以改善自然害虫控制的前景。varivestis] 在推拉处理中也比单一栽培处理更丰富,相对于内部行,它们在边界的丰度更高。与单一栽培栖息地相比,Phaseolus lunatus 植物生产力在推拉模式下较低。尽管需要进一步改进,但这种推拉策略显示出操纵菜豆种植系统以改善自然害虫控制的前景。
更新日期:2020-03-01
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