豇豆上三叶草斑潜蝇与美洲斑潜蝇种群分布调查研究

摘要

Liriomyza trifolii Burgess and L. sativae Blanchard are two important vegetable leafminers in Hainan province. The investigation of population distribution of L. trifolii and L. sativae showed that the population of L. trifolii is over 97%, and L. trifolii is the predominant species of cowpea. The percentage of L. trifolii population reached 71.30%, the growth of cowpea space range is above 80 cm. The percentage of L. sativae population reached 61.29% between 40 and 80 cm. The cowpea spatial niche of two leafminer species are different because of the interspecific competition.%三叶草斑潜蝇(Liriomyza trifolii Burgess)和美洲斑潜蝇(Liriomyza sativae Blanchard)是海南地区发生和危害比较严重的2种蔬菜潜叶蝇，通过对两种斑潜蝇在豇豆上的种群分布调查研究表明：三叶草斑潜蝇在豇豆上的种群数量达到了97%以上，已上升为豇豆上斑潜蝇的优势种；三叶草斑潜蝇主要集中在80 cm以上的空间，种群百分比达到了71.30%，美洲斑潜蝇主要集中在40～120 cm的空间，种群百分比为61.29%。种间竞争使得两种斑潜蝇在豇豆上空间生态位分布产生差异。