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Analisis senyawa volatil dari ekstrak tanaman yang berpotensi sebagai atraktan parasitoid telur wereng batang coklat, Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymaridae) Wonorahardjo, Surjani; Nurindah, Nurindah; Sunarto, Dwi Adi; Sujak, Sujak; Zakia, Neena
Jurnal Entomologi Indonesia Vol 12 No 1 (2015): Maret
Publisher : Perhimpunan Entomologi Indonesia

Plants produce volatiles as communication cues intra- or inter- species. Infested plants by herbivores will produce volatiles as indirect defense mechanism that attracts natural enemies of herbivores. Analysis of volatiles compounds produced by rice plant as result of infested brown plant hopper (BPH), Nilaparvata lugens Stí¢l, was done to identify compounds in the volatiles that potentially can be used as attractant for egg parasitoids of BPH, Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymaridae). This research was an early stage to develop formulation of parasitoid attractant. The research activities include volatiles extraction of infested rice stem by BPH eggs using acetone, n-hexane as the extraction solvents; analyses of volatile compounds with GC-MS; and bioassay of parasitoid orientation behavior to the volatiles using olfactometer methods. Extraction methods applied were maceration and continuous extraction followed by concentration. Bioassay on the parasitoid orientation behavior was done by using Y-tube olfactometer and every lot of bioassay using 30 parasitoid females with 3 replicates. The results showed that the volatile compounds of extract of infested rice stem by BPH eggs comprise of 16 components. The highest proportion of the components extracted with acetone is 2-Pentanone, 4-hydroxy-4-methyl (19,9%), while those with n-hexane is Hexanedioic acid, dioctyl ester (65%). A. nilaparvatae showed positive response to the volatiles extracted from infested rice plant by N. lugens eggs. Therefore, the volatiles can be used as an attractant for the egg A. nilaparvatae to support rice pest management.

Catatan baru hama penting, Frankliniella intonsa (Trybom) (Thysanoptera: Thripidae) pada tanaman stroberi di Desa Alamendah, Kecamatan Rancabali Kabupaten Bandung, Jawa Barat Ciptadi Achmad Yusup; Dewi Sartiami
Jurnal Entomologi Indonesia Vol 12 No 1 (2015): Maret
Publisher : Perhimpunan Entomologi Indonesia

Strawberry is a new crop in Indonesia, and it has been developed because of its high demands. Thrips is one of the strawberry pest that can reduce quality and quantity strawberry productions. The research was conducted in Alamendah-Rancabali Village, Bandung District from March to August 2012. Thrips species that attack strawberry in Alamendah Village dominated by Frankliniella intonsa (Trybom). Other thrips that were found on plants surround strawberry field is Thrips palmi and Microcephalothrips abdominalis. Both of these thrips are found on tomatoes, potatoes, leek, blackberries, weeds (Amaranthus sp. and Ageratum haustonianum). The complete stadia of F. intonsa were found on strawberry flowers. Population densities in the field were found to be between 1.8 to 2.3 individual/flower. Around 68.4%-82.2% of the fields are are infested with F. intonsa. Based on test of F. intonsa attack ability on strawberry plant, the result shows 43% of fruit that harvested is malformed on tips of fruits. Therefore, F. intonsa is potential to become a important pest of strawberry plant.

Keanekaragaman semut dan pola keberadaannya pada daerah urban di Palu, Sulawesi Tengah Hasriyanty, Hasriyanty; Rizali, Akhmad; Buchori, Damayanti
Jurnal Entomologi Indonesia Vol 12 No 1 (2015): Maret
Publisher : Perhimpunan Entomologi Indonesia

Land-use change, mainly from natural forest to agricultural or settlement area, beside have negative impact on biodiversity also cause a new problem such as the presence of pests. In urban area, the most intrusive and common pest is ant. The objective of this research was to study the occurrence pattern of ants in urban habitat. The research was conducted in several urban habitat in of Palu, Central Sulawesi include of settlement, garden, city park, shrub, agricultural area and forest margin. Ants were observed with bait trap using tuna and sugar. In total, we found 38 ant species from all gradients of urban habitat in Palu. Ant diversity were significantly correlated with habitat condition. Species richness and composition of ants tend to increase with decreasing degree of human disturbance (from settlement to forest margin). The most dominant ant that always found in all urban habitat are Anoplolepis gracilipes, Solenopsis geminata and Paratrechina longicornis. Those species are wellknown as tramp species that co-exist with human and have negative impact to local ant species. Urbanization and anthropological disturbance facilitate the occurrence of tramp ant species in Palu urban habitat.

