Occurrence of Bagworm and Nettle Caterpillar with its Natural Enemies in Oil Palm Plantation Planted with Turnera ulmifolia

Dennera Leyeanie, Hilary (2022) Occurrence of Bagworm and Nettle Caterpillar with its Natural Enemies in Oil Palm Plantation Planted with Turnera ulmifolia. [Final Year Project Report] (Unpublished)

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Abstract

A study entitled occurrence of bagworm and nettle caterpillar with its natural enemies in oil palm plantation planted with Turnera ulmifolia L. was carried out in Felcra Samarahan Jaya Oil Palm Plantation in Kota Samarahan, Sarawak. The main objective of this study was to evaluate the effect of T. ulmifolia on the population of bagworm and nettle caterpillar and its natural enemies in oil palm plantations. Results of the study showed that there was significant difference in the number of alive bagworms between plot T0 (Without T. ulmifolia) and T1 (With T. ulmifolia). The mortality of bagworm was more significant in area T1 compared to T0. The results of this study also revealed that the presence of natural enemies was effective in controlling number of bagworms. The most common bagworm species recorded from this study were Pteroma pendula Joannis and Metisa plana Walker. Other defoliate insect found in the oil palm plantation from this study was nettle caterpillar which were Susica sp., unknown species and Birthosea sp, and Darna sp. Based on the finding of this study, planting beneficial plant, T. ulmifolia give good result in controlling defoliate insect; bagworm and nettle caterpillar and enhance the occurrence of its natural enemies.

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