DSpace Repository :: Browsing by Author "Salbiah, Desita"

Browsing by Author "Salbiah, Desita"

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Biology Of Helopeltis Theivora (Hemiptera: Miridae) on Acasia Mangium Willd
(2015-05-18) Rustam, Rusli; Sucahyono, Muhamad Pangky; Salbiah, Desita
One of the problems in the management of A. mangium is Helopeltis sp. attack. It is important to study about the biology of Helopeltis sp because current research and report of biology of Helopeltis theivora on A. mangium is very limited. The research was aimed to know the biology of H. theivora. The observations of pest biology were carried out in twenty repititions. Then the result was arranged into the insect life–table in order to easy analysis of the observation. The parameters measured were the number of eggs, fecundity, longevity of nymphs and adult insects. An adult insect had the longest life span. The female and male ratio was 1:1,43. The Female maximum life span is 15 days. The total eggs produced by a female insect was 46,74. H. theivora had a high reproductive capacity with R0 at 11.40, T 28.09, r 0.09 and λ 1.09.
Cendawan Entomopatogen Beauveria Bassiana Vuillemin Lokal Sebagai Agen Pengendali Hama Walang Sangit (Leptocorisa Oratorius Fabricius) Pada Tanaman Padi Sawah
(2015-05-11) Salbiah, Desita; Rumi’an
Leptocorisa oratorius (Hemiptera: Alydidae) is a pest potensial that at certain times become an important pest . This study aimed to test the ability of several concentrations of entomopathogenic fungi B. bassiana Vuillemin Riau local to get a good concentration to control paddy bug pests Leptocorisa oratorius F. This research was conducted at the Center of Agricultural Development and Plant Pests Laboratory, Agriculture Faculty, University of Riau from September 2012 to February 2013. This research has been carried out by using a completely randomized design (CRD), with 8 treatments and 4 replications, in order to obtain 32 experimental units. Each experimental unit consist of 10 imago paddy bug pest, i.e. 0 g/l aquades, 10 g/l aquades, 15 g/l aquades, 20 g/l aquades, 25 g/l aquades, 30 g/l aquades, 35 g/l aquades and 40 g/l aquades. Data were analyzed statistically by analysis of variance and further test with 5 % level of Duncan’s New Multiple Range Test (DNMRT). The parameters observed during the initial test imago death (hours), lethal time 50 (hours), percentage of total mortality (%), temperature and humidity as supporting observations. The results showed local entomopathogenic fungi Beauveria bassiana at a concentration of 35 g/l aquades with a density of 7.98 x 107 conidia/ml is better at controlling paddy bug pest Leptocorisa oratorius F, because cause total mortality of 97.5 % for 12 days (297 hours), the early death of during 13.50 hours and lethal time 50 during 144 hours
Daya Pemangsaan Cecopet (Euborellia annulata fabricus) (Dermaptera: Annisolabididae) Lokal Terhadap Larva Kumbang Janur Kelapa (Brontispa longissima gestro) (Coleoptera: Chrysomelidae) Di Laboratorium
(2013-06-25) M. Alhadad; Salbiah, Desita; Sutikno, Agus
One of the problems is that there is increased production of coconut pests attack crops (OPT) coconut leaf beetle (Brontispa longissima Gestro). Alternative control is environmentally friendly with the use of natural enemies. Some of the potential natural enemies that can be used are predators cecopet (Euborellia annulata Fabricus) locally. The purpose of this study was to determine the ability of the imago cecopet prey (E. annulata Fabricus) on local coconut leaf beetle larvae (B. longissima Gestro). This research was conducted at the Laboratory of Plant Pest Faculty of Agriculture, University of Riau from September to November 2012. This research used Completely Randomized Design (CRD) with 5 treatments and 4 replications that is one female, one male, two females, two males, and a couple (male and female). The treatment is the treatment most prey 2 tail female imago capable of coconut leaf beetle larvae prey (B. longissima Gestro) that is 85% more, compared to other treatments that imago pair of male and female 75%, male imago treatment 2 tails 70%, treatment 1 tail female imago 63.75%, and treatment 1 tail male imago 60%. Most predation occurs in the first hour for the treatment of female imago 2 heads, 1 tail imago females and 1 male imago tail. In treatment 2 tails and a pair of male imago imago males and females, most predation occurs in the second hour.
