III. Surveillance, pest outbreaks and invasive species management Last updated: April 2011 Executive summary The Rural Development Administration (RDA) monitored and observed the pest outbreaks and invasive species. Total 690 observation stations located in 137 cities and counties have been operational. Two species of insect, a katydid Paratlanticus ussuriensis and a cicada Lycorma delicatula, broke out both in 2007 and 2008. And an invasive disease, TYLCV, also broke out in a limited area and it was under official control. Provincial governments, the RDA and the KFS collaborated to manage these pests and disease employing all sorts of methods currently in use. They also tried to develop an effective strategy. In 2007 a rice pest, smaller brown planthopper Laodelphax striatellus, occurred in extraordinarily high population causing severe damage in areas in the vicinity of the western coast because of the rice stripe virus disease it transmitted. In 2008 the disease incidence decreased greatly in comparison to that of 2007, even though it was still severe showing 205% occurrence compared to the average year.

Key situation indicators (Outbreaks and invasions in the past 2 years)

Eradication or internal quarantine actions taken against economically important species

Pest outbreak actions