Beyond four decades of Elaeidobius kamerunicus Faust (Coleoptera: Curculionidae) in the Malaysian oil palm industry: a review

2021 ◽  
pp. 1-11
Author(s):  
Muhamad Haziq Hadif Zulkefli ◽  
Syari Jamian ◽  
Nur Azura Adam ◽  
Johari Jalinas ◽  
Saharul Abillah Mohamad ◽  
...  
Keyword(s):  
Oil Palm ◽  
Elaeis Guineensis ◽  
Palm Fruit ◽  
The Sustainable Development ◽  
Agriculture Sector ◽  
Current State ◽  
Development Goals ◽  
Oil Palm Industry ◽  
Elaeidobius Kamerunicus

Abstract Oil palm (Elaeis guineensis Jacq) is an economically important crop in South-east Asia, especially in Malaysia and Indonesia. In Malaysia, oil palm is the most profitable commodity in the agriculture sector. The future of oil palm lies in obtaining a higher yield that is aligned and directed towards achieving the Sustainable Development Goals (SDG) by 2030. Elaeidobius kamerunicus was introduced into Malaysia during the late 1980s to boost the production of oil palm fruit bunches. Almost 40 years since the introduction of E. kamerunicus, significant improvements have been witnessed in the increase of oil palm yield. Nevertheless, the current concern in the oil palm sector is regarding the decreasing of fruit set that may be affected by E. kamerunicus. The weevil population plays a crucial factor in the pollination of oil palm. Several factors had been reported to reduce the weevil population such as natural enemies, interaction with local insects, pesticides, climate and male inflorescence. These factors have been addressed in this article based on various studies conducted since the first investigation in Cameroon by Syed in 1977. The role of the pollinator in terms of its biology, behaviour and pollination mechanism is also described in this article, together with the population management of the weevils. This review article will provide a summary of the current state of Elaeidobius kamerunicus in Malaysia and other neighbouring oil palm-producing countries.

scholarly journals THE INSECTICIDE EFFECT TO THE ACTIVITY AND EMERGENCE OF Elaeidobius kamerunicus FAUST (COLEOPTERA: CURCULIONIDAE) ON OIL PALM (Elaeis guineensis Jacq.) MALE INFLORESCENCE

2019 ◽  
Vol 27 (1) ◽  
pp. 13-24
Author(s):  
Agus Eko Prasetyo ◽  
Agus Susanto
Keyword(s):  
Oil Palm ◽  
Elaeis Guineensis ◽  
Male Flower ◽  
Breeding Site ◽  
Palm Fruit ◽  
Male Inflorescence ◽  
Before And After ◽  
Different Levels ◽  
Elaeidobius Kamerunicus

Elaeidobius kamerunicus is the main pollinating insect in oil palm plantations in Indonesia which influences the oil palm fruit set. Theoil palm (Elaeis guineensis) male inflorescence is the only one of their breeding site. The application of insecticides, especially those directly to the male inflorescence, can affect the activity and breeding of pollinator insects. Various insecticides include Deltamethrin (2 mL/L), Lamda Sihalotrin (2 mL/L), Dimehipo (2 mL/L), Asefat (1.5 g/L), Fipronil (2.5 mL/L), Chlorantraniliprol (1 mL/L), Flubendiamide (0.5 mL/L) and B. Thuringiensis (2 mL/L) have been tested on E. kamerunicus weevils by in vivo trial and on anthesising male inflorescence at different levels of bloom (25 %, 50%, 75% and 100%) in the field. The weevils mortality observations were carried out for 5 days after the insecticides application in the laboratory while observations in the field included the number of weevils visit before and after insecticide application until the end of the male flower anthesis and the number of new emerged weevil in each spikelet after 21 days of incubation. The results showed that the chemical insecticides i.e. Deltametrin, Lamda Sihalotrin, Dimehipo, Asefat, and Fipronil were killed the weevil, affecting the weevil visit on anthesising male inflorescence 1-3 days later, and decreasing the number of new emerged weevil from each spikelet of male inflorescence after incubation for 21 days. Meanwhile, the treatment of Chlorantraniliprole and Flubendiamide and B. thuringiensis did not affect the development of E. kamerunicus both in the laboratory and in the field so that they were safe for oil palm pollinating naturally.

