Effects of Media and Temperature on Population Growth of Chilodonella cyprini Relationship between the gall density of erythrina gall wasp and swelling degree of infested parts of Erythrina variegata var. orientalis 不同温度及培养液对鲤斜管虫种群密度的影响刺桐姬小蜂虫瘿密度与刺桐受害肿大程度关系