广州地区亚非草蛉的研究

亚非草蛉`Chrysopa boninensis`` Okamoto是果树、花木和蔬菜害虫的重要天敌。在广州地区一年完成10—11代,世代重叠。在田间没有越冬滞育现象。 本文叙述了该虫的生物学及其发生与环境的关系。释放试验结果表明,该虫控制害虫效果显著。有一定的应用价值。

STUDIES ON CHRYSOPA BONINENSIS OKAMOTO INGUANGZHOU

It is well known that Chrysopa toninensis Okamoto is an important natural enemy of many insect pests infesting fruit trees, flowers and vegetable crops. The biology of this insect was studied in Guangzhou during 1978-1981 with the aim to eluciclete its potential as an agent in biological control, It was found that it bred 10 to 11 generations a year in Guangzhou and the generations were overlapping. All the developmental stages could be found throughout the year in the field. The life cycle and behaviour as well as their relations to the environmental factors are described. The result of experiments of releasing immature stages of the laboratory-reared C. bononensis showed that this species could be used to control the pests in citrus grove and on vegetable corps.