Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Thrips species (Thysanoptera: Thripidae) in winter season and their vernal activities on Jeju island, Korea.

Abstract

Vegetation sampling and sticky trapping were conducted to investigate overwintering thrips species and their vernal activities, respectively, in winter-spring seasons on Jeju island, Korea Republic, during 1994-96. In addition to Thrips palmi, which was reported overwintering on Jeju island by Lee et al. (2001), twelve thrips species belonging to the family Thripidae were found on vegetation during the winter season. Among them, eight species including economically important thrips, Frankliniella intonsa, F. occidentalis, and T. tabaci were found to overwinter on vegetation on the island. Scirtothrips dorsalis, however, is uncertain whether or not it can overwinter on vegetation. Vernal activities of thrips observed by sticky trapping were different among species. All thrips, except for T. palmi, were caught after mid April, and F. intonsa and S. dorsalis were earlier than F. occidentalis and T. tabaci.