文献类型：期刊文献

英文题名：Ground cover vegetation promotes biological control and yield in pear orchards

作者：Ji, Xiang-Yun[1];Wang, Jin-Yan[1];Dainese, Matteo[2];Zhang, Hao[1];Chen, Yi-Juan[1];Cavalieri, Andrea[3];Jiang, Jie-Xian[1];Wan, Nian-Feng[1,4]

机构：[1]East China Univ Sci & Technol, Sch Pharm, Shanghai Acad Agr Sci,Shanghai Key Lab Chem Biol, Ecoenvironm Protect Inst,Shanghai Key Lab Protect, Shanghai, Peoples R China;[2]EURAC Res, Inst Alpine Environm, Bolzano, Italy;[3]Univ Copenhagen, Dept Plant & Environm Sci, Frederiksberg, Denmark;[4]East China Univ Sci & Technol, Inst Pesticides & Pharmaceut, Shanghai, Peoples R China

年份：2022

卷号：146

期号：3

起止页码：262

外文期刊名：JOURNAL OF APPLIED ENTOMOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000731812600001)】；

基金：Shanghai Agriculture Applied Technology Development Program, China, Grant/Award Number: T2016020208; Shanghai Academy of Agricultural Sciences, Grant/Award Number: 2018[B-01] and 2022[017]; National Ten Thousand Plan-Young Top Talents of China

语种：英文

外文关键词：agricultural biodiversity; biological control; ecological intensification; ecosystem services; invertebrate herbivore; natural enemy; pesticide reduction

摘要：The use of ground cover vegetation is becoming a prominent way of promoting biodiversity and associated ecosystem services in Chinese orchards. Despite the large number of studies that have addressed the effects of ground cover vegetation on promoting natural enemy populations and related pest control, it is still unclear whether enhanced natural pest control can increase yield and reduce the use of pesticide. We performed an experiment comparing three cover vegetation practices (ryegrass, clover and hairy vetch) versus a bare ground control in commercial pear orchards in the Yangtze River Delta of East China (YRDEC), China. Natural enemy density (predator and parasitoid abundance), invertebrate herbivore performance (piercing-sucking herbivore abundance and branch-boring and fruit-boring percentage), pesticide input, and pear fruit yield were recorded. The results indicated that cover vegetation decreased herbivore abundance and boring percentage by 50% and 64%, respectively, thus decreasing pesticide use by 26%. We also found that cover vegetation increased the abundance of natural enemies by 621%, and increased pear fruit yield by 7%. Piecewise structural equation modelling confirmed that increased natural enemy densities, decreased herbivore performance by 102%, pesticide use by 51% and increased fruit yield by 10%. This study suggests that the use of ground cover vegetations, especially with clover and hairy vetch, is an effective way of promoting biocontrol services and associated ecosystem services in pear orchards.