累积受害率随温度下降而增大；
The rate of accumulated injury increased with the dropping of temperature.
但调查显示，不同树龄，不同地段果实受害率不同，总体上平地比坡地、16龄树比6龄树受害较轻。
Generally fruit fall rate was lower in the plain area and by the 16 years old trees than in the hill slope land and by the 6 years old trees.
南瓜果实受南亚实蝇危害程度最为严重， 2次调查的果实受害率分别为24。 32%和31。 76%。
Most serious injury was caused in the cushaw field, the injury rate being 24.32% and 31.76%, as recorded in two investigations.
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