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1988年稻瘿蚊Pachydiplosis or yzacWood-Mason在广西壮族自治区发生面积突破400万亩,遍布全区43个县(市),估计损失粮食5000万公斤。南宁地区是稻瘿蚊重发区之一,发生面积占全区的20％。
In 1988, Pachydiplosis or yzacWood-Mason broke through 4 million mu in the Guangxi Zhuang Autonomous Region, covering 43 counties (cities) in the region with an estimated loss of 50 million kilograms of grain. Nanning is one of the most common areas of rice gall midge, with an area of 20% of the whole area.