Outbreaks of Bagworms and their Natural Enemies in an Oil Palm, Elaeis Guineensis, Plantation at Hutan Melintang, Perak, Malaysia

CHEONG, YEW LOONG; Sajap, Ahmad Said; Noor, Hafidzi Mohd; Omar, Dzolkifli; Abood, Faizah

doi:10.3923/je.2010.141.151

Cited by 41 publications

(42 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…(a) Biocontrol Oil palm pests tend to be native species that have transferred to the introduced oil palm monocultures [73]. Although there is a wide range of economically important pest taxa, the most prominent are lepidopteran insect defoliators, principally bagworms (Psychidae) and nettle caterpillars (Limacodidae) [69,[74][75][76]. Historically, general control methods such as blanket spraying were used in an attempt to prevent outbreaks, but it became the consensus that this spraying affected the natural enemy populations of the oil palm pests [69].…”

Section: Consequences Of Biodiversity Loss For Ecosystem Functioning mentioning

confidence: 99%

“…However, total reliance on a single species is in principle risky [72], and there are specific concerns emerging about the effectiveness of the weevil. The weevil is relatively ineffective as a pollinator in dry conditions and in heavy rain [82]; there can be high levels of attack by parasitic nematodes, which can greatly reduce the fitness of the weevil [83]; and there may be high levels of inbreeding depression [74].…”

Section: Consequences Of Biodiversity Loss For Ecosystem Functioning mentioning

confidence: 99%

See 1 more Smart Citation

Establishing the evidence base for maintaining biodiversity and ecosystem function in the oil palm landscapes of South East Asia

Foster

Snaddon

Turner

et al. 2011

Phil. Trans. R. Soc. B

254

261

View full text Add to dashboard Cite

The conversion of natural forest to oil palm plantation is a major current threat to the conservation of biodiversity in South East Asia. Most animal taxa decrease in both species richness and abundance on conversion of forest to oil palm, and there is usually a severe loss of forest species. The extent of loss varies significantly across both different taxa and different microhabitats within the oil palm habitat. The principal driver of this loss in diversity is probably the biological and physical simplification of the habitat, but there is little direct evidence for this. The conservation of forest species requires the preservation of large reserves of intact forest, but we must not lose sight of the importance of conserving biodiversity and ecosystem processes within the oil palm habitat itself. We urgently need to carry out research that will establish whether maintaining diversity supports economically and ecologically important processes. There is some evidence that both landscape and local complexity can have positive impacts on biodiversity in the oil palm habitat. By intelligent manipulation of habitat complexity, it could be possible to enhance not only the number of species that can live in oil palm plantations but also their contribution to the healthy functioning of this exceptionally important and widespread landscape.

show abstract

Section: Consequences Of Biodiversity Loss For Ecosystem Functioning mentioning

confidence: 99%

Section: Consequences Of Biodiversity Loss For Ecosystem Functioning mentioning

confidence: 99%

Establishing the evidence base for maintaining biodiversity and ecosystem function in the oil palm landscapes of South East Asia

Foster

Snaddon

Turner

et al. 2011

Phil. Trans. R. Soc. B

254

261

View full text Add to dashboard Cite

show abstract

“…Three days prior to treatment, the pooled average census indicated M. plana infestation significantly reduced from 51.3 (G1 2013, G2 2013 and G3 2014) at an oil palm plantation in Slim River, Perak. mortality on bagworms and naturally controlling the bagworm population in oil palm plantation (Cheong et al, 2010). From a study, conducted by the Palm Oil Research Institute of Malaysia (PORIM) in 1989 on the population of M. plana at PORIM Kluang, Johor, Malaysia mortality for each instar caused by natural enemies from the first to the seventh instars were I=4.9%, II=16.7%, III=65.6%, IV=87.5%, V=79.6%, VI=67.4% and VII=51.2%, respectively (Basri, 1993).…”

Section: Resultsmentioning

confidence: 99%

“…When the larval population is at the early instar stages (first to fourth larval instars) and the number is above the threshold level (5-10 larvae per frond) (Wood, 2002), control measures should start immediately. If more than 70% of the population are at the late instars (fifth to seventh larval instars) or pupal stages, the aerial spray using Bt must be postponed (Basri, 1993;Ramlah et al, 2007a,b). The aerial spray would be carried out on the next generation of M. plana once the early larval stages emerge.…”

Section: Bagworms Censusmentioning

confidence: 99%

See 1 more Smart Citation

CONTROLLING Metisa plana Walker (Lepidoptera: Psychidae) OUTBREAK USING Bacillus thuringiensis AT AN OIL PALM PLANTATION IN SLIM RIVER, PERAK, MALAYSIA

Kamarudin¹,

Ali²,

Masri³

et al. 2017

JOPR

View full text Add to dashboard Cite

show abstract

Maintaining understory vegetation in oil palm plantations supports higher assassin bug numbers

Stone,

Advento,

Pashkevich

et al. 2023

Ecol Sol and Evidence

View full text Add to dashboard Cite

The expansion of oil palm agriculture across Southeast Asia has caused significant biodiversity losses, with the reduction in habitat heterogeneity that accompanies the conversion of forest to oil palm being a major contributing factor. However, owing to their long commercial lifespan, oil palm plantations can support relatively high levels of vegetation complexity compared to annual crops. There is therefore potential for the implementation of management strategies to increase vegetation complexity and associated within‐plantation habitat heterogeneity, enhancing species richness and associated ecosystem functioning within productive oil palm landscapes. This study focusses on two species of asassin bugs Cosmolestes picticeps and Sycanus dichotomus, which are important agents of pest control within oil palm systems. Using a Before‐After Control‐Impact experimental manipulation in Sumatra, Indonesia, we tested the effect of three alternative herbicide spraying regimes and associated vegetation complexity treatments on assassin bug numbers. Our treatments encompass a range of current understory vegetation management practices used in oil palm plantations and include removing vegetation only in areas key to harvesting (“Normal”), removing all understory vegetation (“Reduced”), and allowing native vegetation to regrow naturally (“Enhanced”). We assessed both the long‐term (18 months) and short‐term (within 2 weeks) effects of our treatments following herbicide spraying. Pre‐treatment, we found high numbers of assassin bugs of both species in all plots. Long‐term post‐treatment, the abundance of both C. picticeps and S. dichotomus declined in reduced understory plots, although this decline was only significant for C. picticeps (98%). In contrast, there were no significant differences in the post‐treatment abundance of either species in the short‐term. These results suggest that the long‐term decline in assassin bug abundance was likely to be caused by loss of vegetation, rather than any immediate effects of the herbicide spraying. Our findings have clear management implications as they demonstrate that maintaining vegetation in oil palm understories can benefit an important pest control agent.

show abstract

Outbreaks of Bagworms and their Natural Enemies in an Oil Palm, Elaeis Guineensis, Plantation at Hutan Melintang, Perak, Malaysia

Cited by 41 publications

References 5 publications

Establishing the evidence base for maintaining biodiversity and ecosystem function in the oil palm landscapes of South East Asia

Establishing the evidence base for maintaining biodiversity and ecosystem function in the oil palm landscapes of South East Asia

CONTROLLING Metisa plana Walker (Lepidoptera: Psychidae) OUTBREAK USING Bacillus thuringiensis AT AN OIL PALM PLANTATION IN SLIM RIVER, PERAK, MALAYSIA

Maintaining understory vegetation in oil palm plantations supports higher assassin bug numbers

Contact Info

Product

Resources

About