FAUNA SEMUT TANAH PADA LAHAN GAMBUT YANG DIALIHGUNAKAN MENJADI KEBUN KELAPA SAWIT DAN HTI AKASIA SERTA PERANANNYA SEBAGAI PENGANGKUT GAMBUT
(2014-03-28) Sari, Melisa Ratna; Muhammad, Ahmad; Salbiah, Desita
Deforestation and conversion of peatlands into plantations have promoted the proliferation of ground dwelling ants (class Insecta, order Hymenoptera, family Formicidae) in peatland environments. The insects, which build belowground nests, potentially affect the physical characteristics of peat through pedoturbation activity. We conducted the present study to know the species assemblages of ground-nesting ants and to assess the significance of peat displacement made by the insects. Surveys were carried out in oil plam plantations and acacia plantations (“HTI”) in Bukit Batu area, Bengkalis District, Riau Province. Ants were directly sampled at the nest’s holes that occurred within sampling transects (4 locations/plantation type and 4 transects/location). In a total of 190 nests, we encountered 16 ants spesies belonging to five subfamilies (Dolichoderinae, Ectatomminae, Formicinae, Myrmicinae, and Ponerinae). There were 14 species found in oil palm plantations and seven species in acacia plantations. Most abundant nests in the former belonged to Pheidole sp1 (262.5 nests/ha), Odontoponera trasversa (212.5 nests/ha), Dolichoderus sp. (187.5 nests/ha) in oil palm plantations. In acacia plantation, Anoplolepis gracilipes (612.5 nests/ha), Paratrechina longicornis (212.5 nests/ha) had the most abundant nests. The overall nest density was 1250 nests/ha in oil palm plantations and 1125 nests/ha in acacia plantations. In oil palm plantations, ants soil species that carried out peat in the biggest total is Pheidole sp.1 (1101,8 kg/ha/year), Dolichoderus sp. (807.6 kg/ha/year) and Irydomyrmex sp. (677.1 kg/ha/year) and in acacia plantations Anoplolepis gracilipes (3688.8 kg/ha/year), Odontomachus sp.(1002.8 kg/ha/year), dan Paratrechina longicornis (698.1 kg/ha/year). Total of peat transport rate in oil palm plantations is 4.4 ton/ha/year and in acacia plantation (5.9 ton/ha/year)
FAUNA SEMUT TANAH PADA LAHAN GAMBUT YANG DIALIHGUNAKAN MENJADI KEBUN KELAPA SAWIT DAN HTI AKASIA SERTA PERANANNYA SEBAGAI PENGANGKUT GAMBUT
(2013-08-30) Sari, Melisa Ratna; Muhammad, Ahmad; Salbiah, Desita
Deforestation and conversion of peatlands into plantations have promoted the proliferation of ground dwelling ants (class Insecta, order Hymenoptera, family Formicidae) in peatland environments. The insects, which build belowground nests, potentially affect the physical characteristics of peat through pedoturbation activity. We conducted the present study to know the species assemblages of ground-nesting ants and to assess the significance of peat displacement made by the insects. Surveys were carried out in oil plam plantations and acacia plantations (“HTI”) in Bukit Batu area, Bengkalis District, Riau Province. Ants were directly sampled at the nest’s holes that occurred within sampling transects (4 locations/plantation type and 4 transects/location). In a total of 190 nests, we encountered 16 ants spesies belonging to five subfamilies (Dolichoderinae, Ectatomminae, Formicinae, Myrmicinae, and Ponerinae). There were 14 species found in oil palm plantations and seven species in acacia plantations. Most abundant nests in the former belonged to Pheidole sp1 (262.5 nests/ha), Odontoponera trasversa (212.5 nests/ha), Dolichoderus sp. (187.5 nests/ha) in oil palm plantations. In acacia plantation, Anoplolepis gracilipes (612.5 nests/ha), Paratrechina longicornis (212.5 nests/ha) had the most abundant nests. The overall nest density was 1250 nests/ha in oil palm plantations and 1125 nests/ha in acacia plantations. In oil palm plantations, ants soil species that carried out peat in the biggest total is Pheidole sp.1 (1101,8 kg/ha/year), Dolichoderus sp. (807.6 kg/ha/year) and Irydomyrmex sp. (677.1 kg/ha/year) and in acacia plantations Anoplolepis gracilipes (3688.8 kg/ha/year), Odontomachus sp.(1002.8 kg/ha/year), dan Paratrechina longicornis (698.1 kg/ha/year). Total of peat transport rate in oil palm plantations is 4.4 ton/ha/year and in acacia plantation (5.9 ton/ha/year).
