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.
美洲斑潜蝇对矮生菜豆上、下部叶片的次生物质的趋性没有显著差异。
There was no significant difference of secondary substance between upper and lower leaves.
美洲斑潜蝇对矮生菜豆上、下部叶片的次生物质的趋性没有显著差异。
There was no significant difference of secondary substance between upper and lower leaves.
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