Bioekologi vektor demam berdarah dengue (DBD) serta deteksi virus dengue pada Aedes aegypti (Linnaeus) dan Ae. albopictus (Skuse) (Diptera: Culicidae) di kelurahan endemik DBD Bantarjati, Kota Bogor Zahara Fadilla; Upik Kesumawati Hadi; Surachmi Setiyaningsih
Jurnal Entomologi Indonesia Vol 12 No 1 (2015): Maret
Publisher : Perhimpunan Entomologi Indonesia

Dengue hemorrhagic fever (DHF) is a viral disease that threatened community health in Indonesia. As part of an eradication program, it is important to learn the behavioral aspect of the disease vector. The aims of this study were to detect the presence of dengue virus in Aedes spp., at Bantarjati Village, Bogor City and to learn to bioecology of. Aedes aegypti (Linnaeus). Detection of dengue virus in Aedes spp. were done by reverse transcription-polymerase chain reaction (RT-PCR) technique that consist of two phase were synthesis phase and cDNA amplification and dengue virus serotipe characterization. The Ae. aegypti and Ae. albopictus (Skuse) mosquitoes were collected using the landing and resting moquito collection technique booth indoors and outdoors. The highest density of Ae. aegypti and Ae. albopictus were found in April and the peak activity was occurred at 10:00-11:00 am. Dengue virus was not detected in female mosquitoes Aedes spp.

Pengaruh cendawan endofit terhadap biologi dan statistik demografi wereng batang cokelat Nilaparvata lugens Stál (Hemiptera: Delphacidae) Amanda Mawan; Damayanti Buchori; Hermanu Triwidodo
Jurnal Entomologi Indonesia Vol 12 No 1 (2015): Maret
Publisher : Perhimpunan Entomologi Indonesia

Endophytic fungi is an endosymbiont that lives within host plant tissues and does not necessary cause any harm to plants. This type of fungus are important as mediators in plant-herbivore interactions. One of the endophytic fungi in rice is Nigrospora sp. The effects of Nigrospora sp. on the biology and demographic statistic of Nilaparvata lugens Stál (Hemiptera: Delphacidae) were studied in the laboratory. We used Nigrospora sp. culture powder was used to inoculate the fungi to rice seeds by mixing 10 g of flour endophytic per 1 kg rice seeds. The mixture was then stored in damp and dark storage. Results showed that the rice seeds treated with endophytic fungi showed some resistance to N. lugens. Eggs and early stages of nymph mortality was increased, higher than the control. Endophytic fungi also affect the nymphs growth rates by slowing it down, prolonging N. lugens life cycle, preoviposition period as well as delayed the age at first reproduction. N. lugens population growth is effected by Nigrospora sp. in laboratory scale. Thus, it has the potential as an alternative way to control N. lugens population. In addition, inoculation of endophytic fungi could be a useful method for protecting rice plants from N. lugens.

Perbedaan respon Aedes aegypti (Linnaeus) (Diptera: Culicidae), terhadap paparan anti nyamuk bakar dan bunga keluwih (Artocarpus camansi, Blanco) Nur Endah Wahyuningsih; Ramauli Agustina Sihit
Jurnal Entomologi Indonesia Vol 12 No 1 (2015): Maret
Publisher : Perhimpunan Entomologi Indonesia

