摘要
油菜潜叶蝇是油菜后期害虫中的优势种 ,调查发现 :4月上旬其种群数量迅速增加 ,4月中下旬为发生盛期 ,5月上旬种群数量自然下降 ;种群水平分布为聚集分布 ,而种群垂直分布呈聚集分布 ,且种群分布以疏松的小集团存在 ,其个体呈随机分布。
The spatial pattern and temporal dynamics of Phytomyza nigricornis were examined in this paper.The results showed that Phytomyza nigricornis was the predominate specie. The amount of communities increased rapidly from April 5 to April 10, main suffering occurred during the middle and late April and the amount of communities declined naturally in the early of May. The aggregated distribution pattern was loose mass community, the distribution of insects in the community was at random.
出处
《安徽农业科学》
CAS
北大核心
2005年第2期217-218,共2页
Journal of Anhui Agricultural Sciences
基金
合肥市科技局"无公害稻油生产技术研究开发"资助项目
关键词
油菜
油菜潜叶蝇
时空动态
Rape
Phytomyza nigricornis
Spatial pattern and temporal dynamics
