Species displacements are common to two invasive species of leafminer fly in China, Japan, and the United States

Yulin Gao, Zhongren Lei, Yoshihisa Abe, Stuart R. Reitz

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Under field conditions, species displacements have occurred in different directions between the same invasive species of leafminers (Diptera: Agromyzidae). Liriomyza sativae (Blanchard) was displaced by L. trifolii (Burgess) in the western United States, with evidence suggesting that lower insecticide susceptibility of L. trifolii is a factor. However, in Japan, the opposite has occurred, as L. trifolii was recently displaced by L. sativae. This displacement is probably because of the higher fecundity of L. sativae and differential effects of parasitoids on the two leafminer species. Here, we carried out long-term surveys of these same two invasive leafminer species during January through March in 1999,2007, and 2011, as well as June through July in 2011, in eight locations (Sanya, Dongfang, Haikou, Leidong, Lingshui, Wuzhisan, Qionghai, and Danzhou) across Hainan Island of southern China. Our results indicate that, between 2007 and 2011, L. trifolii rapidly replaced L. sativae as the predominant leafminer of vegetables on Hainan Island, similar to the situation in the western United States. Further surveys of growers revealed that avermectins and cyromazine are the two most frequently used insecticides against leafminers on Hainan Island. Dose-mortality tests showed that L. trifolii populations from Hainan Island are less susceptible to avermectins and cyromazine compared with L. sativae populations. This lower insecticide susceptibility of L. trifolii may be associated with the displacement of L. sativae by L. trifolii, although additional ecological or environmental factors cannot be ruled out.

Original languageEnglish
Pages (from-to)1771-1773
Number of pages3
JournalJournal of Economic Entomology
Volume104
Issue number6
DOIs
Publication statusPublished - Dec 1 2011

Fingerprint

Liriomyza sativae
leafminer
leafminers
competitive exclusion
invasive species
Japan
China
insecticide
cyromazine
Liriomyza trifolii
avermectins
insecticide resistance
Western United States
Agromyzidae
vegetable
fecundity
environmental factor
parasitoids
mortality
growers

All Science Journal Classification (ASJC) codes

  • Ecology
  • Insect Science

Cite this

Species displacements are common to two invasive species of leafminer fly in China, Japan, and the United States. / Gao, Yulin; Lei, Zhongren; Abe, Yoshihisa; Reitz, Stuart R.

In: Journal of Economic Entomology, Vol. 104, No. 6, 01.12.2011, p. 1771-1773.

Research output: Contribution to journalArticle

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