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福寿螺危害近年日益加重。2006年广西全区发生面积达16.7万hm2,玉林市超过3.3万hm2,对水稻等作物生产构成了较大威胁。为了筛选到有效的
Loxodon injury has been aggravating in recent years. In 2006, an area of 167,000 hm2 in Guangxi occurred and an area of more than 33,000 hm2 in Yulin City posed a great threat to the production of rice and other crops. In order to screen effective