Association of host plant growth and weed occurrence with armyworm (Mythimna separata) damage in corn fields

doi:10.1016/S2095-3119(17)61857-4

Journal of Integrative Agriculture ›› 2018, Vol. 17 ›› Issue (07): 1538-1544.DOI: 10.1016/S2095-3119(17)61857-4

收稿日期:2017-06-15 出版日期:2018-07-04 发布日期:2018-07-05

Association of host plant growth and weed occurrence with armyworm (Mythimna separata) damage in corn fields

ZHANG Kun-peng^{1, 2}, YU Zhi-hao¹, JIANG Shi-xiong¹, SUN De-wen³, HUI Jun-tao⁴, ZHENG Yu-liang⁵, LI Xiao-zhen⁶, WANG Xing-yun², WU Jun-xiang¹

¹ State Key Laboratory of Crop Stress Biology in Arid Areas/College of Plant Protection, Northwest A&F University, Yangling 712100, P.R.China
² Anyang Institute of Technology, Anyang 455000, P.R.China
³ Plant Protection and Quarantine Station of Sanyuan County, Sanyuan 713800, P.R.China
⁴ Plant Protection and Quarantine Station of Lantian County, Lantian 710500, P.R.China
⁵ Plant Protection and Quarantine Station of Chang’an District, Chang’an 710100, P.R.China
⁶ Zhengping Plant Protection Technology Limited Company, Xi’an 710000, P.R.China

Received:2017-06-15 Online:2018-07-04 Published:2018-07-05
Contact: Correspondence WU Jun-xiang, E-mail: junxw@nwsuaf.edu.cn
About author:ZHANG Kun-peng, E-mail: 1095557379@qq.com
Supported by:
This work was supported by the National Public Welfare Industry (Agriculture) Scientific Research of China (201403031), the National Key Research and Development Program of China (2017YFD0201807) and the Project of Agricultural Science and Technology Innovation Transformation in Shaanxi Province, China.

摘要/Abstract

Abstract:

To clarify association between armyworm (Mythimna separata) damage level and the corn growth and weed occurrence, we investigated corn plant height, stem diameter and vigor as well as weed coverage and biomass. The investigations were conducted at three locations of Shaanxi Province, China which were suffered seriously from armyworm. Significant correlations were found between the parameters analyzed. At stunted corn growth and presence of plenty of weeds, the armyworm damage tended to be heavy; oppositely, when corn grew well and weed density were low, armyworm harm was the minimal. Therefore, corn growing status and weed density can significantly affect armyworm damage level. Our results imply that promoting corn growth and timely removal of weeds are conducive to reducing armyworm occurrence.

Key words: Mythimna separata , damage degree , corn growth , corn field weeds

. [J]. Journal of Integrative Agriculture, 2018, 17(07): 1538-1544.

ZHANG Kun-peng, YU Zhi-hao, JIANG Shi-xiong, SUN De-wen, HUI Jun-tao, ZHENG Yu-liang, LI Xiao-zhen, WANG Xing-yun, WU Jun-xiang. Association of host plant growth and weed occurrence with armyworm (Mythimna separata) damage in corn fields[J]. Journal of Integrative Agriculture, 2018, 17(07): 1538-1544.

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Association of host plant growth and weed occurrence with armyworm (Mythimna separata) damage in corn fields

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