Effective biological control of an invasive mealybug pest enhances root yield in cassava

文献类型： 外文期刊

第一作者： Wongphanuwat, T.

作者： Wongphanuwat, T.;Sangtongpraow, B.;Ngoenklan, R.;Lankaew, S.;Moonjuntha, P.;Kittipadakul, P.;Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.

作者机构：

关键词： Biological control; Biodiversity; Sustainable intensification; Food security; Ecosystem services; Natural enemies

期刊名称：JOURNAL OF PEST SCIENCE （ 影响因子：5.918； 五年影响因子：5.955 ）

ISSN： 1612-4758

年卷期： 2018 年 91 卷 4 期

页码：

收录情况： SCI

摘要： Insects provide critical ecosystem services to humanity, including biological control of pests. Particularly for invasive pests, biological control constitutes an environmentally sound and cost-effective management option. Following its 2008 invasion of Southeast Asia, biological control was implemented against the cassava mealybug Phenacoccus manihoti (Hemiptera: Pseudococcidae) through the introduction and subsequent release of the host-specific parasitoid Anagyrus lopezi (Hymenoptera: Encyrtidae) in Thailand. In this study, we quantify yield benefits of mealybug biological control in Thailand's cassava crop by using two different types of manipulative field trials: i.e., 'physical exclusion' cage trials and field-level 'chemical exclusion' assays. In cage trials with two popular cassava varieties, root yield and total dry matter (or 'biological yield') were a respective 4.0-4.2 times and 3.5-3.9 times higher in the presence of biological control. Extrapolating results from cage trials, biological control thus ensured an approximate yield gain of 5.3-10.0 T/ha for either variety. Under chemical exclusion trials, P. manihoti populations attained levels of 3266 +/- 1021 cumulative mealybug-days (CMD) over a 10-month time period, and no longer impact yields. Moreover, under effective P. manihoti control, both root yield and biological yield increased with season-long CMD measures, and pest management interventions-including insecticide sprays-led to notable reductions in yield. This study is the first to show how biological control effectively downgrades the globally invasive P. manihoti to non-economic status and restores yields in Thailand's cassava crop. Our work emphasizes the economic value of biological control, reveals how current P. manihoti populations do not necessarily cause yield penalties, and underlines the central importance of nature-based approaches in intensifying global agricultural production.

分类号：

  • 相关文献
作者其他论文 更多>>
  • Context-dependent response of crop pests to landscape composition

    作者：Yang, Long;Pan, Yunfei;Wyckhuys, Kris A. G.;Li, Minlong;Wang, Kaitao;Liu, Bing;Liu, Yangtian;Jia, Shuangshuang;Li, Qian;Li, Yan;Lu, Yanhui;Wyckhuys, Kris A. G.;Desneux, Nicolas

    关键词：Agroecology; context dependency; ecological based pest management; ecological intensification; host quality

  • Biological control mitigates spread of vector-borne plant pathogens

    作者：Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.;Xu, Pengjun;Lu, Yanhui;Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.;Elkahky, Maged;Zou, Yi;Crowder, David W.;Adriani, Evie;Albaytar, Annabelle B.;Cruz, Filomena C. Sta.;Beltran, Marie Joy B.;Signabon, Freddiewebb B.;Ben Fekih, Ibtissem;Francis, Frederic;Camargo-Gil, Carolina;Cicero, Lizette;Colmenarez, Yelitza C.;Cuellar-Palacios, Claudia M.;Montoya-Lerma, James;Dubois, Thomas;Khamis, Fathiya M.;Eigenbrode, Sanford D.;Fereres, Alberto;Haddi, Khalid;Le Lann, Cecile;Roudine, Sacha;van Baaren, Joan;Le Ralec, Anne;Lopez, Lorena;Lyu, Baoqian;Munoz-Cardenas, Karen;Nurkomar, Ihsan;Palmeros-Suarez, Paola A.;Perier, Jermaine D.;Ramirez-Romero, Ricardo;Sanches, Marcio M.;Sanchez-Garcia, Francisco J.;Vasquez, Carlos

    关键词：Disease ecology; Vector-borne pathogens; Agroecology; Interdisciplinarity; Biological control agent-vector-virus; interactions

  • Orchard systems offer low-hanging fruit for low-carbon, biodiversity-friendly farming

    作者：Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.;Abram, Paul K.;Barrios, Edmundo;Elkahky, Maged;Cancino, Jorge;Collatz, Jana;Fancelli, Marilene;Pinto, Maria;Klein, Alexandra-Maria;Lindell, Catherine A.;Lindell, Catherine A.;Lindell, Catherine A.;Lindell, Catherine A.;Tang, Fiona H. M.;Tena, Alejandro

    关键词：ecological intensification; agroecology; One Health; biological control; pesticide pollution

  • Biological control protects carbon sequestration capacity of plantation forests

    作者：Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.;Giron, E.;Hyman, G.;Rubiano, M.;Castro-Llanos, F. A.;Verchot, L.;Sheil, D.;Sheil, D.;Yu, L.;Yu, L.;Yu, L.;Du, Z.;Hurley, B. P.;Slippers, B.;Germishuizen, I.;Bojaca, C. R.;Wyckhuys, Kris A. G.;Sathyapala, S.;Zhang, W.

    关键词：biocontrol; climate change; invasion biology; plantation forestry; restoration ecology

  • Elucidating the dynamic impacts of double cropping rice on arthropod pests and natural enemies in single cropping rice

    作者：Gong, Shanxing;Shi, Xiaoyu;Zou, Yi;Gong, Shanxing;Chong, Hainan;Xiao, Haijun;Chong, Hainan;Xiao, Haijun;Shi, Xiaoyu;Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.

    关键词：agricultural management; biological control; predator; semi-natural habitat; source-sink; ecological intensification

  • Transboundary impacts of pesticide use in food production

    作者：Tang, Fiona H. M.;Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.;Li, Zijian;Maggi, Federico;Silva, Vera

    关键词：

  • Salinity stress alters plant-mediated interactions between above- and below-ground herbivores

    作者：Zhang, Qian;Wyckhuys, Kris A. G.;Lu, Yanhui;Wang, Qiongqiong;Jin, Shuangxia;Wang, Qiongqiong;Wyckhuys, Kris A. G.;Wyckhuys, Kris A. G.

    关键词：Abiotic stress; Biotic stress; Systemically acquired resistance; Insect fitness; Plant metabolites

微信小程序