白背飞虱在早稻中有迁入早、虫口上升快、数量大 ，在水稻前、中期为害严重等特点。

White-backed planthopper has the characterizes of early migrating, quick rising number and severe demage at earlier and middle stages of early season rice.

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8年前的一个调查，美国华南商会发现75%的成员主要把销路集中在出口上。

In a survey eight years ago, the American Chamber of Commerce in South China found that 75% of its members were focused mainly on export markets.

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