In general an aphid cannot or hardly identify its host at a distance.
在一定距离以外，蚜虫通常不能或难以识别其寄主植物。
Proposals on further research to plant killing aphid are put forward.
并对杀蚜植物进一步研究应注意的问题提出了建议。
The aphid possess positive taxis to golden and negative taxis to silver grey.
蚜虫对金黄色具有正趋性，对银灰色具有负趋性。
The aphid possess positive taxis to golden and negative taxis to silver grey.
蚜虫对金黄色具有正趋性，对银灰色具有负趋性。
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