Effectiveness of pheromone traps for monitoring Zeuzera sp. (Lepidoptera: Cossidae) population on Eucalyptus pellita plantation

Abstract

Zeuzera sp. (Lepidoptera: Cossidae) is a group of moths which the larvae is drilling holes into the stems and branches of tree. This study was conducted to record the population dynamic of Zeuzera sp. and to control the pest in Eucalyptus pellita plantation. The first damage of Zeuzera sp. was detected in 2017 at the E. pellita plantation block 4 (1 clone) owned by PT Korintiga Hutani in Central Kalimantan. It was found in 2 clones of block 5 in 2018, as well as in 3 clones of block 6 in 2019, and the tendency of the damage appeared widespread. The damage caused the broken top crown, swolen stem, and frass around the bottom part of the plant. Primary observation showed that there were several species of Zeuzera. The pest control was carried out by installing of delta trap + pheromone of Zeuzera pyrina. This pheromone trap was installed in 40 severely damaged locations. Each location had 1 trap installed. The results of monitoring with delta trap + pheromone showed that only 1 species of Zeuzera was found to be attracted by the pheromone. The density of captured adult varied depended on the clones and time of installation. The number of adult captured in May to July 2019 was 911. In conclusion, Zeuzera sp. damage in E. pellita plantation was gradually increased, and integrated pest management (silviculture, mechanical, biological, chemical) was required to prevent the damage.