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近年农田套种一季经济作物西瓜面积较大,既解决了剩余劳动力问题,又增加了经济收入。但是由于不能大面积连片种植,在自己的责任田内小块或小片插花种植,西瓜成熟阶段又处在农田害鼠贫食时期,西瓜田成了农田害鼠群集危害的对象田。1986年未化防前大面积取样调查,西瓜平均鼠害造成烂瓜达30％,农科所种植的20余亩西瓜,因鼠害造成烂瓜均在50％以上,亩产仅400-500公斤,全县西瓜产量和农户经济收入由鼠危害损失甚大。
In recent years, the intercropping of farmland with seasonal crops of watermelon has a larger area, which not only solves the problem of surplus labor but also increases economic income. However, due to the lack of contiguous plantings, small or small plots of flowers are planted in their own responsibility, and the ripening stage of watermelon is again at the stage of poor pest feeding in farmland. In 1986, a large area of unprepared sampling was investigated. The average watermelon caused 30% of rotten vegetables and 20 acres of watermelon planted by agricultural sciences were caused by rotting mice with over 50% of rotten melons and only 400-500 mu per mu Kg, the county watermelon output and farmer economic income loss by the rat harm.