The DEVELOPMENT OF Elaeidobius kamerunicus FAUST POPULATION AFTER INTRODUCTION AND THE IMPROVEMENT OF OIL PALM FRUIT SET IN SERAM ISLAND, MOLLUCAS, INDONESIA

2016 ◽  
Vol 24 (1) ◽  
pp. 47-55
Author(s):  
Agus Eko Prasetyo ◽  
Agus Susanto
Keyword(s):  
Sex Ratio ◽  
Oil Palm ◽  
Fruit Set ◽  
Average Risk ◽  
Palm Fruit ◽  
Male And Female ◽  
Risk Of Death ◽  
North Sumatra ◽  
Female Flowers ◽  
Elaeidobius Kamerunicus

Elaeidobius kamerunicus is the main pollinating agent in oil palm plantations in Indonesia today. The development of oil palm plantations in new areas requires introduction of these insects, moreover the new areas are located on different islands. First introduction of Elaeidobius kamerunicus Faust had been done from North Sumatra to Seram Island on 23 September 2013. The introduction was performed on larva and pupa stadium in 4-5 days post anthesising of male inflorescences. The introduction of E. kamerunicus using plywood boxes has an average risk of death by 7.89% at 6 days delivery period. Observation before releasing of the weevils showed that this insect was not detected in both of oil palm male and female flowers and the oil palm fruit set was very low approximately 11.27%. For about 500 weevils/ha were released in Marnuhu estate and could be developed into 362,401 weevils/ha in 5 months with 97.86% of oil palm sex ratio. The oil palm fruit sets were increased after 1 and 2 months introduction, 53.70% and 75.56 %, respectively. The lower sex ratio of oil palm or the more availability of male inflorescences make growth of E. kamerunicus population became faster and the greater number of weevils that visiting anthesising of female flowers make the higher value of oil palm fruit set.

OPTIMATION OF DNA EXTRACTION PROTOCOL OF Elaeidobius kamerunicus

2018 ◽  
Vol 24 (2) ◽  
pp. 77-86
Author(s):  
Sri Wening ◽  
Agus Eko Prasetyo ◽  
Tjut Ahmad Perdana Rozziansha ◽  
Agus Susanto
Keyword(s):  
Dna Fingerprinting ◽  
Dna Extraction ◽  
Oil Palm ◽  
Fruit Set ◽  
Fragment Length Polymorphism ◽  
Basic Knowledge ◽  
Biological Study ◽  
Palm Fruit ◽  
Extraction Protocol ◽  
Elaeidobius Kamerunicus

African pollination weevil (Elaeidobius kamerunicus Faust) has an important role in the productivity of Indonesian oil palm plantation. Up to now, there has not been a comprehensive biological study of the species at molecular level. The basic knowledge is very useful for exploitation of the weevil for effective oil palm fruit set development. This research aimed to obtain DNA extraction protocol of E. kamerunicus for DNA fingerprinting of the species. Results showed that using a DNA extraction kit,material disruption by using micro pestle resulted the highest quantity of DNA, while there were no significant differences of resulted DNA quantity among treatments using tissue lyser for material disruption. DNA extracted by using micro pestle or tissue lyser for material disruption is adequate for DNA fingerprinting using AFLP (Amplified Fragment Length Polymorphism) and sequencing techniques.

The DEVELOPMENT OF Elaeidobius kamerunicus FAUST POPULATION AFTER INTRODUCTION AND THE IMPROVEMENT OF OIL PALM FRUIT SET IN SERAM ISLAND, MOLLUCAS, INDONESIA

2018 ◽  
Vol 24 (1) ◽  
pp. 47-55
Author(s):  
Agus Eko Prasetyo ◽  
Agus Susanto
Keyword(s):  
Sex Ratio ◽  
Oil Palm ◽  
Fruit Set ◽  
Average Risk ◽  
Palm Fruit ◽  
Male And Female ◽  
Risk Of Death ◽  
North Sumatra ◽  
Female Flowers ◽  
Elaeidobius Kamerunicus