The control of dengue hemorrhagic fever (DHF) it is important to control the vector, i.e. Aedes aegypti (Linnaeus) and Ae. albopictus (Skuse). Usually, controls of these vectors are done using chemical insecticides. Research on mosquito resistance has been done, but the impact of mosquitoes that survive after synthetic (chemical) insecticides application has not been studied. The aim of this research was to analyze the differences of fecundity, fertility and vitality rate of mosquitoes that were exposed to natural insecticides i.e with burned breadnut flowers and mosquito coils containing transflutrin and d-aletrin. Mosquito samples were taken from field eggs which were exposed with synthetic and natural insecticides. Mosquitoes that remainder alive after 24 hours exposure were mated and each group were put in 2 cages, each repetition were repeated 3 times. The mosquito eggs were observed until adult mosquitoes die. Then, the fecundity, fertility and vitality rate were compared. Based on our analysis, there were no differences on fecundity rate, between control and mosquitoes that were exposed to natural insecticides, but there were significant differences between the control and the synthetic insecticides. Natural insecticides do not increase the rate of fecundity but synthetic insecticides may increase the rate of fecundity and number of mosquitoes and causes the mosquito lifespan longer than the control and natural insecticide treatment.

Keanekaragaman semut dan pola keberadaannya pada daerah urban di Palu, Sulawesi Tengah Hasriyanty, Hasriyanty; Rizali, Akhmad; Buchori, Damayanti
Jurnal Entomologi Indonesia Vol 12 No 1 (2015): Maret
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.12.1.39

Land-use change, mainly from natural forest to agricultural or settlement area, beside have negative impact on biodiversity also cause a new problem such as the presence of pests. In urban area, the most intrusive and common pest is ant. The objective of this research was to study the occurrence pattern of ants in urban habitat. The research was conducted in several urban habitat in of Palu, Central Sulawesi include of settlement, garden, city park, shrub, agricultural area and forest margin. Ants were observed with bait trap using tuna and sugar. In total, we found 38 ant species from all gradients of urban habitat in Palu. Ant diversity were significantly correlated with habitat condition. Species richness and composition of ants tend to increase with decreasing degree of human disturbance (from settlement to forest margin). The most dominant ant that always found in all urban habitat are Anoplolepis gracilipes, Solenopsis geminata and Paratrechina longicornis. Those species are wellknown as tramp species that co-exist with human and have negative impact to local ant species. Urbanization and anthropological disturbance facilitate the occurrence of tramp ant species in Palu urban habitat.

Analisis senyawa volatil dari ekstrak tanaman yang berpotensi sebagai atraktan parasitoid telur wereng batang coklat, Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymaridae) Wonorahardjo, Surjani; Nurindah, Nurindah; Sunarto, Dwi Adi; Sujak, Sujak; Zakia, Neena
Jurnal Entomologi Indonesia Vol 12 No 1 (2015): Maret
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.12.1.48

Plants produce volatiles as communication cues intra- or inter- species. Infested plants by herbivores will produce volatiles as indirect defense mechanism that attracts natural enemies of herbivores. Analysis of volatiles compounds produced by rice plant as result of infested brown plant hopper (BPH), Nilaparvata lugens Stí¢l, was done to identify compounds in the volatiles that potentially can be used as attractant for egg parasitoids of BPH, Anagrus nilaparvatae (Pang et Wang) (Hymenoptera: Mymaridae). This research was an early stage to develop formulation of parasitoid attractant. The research activities include volatiles extraction of infested rice stem by BPH eggs using acetone, n-hexane as the extraction solvents; analyses of volatile compounds with GC-MS; and bioassay of parasitoid orientation behavior to the volatiles using olfactometer methods. Extraction methods applied were maceration and continuous extraction followed by concentration. Bioassay on the parasitoid orientation behavior was done by using Y-tube olfactometer and every lot of bioassay using 30 parasitoid females with 3 replicates. The results showed that the volatile compounds of extract of infested rice stem by BPH eggs comprise of 16 components. The highest proportion of the components extracted with acetone is 2-Pentanone, 4-hydroxy-4-methyl (19,9%), while those with n-hexane is Hexanedioic acid, dioctyl ester (65%). A. nilaparvatae showed positive response to the volatiles extracted from infested rice plant by N. lugens eggs. Therefore, the volatiles can be used as an attractant for the egg A. nilaparvatae to support rice pest management.

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Location Kota bogor, Jawa barat INDONESIA

Abstract

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Contact Name
-

Contact Email
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Journal Mail Official
-

Editorial Address
-

Location
Kota bogor,

Jawa barat

INDONESIA