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Keanekaragaman dan struktur komunitas semut pada perkebunan lada di Lampung Yudiyanto, Yudiyanto; Qayim, Ibnul; Munif, Abdul; Setiadi, Dede; Rizali, Akhmad
Jurnal Entomologi Indonesia Vol 11 No 2 (2014): September
Publisher : Perhimpunan Entomologi Indonesia

The occurrence of ants in agricultural habitat is related to the availability of food resources as well as environmental condition for its nesting site. As predator, ants play an important role on controlling pest population in agricultural habitat. The objective of this research was to study the diversity of ants in pepper plantation. The research outcome can be used as basic information for cultivation management of pepper. Ecological observation was conducted in four regencies in Lampung Province with two selected plots on each regency. On each plot, ants were sampled using pitfall traps. In total, 28 ant species were recorded from pepper field in four regencies. Two species i.e. Anoplolepis gracilipes and Solenopsis geminataare well-known as tramp and invasive species. There is significantly different of ant species composition among regencies. The occurrence of ants in pepper plantationis probably affected by habitat condition surrounding pepper plantation and precipitation.

Keanekaragaman jenis dan perilaku menggigit vektor malaria (Anopheles spp.) di Desa Lifuleo, Kecamatan Kupang Barat, Kabupaten Kupang, Nusa Tenggara Timur Rahmawati, Ety; Hadi, Upik Kesumawati; Soviana, Susi
Jurnal Entomologi Indonesia Vol 11 No 2 (2014): September
Publisher : Perhimpunan Entomologi Indonesia

Malaria is a preventable and treatable mosquito-borne diseases, whose main victims are children and pregnant women. Indonesia is the second most affected region in South East Asia and has the the highest malaria burden after India. The research was aimed to study the species diversity and biting activity of malaria vectors (Anopheles spp.) in Lifuleo Village, West Kupang District, Kupang Regency, East Nusa Tenggara Province. The mosquitoes was collected by using (1) the human landing collection technique, (2) aspirators for collecting mosquitoes resting on the wall of houses and cow barn, and (3) light traps. The research was done for four months. The result showed that there were six species of Anopheles i.e., An. barbirostris, An. subpictus, An. annularis, An. vagus, An. umbrosus and An. indefinitus. An. barbirostris and An. subpictus were two species with the highest density. The value of man hour density (MHD) indoor and outdoor for An. barbirostris were 5.45 and 6.23 respectively, and for An. subpictus were 1.35 and 1.56, respectively. The blood sucking activity indoor and outdoor for An. barbirostris occured at 22:00 to 4:00 and 21:00 - 04 respectively, whereas for An. subpictus at 8:00 p.m. to 21:00 and 22:00 to 23:00, respectively. Based on the value of man hour density the mosquito Anopheles spp. in Lifuleo village were exophagic and exophilic.

Potential damages, seasonal abundance and distribution of Empoasca terminalis Distant (Homoptera: Cicadellidae) on soybean in South Sulawesi Nasruddin, Andi; Fattah, Abdul; Baco, Muhammad Said; Said, Ahwiyah Ekawati
Jurnal Entomologi Indonesia Vol 11 No 2 (2014): September
Publisher : Perhimpunan Entomologi Indonesia

Plant damages caused by leafhopper, Empoasca terminalis Distant (Homoptera: Cicadellidae) on soybean were first encountered in 2007 in Makassar, South Sulawesi. The insect has been constantly associated with soybean crops in the province ever since. The purposes of the present study were to (i) evaluate potential yield loss attributable to the leafhopper in an experimental set up, (ii) seasonal abundance of E. terminalis, and (iii) distribution of E. terminalis in all major soybean-producing areas in the province. Potential yield loss due to the leafhopper was assessed in a field experiment using two large plots. One of the plots was kept leafhopper-free by weekly insecticide sprays; and the other plot was left unsprayed to allow leafhopper infestation to occur. Adult abundance was weekly monitored using a sweep net throughout the season. Nymph abundance was determined by direct count on the plant leaves. Leafhopper distribution was assessed through surveys conducted in all major soybean-producing areas in South Sulawesi, from 2009–2013. The results of the study showed that E. terminalis caused an average yield loss of 26% on susceptible crops without insecticide use. First leafhopper infestation in all planting seasons occurred two weeks after the plant emergence. Rainfall negatively correlated with the leafhopper abundance. The leafhopper existed in all major soybean production areas in the province. Therefore, our results confirmed the status of E. terminalis as an important soybean pest in the region. In addition, crops planted early in the dry season could escape from heavy leafhopper infestation.

