Monitoring the migration of Sitobion avenae (Fabricius) by suction trapping
Author of the article:LI Ke-Bin** DU Guang-Qing** YIN Jiao ZHANG Shuai CAO Ya-Zhong***
Author's Workplace:State Key Laboratory for Biology of Plant Disease and Insect Pests, Institute of Plant Protection, Chinese Academy ofAgricultural Sciences, Beijing 100193, China
Key Words:Sitobion avenae, migration, suction trap, pest monitoring
Abstract:
[Objectives] To improve understanding of the spatio-temporal migration patterns of Sitobion avenae (Fabricius). [Methods] A new suction trap was used to monitor S. avenae in conjunction with real-time weather monitoring. [Results] The results show that there were several migration pulses of S. avenae from the wheat greening to maturing stage. These seem to concentrate to two time periods, one corresponding to immigration and the other to emigration. For example, in the Langfang area, winged S. avenae moved to this area from late April to early May (the wheat heading to flowering stage) every year and move out in late may to early June (the wheat milky stage). Early morning and dusk are the major times of migration of winged S. avenae, and migratory activity is significantly reduced during the night. The result of analysis of migratory trajectories using the HYSPLIT model showed that peak periods of abundance of winged aphids occurred much earlier in low than at high latitudes, and that peak periods in different places coincided in time. [Conclusion] Suction trap monitoring results show that S. avenae migrate from south to north in the eastern part ofChina.