Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

The banana skipper, Erionota torus (Hesperidae: Lepidoptera): establishment, distribution and extent of damage in Taiwan.

Abstract

Erionota torus was discovered for the first time as a pest of banana in Taiwan during September 1986. Monthly surveys indicated that within a year the hesperiid was well established and widely distributed in major banana-growing areas of southern Taiwan. The infestation rate was higher during the spring and autumn-winter seasons, ranging from <5 to >20% in different areas. An average damage pattern of 1.11 infested leaves/infested plant and 1.17 rolls/infested leaf was found. With highly significant linear correlations between banana plant and leaf infestation rates versus counts of larvae and pupae in the field, a rapid and simple measurement to determine the percentage banana plant infestation rate can be adapted for studies on the population fluctuation and the extent of damage.