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Ecological Engineering
Vol. 90, 2016, Pages: 427–430

Ecological engineering of trap cropping promotes biocontrol services in peach orchard ecosystems

Nian-Feng Wan, Yi-Ming Zhang, Kai-Hua Huang, Xiang-Yun Ji, Jie-Xian Jiang

Eco-environment Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai Key Laboratory of Protected Horticultural Technology, Shanghai 201403, China.

Abstract

We conducted a 2-year field experiment in eastern China examining the effects of two trap crops (sunflower, Helianthus annuus and corn, Zea mays) on the biocontrol services in peach orchard ecosystems. We found that compared to levels in control areas without any trap crops, the abundance of Conogethes punctiferalis population in tree canopies in peach orchards with trap crop sunflowers and with trap crop corns decreased by 39.4 and 47.3% in 2010 and by 48.1 and 57.5% in 2011, respectively. Substantial number ofCpunctiferalis population was found in the trap crop samples. In sunflowers we found 23.3 ± 4.4 per flower head in 2010 and 21.3 ± 4.0 in 2011. In the corn trap crop, counts ofCpunctiferalis population were made per ear and per stalk, there were 96.0 ± 25.9 individuals per 20 ears in 2010 and 88.9 ± 23.2 in 2011, and there were 44.2 ± 7.1 individuals per 20 stalks in 2010 and 40.3 ± 6.3 in 2011. We conclude that the trap crops can be used to promote biocontrol services in peach orchard ecosystems.

Keywords: Biocontrol services; Conogethes punctiferalis (Guenée); Ecological engineering; Helianthus annuus; Peach orchard ecosystems; Zea mays.

 
 
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