文献类型：期刊文献

英文题名：A parasitic wasp-releasing engineering to promote ecosystem services in paddy systems

作者：Zhang, Hao[1];You, Chun-Mei[1];Wang, Jin-Yan[1];Woodcock, Ben A.[3];Chen, Yi-Juan[1];Ji, Xiang-Yun[1];Wan, Nian-Feng[2]

机构：[1]Shanghai Acad Agr Sci, Ecoenvironm Protect Inst, Shanghai Key Lab Protected Hort Technol, Key Lab Low Carbon Green Agr Southeastern China,Mi, Shanghai 201403, Peoples R China;[2]East China Univ Sci & Technol, Sch Pharm, Shanghai Key Lab Chem Biol, Shanghai 200237, Peoples R China;[3]UK Ctr Ecol & Hydrol, Wallingford OX10 8BB, England

年份：2024

卷号：373

外文期刊名：AGRICULTURE ECOSYSTEMS & ENVIRONMENT

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001258564900001)】；

基金：We thank all the members of the Ecological Control of Pests Laboratory of Shanghai Academy of Agriculture Science for their advice and assistance. This work was supported by the Shanghai Agriculture Applied Technology Development Program, China (2022-02-08-00-12- F01160) , Shanghai Academy of Agriculture Science Program for Excellent Research Team (2022-017) , and National Ten Thousand Plan-Young Top Talents of China. BAW is supported by NERC NE/W005050/1 (AgZero +) .

语种：英文

外文关键词：Ecological engineering; Biocontrol services; Chilo suppressalis; Cnaphalocrocis medinalis; Trichogramma japonicum; Wasp releasing

摘要：In East Asia, rice is a key crop that is subject to significant insect driven crop damage often leading to wide scale reliance on insecticides. We assessed the effects of releasing conditions (including density, frequency and distribution points) of a parastic wasp (i.e., Trichogramma japonicum ) on the control efficacy it provided against two rice pest herbivores (i.e., Chilo suppressalis and Cnaphalocrocis medinalis ). Optimal control was achieved by three releases of 150,000 wasps per hectare across 75 release points within a hectare rice field. A following 2-year large-scale field experiment demonstrated that the release of parasitic wasps allowed a 60.0 % reduction in insecticide use when compared to the insecticide treatment alone. Importantly, there was also a 3.7 % increase in pest control, 2.5 % increase in rice yield, and an overall 4.5 % increase in net economic benefit when the release of parasitic wasps was combined with insecticide application. This was an improvement on the use of either parasitic wasps alone or insecticide application alone. Release of parasitic wasps had co-benefits for other invertebrate predators whose abundance was increased by 65.8 % relative to the insecticide only treatment, however, this fell to a 26.4 % increase when parasitic wasps release was combined with insecticide use. Additionally, the combined treatment group of parasitic wasps and insecticides exhibited the highest net economic benefit (40488.9 +/- 593.2 Chinese Yuan (CNY) ha -1 ), significantly surpassing both the parasitic wasps-only treatment by 8.9 % and the treatment of no parasitic wasps and no insecticide by 21.8 %. These findings suggest that parasitic wasps releasing is a feasible approach to ecological engineering to promote multiple ecosystem services linked to greater crop yield in agroecosystems.