Pola sebaran kelompok telur Ostrinia furnacalis Guenée (Lepidoptera: Crambidae) pada lahan jagung da-Lopez, Yosefus F.; Trisyono, Y. Andi; Witjaksono, Witjaksono; Subiadi, Subiadi
Jurnal Entomologi Indonesia Vol 11 No 2 (2014): September
Publisher : Perhimpunan Entomologi Indonesia

Asian corn borer, Ostrinia furnacalis Guenée, is known as an important pest of maize, Zea mays L., in both whorl and reproductive stages. Management decisions based on egg-mass density is useful because decision is made before damage occurs. Observation on O. furnacalis egg-mass distribution in maize-field was carried out in Agricultural Training, Research, and Development Station (ATRD) UGM, Yogyakarta. The number of egg-masses laid on each plant surface in maize-field was sampled in reproductive stage of corn at 52 – 58 days after planting. The spatial dispersion was analyzed using the ratio variance-to-mean (Ïƒ2/Î¼ = IÎ´), Morista's Index (IÎ³), and the negative binomial parameter (Îº-value). The results showed that horizontal and vertical distributions were aggregated distributions (Ïƒ2 > Î¼ or Ïƒ2/Î¼ > 1). In line with the increasing age of plant, the degree of clustering or aggregation likely tended to decline (the Îº-value increased, Morisita index decreased) indicating the possible departure from aggregation to randomness (Poison distribution) due to the heterogeneity of the environment, such as microclimate, preferred parts of the plants, and occurrence of natural enemies. The results concluded that the horizontal and vertical distributions of egg-masses of O. furnacalis on corn in generative phase were clustered with the degree of clustering tended to decrease by the increase of age of corn. These findings provide the bases for further study on the ecology and biology of O. furnacalis for management decision-making process.

Pengendalian Aphis craccivora Koch. dengan kitosan dan pengaruhnya terhadap penularan Bean common mosaic virus strain Black eye cowpea (BCMV-BlC) pada kacang panjang Megasari, Dita; Damayanti, Tri Asmira; Santoso, Sugeng
Jurnal Entomologi Indonesia Vol 11 No 2 (2014): September
Publisher : Perhimpunan Entomologi Indonesia

Aphis craccivora is one of the important pests on yard long bean. It causes direct damage and also has an indirect effect as insect vector of the Bean common mosaic virus (BCMV). The research was done to test the effectiveness of chitosan in suppressing aphid population growth, feeding preference and its ability in transmiting BCMV. Chitosan with concentration ranging of 0.1–1.0% were applied on leaves using spraying method at 1 day before BCMV transmission. BCMV was transmitted by using 3 individuals of viruliferous aphids on each plant. Results show that chitosan treatments on leaves or plants significantly suppressed the population and feeding preferences of A. craccivora. Further, treated plants showed lower disease incidence, severity and BCMV titre significantly compared with untreated control plants. The positive effects of chitosan in suppressing population growth as feeding preferences and BCMV transmission might be due to the anti-feedant effect of chitosan on A. craccivora. Based on the result, chitosan at concentration 0.9% is the most effective concentration in suppressing BCMV and its vector A. craccivora.

Interaksi tropik antara hama dan parasitoid pada pertanaman sayuran: faktor pembentuk dan implikasinya terhadap keefektifan parasitoid Nugraha, Muhamad Nurhuda; Buchori, Damayanti; Nurmansyah, Ali; Rizali, Akhmad
Jurnal Entomologi Indonesia Vol 11 No 2 (2014): September
Publisher : Perhimpunan Entomologi Indonesia

The condition of agroecosystem may affect the diversity and effectiveness of parasitoid communities as natural enemies of insect pests. Agricultural intensification such as monoculture cultivation as well as application of insecticide could also cause declining to parasitoid diversity and ineffective performance of parasitoids in agricultural field. The objective of this research was to study trophic interaction between pests and parasitoids in different field of vegetable crops and to investigate the factors that determining those interactions as well as its implication on parasitoid effectiveness. Vegetable crop fields were grouped into three different categories i.e. based on the pattern of cultivation, diversity of vegetable crops around the field and age of plant. On each crop field, insects were sampled using 50 m of transect by collecting eggs, larvae and pupae of pests. In total, 15 species of pests and 15 species of parasitoids were recorded from eight species of vegetable crops. Based on the analysis, trophic interaction between pests and parasitoids were affected by cultivation system, condition of crop field (species diversity of crops in its surrounding) and age of vegetable plants. Although it was not significance, the effectiveness of parasitoids according to their parasitism level, tend to higher in trophic interaction that determined from crop field with organic systems and with diverse of crop plants.

Keanekaragaman jenis dan perilaku menggigit vektor malaria (Anopheles spp.) di Desa Lifuleo, Kecamatan Kupang Barat, Kabupaten Kupang, Nusa Tenggara Timur Rahmawati, Ety; Hadi, Upik Kesumawati; Soviana, Susi
Jurnal Entomologi Indonesia Vol 11 No 2 (2014): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.11.2.53

