Oil palm (Elaeis guinensis) plantation is one of the economic pillars of countries rich in biodiversity in tropical regions. In oil palm plantation, pests and diseases are the major problems  that cause low production in oil palm. Bagworm, Metisa plana (Lepidoptera: Psychidae) are the most  destructive pest in oil palm plantations in Malaysia, resulting in high yield losses of up to 43%  over two years after infestation. Therefore, this study was  aimed  to  examine  bagworm   infestations,  their  damaging  impacts  based  on bagworm stages, and the damages occurred in the  oil palm plantations in Felda Gunung Besout  2.  A  total  of  57  palm  trees  were   systematically  selected,  and  bagworm  and parasitoid  samples  were  collected  from  several   selected  areas  in  two  stages.  At  first stage, nine (9) fronds were randomly picked from each  tree. The severity of bagworm infestations was measured based on the severity sc.....

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Oil palm (Elaeis guineensis) planting is one of the economic pillars of countries rich in biodiversity in tropical regions. However, pest and disease are the most serious limitation of oil palm production. Bagworm, Metisa plana (Lepidoptera: Psychidae) is considered the most destructive pest in the oil palm plantation in Malaysia, which could cause high yield losses up to 43% over two years after a serious infestation and become a primary concern among stakeholders. Conventional excessive use of pesticides causes serious environmental pollutions and damage to non-target organisms. Thus, biological control can be reduced the pest populations safely and efficiently by beneficial insects such as parasitoids. This study aims to (i) evaluate the bagworm infestation in an oil palm plantation, Perak, Malaysia; (ii) determine the impact and damage of the bagworm stages on the oil palm plantation, and (iii) evaluate the parasitoid in such areas. A total of 57 palm trees have been systematically.....

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