论文部分内容阅读
红萍的周年养用,在很大程度上受萍虫-萍摇蚊、萍螟、萍灰螟的危害影响很大,特别是萍摇蚊的威胁,已成为近年来大面积发展红萍生产的主要障碍.为了有效地防治萍摇蚊的为害,促进红萍生产的发展,从1975年开始,我们与有关部门共同协作,对萍摇蚊的发生种类、危害性、虫态特征,特别是对主要危害种类——二带萍摇蚊(暂定名)的生物学特性及其防治进行了初步观察和研究,现将观察研究结果初报如下.一、萍摇蚊种类、形态特征及其对红萍的危害性
Hongping annual use, to a large extent by the Pingchu - Pingchus mosquito, Ping borer, Ping dust borer great impact, especially the threat of Pingchuan mosquito has become a large area in recent years the development of Hongping In order to effectively prevent and control Phytophthora parasitica mosquito harm and promote the development of Hongping production since 1975, we work together with the relevant departments, the occurrence of Pingchu mosquito species, harmfulness, the characteristics of the insect state, in particular, The main types of hazards - the second Pingchu mosquito (tentative name) biological characteristics and its prevention and control of a preliminary observation and research, the results of the observations are as follows: First, the species and morphological characteristics of Chingchipia moschata Harmful to Hongping