Elaeidobius kamerunicus is the main pollinating agent in oil palm plantations in Indonesia today. The development of oil palm plantations in new areas requires introduction of these insects, moreover the new areas are located on different islands. First introduction of Elaeidobius kamerunicus Faust had been done from North Sumatra to Seram Island on 23 September 2013. The introduction was performed on larva and pupa stadium in 4-5 days post anthesising of male inflorescences. The introduction of E. kamerunicus using plywood boxes has an average risk of death by 7.89% at 6 days delivery period. Observation before releasing of the weevils showed that this insect was not detected in both of oil palm male and female flowers and the oil palm fruit set was very low approximately 11.27%. For about 500 weevils/ha were released in Marnuhu estate and could be developed into 362,401 weevils/ha in 5 months with 97.86% of oil palm sex ratio. The oil palm fruit sets were increased after 1 and 2 months introduction, 53.70% and 75.56 %, respectively. The lower sex ratio of oil palm or the more availability of male inflorescences make growth of E. kamerunicus population became faster and the greater number of weevils that visiting anthesising of female flowers make the higher value of oil palm fruit set.

Gender Equity and the SDGs

2018 ◽  
Author(s):  
Elizabeth Dettori ◽  
Geeta Rao Gupta
Keyword(s):  
Gender Equity ◽  
Adolescent Girls ◽  
Well Being ◽  
Economic Resources ◽  
The Sustainable Development ◽  
Global Partnership ◽  
Development Goals ◽  
Gender Based ◽  
Health And Well Being

This chapter identifies some of the most stubborn gender-based risks and vulnerabilities girls face as a cohort from preadolescence through late adolescence across the domains of personal capabilities, security, safety, economic resources, and opportunities. It reviews progress made during the Millennium Development Goal era in improving girls’ health and well-being and looks to the role of adolescent girls in advancing the Sustainable Development Goals. The chapter concludes by recommending an approach for global partnership that is linked to national and local actions and that is centered on priority interventions that can catalyze change, at scale, for adolescent girls.

scholarly journals Towards Sustainable Mobility? The Influence of the COVID-19 Pandemic on Romanian Mobile Citizens in Spain

2021 ◽  
Vol 13 (7) ◽  
pp. 4023
Author(s):  
Silvia Marcu
Keyword(s):  
Sustainable Development Goals ◽  
Human Mobility ◽  
Sustainable Mobility ◽  
The Sustainable Development ◽  
New Models ◽  
Challenges And Opportunities ◽  
Development Goals ◽  
Depth Interviews

Using the case study of Romanians in Spain, this article highlights how the COVID-19 crisis presents both challenges and opportunities when it comes to human mobility and sustainability. Drawing on in-depth interviews with mobile people during the period of lockdown and circulation restrictions, and in accordance with the objectives of the Sustainable Development Goals (SDGs), the paper advances and contributes to the relevance of sustainability and its impact on people’s mobility in the context of the COVID-19 pandemic. I argue that even in the midst of the crisis, sustainable ways may be found to promote and protect human mobility. The paper raises the way sustainability acts as a driver, gains relevance and influence, and contributes to the creation of new models of resilient mobility in times of crisis. The conclusions defend the respect for the SDGs regarding human mobility and emphasise the role of people on the move as sustainable actors learning to overcome distance and the barriers to their mobility during the pandemic.

THE ROLE OF HARMONIZATION OF ACTIVITIES TO IMPROVE THE RATING OF RUSSIA IN THE INTERNATIONAL STATISTICAL COMPARISONS IN TELECOMMUNICATIONS AND ICT

2020 ◽  
Author(s):  
Н.П. РЕЗНИКОВА ◽  
Г.С. АРТЕМЬЕВА ◽  
Д.В. КАЛЮГА
Keyword(s):  
Sustainable Development ◽  
Sustainable Development Goals ◽  
International Telecommunication Union ◽  
The Sustainable Development ◽  
International Telecommunication ◽  
Development Goals ◽  
The Russian Federation ◽  
Ict Development ◽  
The Impact

Представлены основные направления для поиска путей улучшения рейтинга Российской Федерации в международных статистических сопоставлениях в сфере электросвязи/ИКТ с учетом необходимости гармонизации разнообразных направлений деятельности, связанных с оценкой влияния электросвязи/ИКТ на достижение Целей устойчивого развития, а также с появлением Нового индекса Международного союза электросвязи (МСЭ) взамен Индекса развития ИКТ(IDI). OThe main directions for finding ways to improve the rating of the Russian Federation in international statistical comparisons in the field of telecommunications/ICT are presented, taking into account the need to harmonize various activities related to assessing the impact of telecommunications/ICTs on achieving the sustainable development goals, as well as the advent of the new International Telecommunication Union Index instead of the ICT Development Index (IDI).

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