Weedy host plants of Adelphocoris spp. in the spring and the winter during 2009–2012 at Langfang, Hebei Province, China.

Sampling area refers to the combined area covered by each sampled plant species in the respective year. The information of overwinter host ranges of Adelphocoris spp. is cited from [15]. The signs “+” and “−” indicate that the associated plant species is a host plant or non-host plant, respectively. A blank space indicates that this species was not surveyed. Plant species highlighted in bold were included in the host plant surveys during the winter [15] and the spring (present study).