Malaria is a preventable and treatable mosquito-borne diseases, whose main victims are children and pregnant women. Indonesia is the second most affected region in South East Asia and has the the highest malaria burden after India. The research was aimed to study the species diversity and biting activity of malaria vectors (Anopheles spp.) in Lifuleo Village, West Kupang District, Kupang Regency, East Nusa Tenggara Province. The mosquitoes was collected by using (1) the human landing collection technique, (2) aspirators for collecting mosquitoes resting on the wall of houses and cow barn, and (3) light traps. The research was done for four months. The result showed that there were six species of Anopheles i.e., An. barbirostris, An. subpictus, An. annularis, An. vagus, An. umbrosus and An. indefinitus. An. barbirostris and An. subpictus were two species with the highest density. The value of man hour density (MHD) indoor and outdoor for An. barbirostris were 5.45 and 6.23 respectively, and for An. subpictus were 1.35 and 1.56, respectively. The blood sucking activity indoor and outdoor for An. barbirostris occured at 22:00 to 4:00 and 21:00 - 04 respectively, whereas for An. subpictus at 8:00 p.m. to 21:00 and 22:00 to 23:00, respectively. Based on the value of man hour density the mosquito Anopheles spp. in Lifuleo village were exophagic and exophilic.

Keanekaragaman dan struktur komunitas semut pada perkebunan lada di Lampung Yudiyanto, Yudiyanto; Qayim, Ibnul; Munif, Abdul; Setiadi, Dede; Rizali, Akhmad
Jurnal Entomologi Indonesia Vol 11 No 2 (2014): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.11.2.65

The occurrence of ants in agricultural habitat is related to the availability of food resources as well as environmental condition for its nesting site. As predator, ants play an important role on controlling pest population in agricultural habitat. The objective of this research was to study the diversity of ants in pepper plantation. The research outcome can be used as basic information for cultivation management of pepper. Ecological observation was conducted in four regencies in Lampung Province with two selected plots on each regency. On each plot, ants were sampled using pitfall traps. In total, 28 ant species were recorded from pepper field in four regencies. Two species i.e. Anoplolepis gracilipes and Solenopsis geminataare well-known as tramp and invasive species. There is significantly different of ant species composition among regencies. The occurrence of ants in pepper plantationis probably affected by habitat condition surrounding pepper plantation and precipitation.

Pengendalian Aphis craccivora Koch. dengan kitosan dan pengaruhnya terhadap penularan Bean common mosaic virus strain Black eye cowpea (BCMV-BlC) pada kacang panjang Megasari, Dita; Damayanti, Tri Asmira; Santoso, Sugeng
Jurnal Entomologi Indonesia Vol 11 No 2 (2014): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.11.2.72

Aphis craccivora is one of the important pests on yard long bean. It causes direct damage and also has an indirect effect as insect vector of the Bean common mosaic virus (BCMV). The research was done to test the effectiveness of chitosan in suppressing aphid population growth, feeding preference and its ability in transmiting BCMV. Chitosan with concentration ranging of 0.1–1.0% were applied on leaves using spraying method at 1 day before BCMV transmission. BCMV was transmitted by using 3 individuals of viruliferous aphids on each plant. Results show that chitosan treatments on leaves or plants significantly suppressed the population and feeding preferences of A. craccivora. Further, treated plants showed lower disease incidence, severity and BCMV titre significantly compared with untreated control plants. The positive effects of chitosan in suppressing population growth as feeding preferences and BCMV transmission might be due to the anti-feedant effect of chitosan on A. craccivora. Based on the result, chitosan at concentration 0.9% is the most effective concentration in suppressing BCMV and its vector A. craccivora.

Pola sebaran kelompok telur Ostrinia furnacalis Guenée (Lepidoptera: Crambidae) pada lahan jagung da-Lopez, Yosefus F.; Trisyono, Y. Andi; Witjaksono, Witjaksono; Subiadi, Subiadi
Jurnal Entomologi Indonesia Vol 11 No 2 (2014): September
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.11.2.81

Asian corn borer, Ostrinia furnacalis Guenée, is known as an important pest of maize, Zea mays L., in both whorl and reproductive stages. Management decisions based on egg-mass density is useful because decision is made before damage occurs. Observation on O. furnacalis egg-mass distribution in maize-field was carried out in Agricultural Training, Research, and Development Station (ATRD) UGM, Yogyakarta. The number of egg-masses laid on each plant surface in maize-field was sampled in reproductive stage of corn at 52 – 58 days after planting. The spatial dispersion was analyzed using the ratio variance-to-mean (Ïƒ2/Î¼ = IÎ´), Morista's Index (IÎ³), and the negative binomial parameter (Îº-value). The results showed that horizontal and vertical distributions were aggregated distributions (Ïƒ2 > Î¼ or Ïƒ2/Î¼ > 1). In line with the increasing age of plant, the degree of clustering or aggregation likely tended to decline (the Îº-value increased, Morisita index decreased) indicating the possible departure from aggregation to randomness (Poison distribution) due to the heterogeneity of the environment, such as microclimate, preferred parts of the plants, and occurrence of natural enemies. The results concluded that the horizontal and vertical distributions of egg-masses of O. furnacalis on corn in generative phase were clustered with the degree of clustering tended to decrease by the increase of age of corn. These findings provide the bases for further study on the ecology and biology of O. furnacalis for management decision-making process.

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Journal Mail Official
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Kota bogor,

Jawa barat

INDONESIA