近几年来,螯虾(当地俗称龙虾)在我区大量繁殖增长,已发展成为对莲藕生长和生产危害最大的敌害。由于水中大量螯虾的存在,藕塘中刚长出的幼荷就被其用第二步足剪断,使藕荷无法生长。根据我们调查及藕农反映的情况,我们场所有的藕塘都遭到不同程度的危害,有的藕塘几乎成了 In recent years, crawfish (commonly known as the local lobster) in our area a large number of breeding growth, has developed into a lot of harm to the growth and production of lotus root predators. As a result of the presence of a large number of water crawfish, lotus pond just out of young lotus was cut with the second step enough to make the lotus can not grow. According to our investigation and the situation of lotus farmers, all our lotus ponds are subject to varying degrees of harm, and some lotus ponds have almost become