Correspondence:
Jichao Fang and Rui Ji, Institute of Plant Protection, Jiangsu Academy
of Agricultural Sciences, Jiangsu Key Laboratory for Food and
Safety-State Key Laboratory Cultivation Base of Ministry of Science and
Technology, 210014 Nanjing, China.
Email: fangjc@jaas.ac.cn (J. F.) and jirui@jaas.ac.cn (R. J.).