Noorhazwani Kamarudin

Malaysian Palm Oil Board | MPOB · Biological Research Division

Due to its rapid reproduction rate and brief life cycle, the most well-known oil palm pest, Metisa plana (Lepidoptera: Psychidae), also known as the bagworm, can spread to epidemic proportions. The outbreak can significantly reduce oil palm yield by resulting in 40% crop losses and 10% to 13% leaf defoliation. A manual census was conducted to count...

Bagworms, particularly Metisa plana Walker (Lepidoptera: Psychidae), are one of the most destructive leaf-eating pests, especially in oil palm plantations, causing severe defoliation which reduces yield. Due to the delayed control of the bagworm population, it was discovered to be the most widespread oil palm pest in Peninsular Malaysia. Identifica...

The outbreak of bagworm has been a severe threat, causing significant loss to the oil palm industry in Johor, Malaysia. This study investigated the impact of multiple aerial applications of Bacillus thuringiensis (Bt)-based biopesticides in controlling the bagworm outbreak at two smallholdings in Johor, namely Smallholding A (Sh.A) and Smallholding...

A serious outbreak of leaf-eating insects namely bagworm (Lepidoptera: Psychidae), especially Metisa plana species, may cause a 43% yield loss in oil palm production due to late proper control of bagworm populations. Identification of the bagworm instar stage is important to ensure proper control measures are applied in the infested area. This stud...

The red palm weevil (RPW) is a notorious phytophagous pest infesting various palm species around the world. In Malaysia, the RPW was known to cause damage on coconuts in the East Coast regions of the Peninsula and posed risks to oil palms. Thus, early detection and monitoring studies of RPW in both coconuts and oil palms by using acoustic sensors w...

This book contains 16 chapters focusing on the major arthropod, insect and nematode pests of tropical cereals, legumes, root and tuber crops, sugarcane, cotton, vegetables, bananas, citrus, oil palms, tea, cocoa and coffee and forest trees. The benefits of the integration of various control methods in the management of these arthropod, insect and n...

Aerial spraying of Bacillus thuringiensis (Bt)-based biopesticides, Ecobac-1 (EC) was carried out at an oil palm plantation in Slim River, Perak, Malaysia to control the outbreak of bagworm, Metisa plana. Close monitoring of bagworm census, precise timing and follow-up aerial spraying of Ecobac-1 (EC) were important strategies for controlling the m...

Bagworms outbreaks are a recurring problem in Malaysia. The continuous use of chemical insecticides to control bagworm outbreaks, the lack of beneficial plants in the plantation to attract natural enemies, and infestation in neighbouring plantations were reported as the contributing factors for bagworm outbreaks. Two types of simple (Vane and plast...

This paper aimed to explain the process of formulating of botanical insecticides.

A study on the impact of Bacillus thuringiensis (Bt) against the bagworm species, Metisa plana was carried out at estate in Slim River Perak. Results showed that larval population reduced from average 187.1 larvae per frond (LPF) at eight days prior to treatment to 77.6 LPF at 14 days after treatment (DAT) with 58.5% reduction after the first gener...

The outbreak of bagworm Pteroma pendula is a recurring problem in Southern Perak. Majority of the smallholders undertake uncontrolled use of pesticides, fail to establish cultivation of beneficial plants, and ignored the importance of each component of the IPM systems, hence leading to outbreaks which spread to neighbouring plantations. MPOB is edu...

The outbreak of bagworm, Pteroma pendula is a recurring problem in Southern Perak. Uncontrolled bagworm infestations and prolonged use of chemical insecticides, led to outbreaks which spread to neighbouring plantations. The aim of this study is to investigate long term effectiveness of the implementation of the IPM system using target specific indi...