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近年来在温岭县观渭童、朱村、楼旗、琛山等地300余亩的桔园中,发现野蛞蝓为害柑桔嫩叶、嫩芽,经济损失约达36000多元。我们对野蛞蝓的发生规律及防治方法作了初步的探讨。 发生规律 一年发生一代,以成体或幼体在作物根部土中越冬,遇冬暖时仍能为害作物,没有明显越冬现象。次年3月后,日平均温度达到10℃以上时野蛞蝓开始大量活动,主要食害植物的嫩叶。
In recent years in Wenling County, weiguo, Zhucun, Louqi, Chen Shan and other places more than 300 acres of orange orchard, found that wild 蛞 蝓 damage citrus leaves, tender buds, the economic losses of about 36,000 yuan. We made a preliminary discussion on the law of occurrence and prevention and cure of wild flies. Occurrence occurs a generation a year to adult or larvae in the soil overwinter in the roots of crops, in case of winter warm crops can still be harmful, there is no obvious wintering phenomenon. The following year in March, when the average daily temperature reaches above 10 ℃ wild 蛞 蝓 began a large number of activities, the main plant damage to young leaves.