KEANEKARAGAMAN DAN BIOMASSA RAYAP TANAH DI HUTAN ALAM DAN HUTAN TANAMAN INDUSTRI (HTI) PADA LAHAN GAMBUT DI KAWASAN BUKIT BATU, RIAU
(2014-03-28) Ayu, Febri; Muhammad, Ahmad; Salbiah, Desita
The conversion of peat swamp forest into industrial pulpwood (Acacia crassicarpa) plantation forest (“HTI”) has been suspected to cause substantial change in biodiversity, such as might be reflected in termite assemblages. This study was carried out to investigate how such conversion affects subterranean termites diversity and biomass. The study area was conducted at Bukit Batu District, Riau Province. Termite sampling was done in September and October 2011 at four natural forest sites in Bukit Batu Wildlife Reserve and four HTI sites situated near the former. Termites were systematically sampled with the help of a transect of 100 m drawn on each site. We used 10 square subplots (1 m x 1 m) situated along the transect with a regular interval of 10 m, and termites were extracted down to 10 cm deep beneath the peat surface. Nine species were found, consisting of eight genera, four subfamilies and two families. Termite species found only under natural forest were Microcerotermes dubius, Bulbitermes flavicans, Nasutitermes proatripennis and Ceylonitermes indicola. Species encountered only under HTI was coptotermes curvignathus. Four species occurring in both land use types were Capritermes semarangi, Capritermes mohri, Schedorhinotermes malaccensis and Parrhinotermes aequalis (Sørensen Similarity Index = 61.54%). Termite biomass was relatively small, with only 0.53 ± 0.41 gr/m2 and 0.29 ± 0.19 gr/m2 under natural forest and HTI, respectively, and there was no significant difference between them
KEANEKARAGAMAN DAN BIOMASSA RAYAP TANAH DI HUTAN ALAM DAN HUTAN TANAMAN INDUSTRI (HTI) PADA LAHAN GAMBUT DI KAWASAN BUKIT BATU, RIAU
(2013-03-04) Ayu, Febri; Muhammad, Ahmad; Salbiah, Desita
The conversion of peat swamp forest into industrial pulpwood (Acacia crassicarpa) plantation forest (“HTI”) has been suspected to cause substantial change in biodiversity, such as might be reflected in termite assemblages. This study was carried out to investigate how such conversion affects subterranean termites diversity and biomass. The study area was conducted at Bukit Batu District, Riau Province. Termite sampling was done in September and October 2011 at four natural forest sites in Bukit Batu Wildlife Reserve and four HTI sites situated near the former. Termites were systematically sampled with the help of a transect of 100 m drawn on each site. We used 10 square subplots (1 m x 1 m) situated along the transect with a regular interval of 10 m, and termites were extracted down to 10 cm deep beneath the peat surface. Nine species were found, consisting of eight genera, four subfamilies and two families. Termite species found only under natural forest were Microcerotermes dubius, Bulbitermes flavicans, Nasutitermes proatripennis and Ceylonitermes indicola. Species encountered only under HTI was Coptotermes curvignathus. Four species occurring in both land use types were Capritermes semarangi, Capritermes mohri, Schedorhinotermes malaccensis and Parrhinotermes aequalis (Sørensen Similarity Index = 61.54%). Termite biomass was relatively small, with only 0.53 ± 0.41 gr/m2 and 0.29 ± 0.19 gr/m2 under natural forest and HTI, respectively, and there was no significant difference between them
KEANEKARAGAMAN DAN BIOMASSA RAYAP TANAH DI KEBUN KELAPA SAWIT DAN KEBUN PEKARANGAN PADA LAHAN GAMBUT DI KAWASAN BUKIT BATU, RIAU
(2013-03-04) Purnasari, Treshandila; Muhammad, Ahmad; Salbiah, Desita
This study has been conducted with the objective to know and compare the diversity and biomass of subterranean termites on peatland being used as oil palm plantation and homegarden in Bukit Batu area, Riau. Termite sampling was done in September 2011 at two villages. Four plots were selected to represent each land use type. In each plot one transect line of 100 m was drawn, on which ten subplots of 1 m x 1 m were situated with a distance of 10 m from one to the next. Termites were collected from beneath the peat surface down to a depth of 10 cm within each plot. They were weighed alive as fresh biomass. Six termite species belonging to four genera, three subfamilies and two families were encountered. There were only three species (Parrhinotermes inaequalis, Schedorhinotermes sarawakensis and Coptotermes curvignathus) found under oil palm, all of which also occurred under homegarden (Sorensen Similarity Index=66.67%). Capritermes latignathus, Parrhinotermes sp. and Coptotermes kalshoveni were three species encountered only under homegarden. Termite biomass was invariably small under both land uses, with an average of 0.9 ± 0.40 gr/m2 and 0.3 ± 0.32 gr/m2 under oil palm and homegarden, respectively. There were no significant difference in termite biomass between these land uses
KEANEKARAGAMAN DAN KELIMPAHAN FAUNA SEMUT TANAH PADA LAHAN GAMBUT YANG DIALIHGUNAKAN MENJADI KEBUN KELAPA SAWIT DAN HTI AKASIA DI KAWASAN BUKIT BATU, RIAU
(2013-07-30) Rodhiyah, Zuli; Muhammad, Ahmad; Salbiah, Desita
The aim of this study was to assess the structure of ground-dwelling ant fauna (class Insecta; order Hymenoptera; family Formicidae) as well as the nest abundance and species diversity in peatland that had been converted into oil palm plantation and industrial pulpwood plantation (HTI). This study was carried out in Bukit Batu area, Bengkalis District, Riau Province. Four oil palm plots (all about 5-6 year-old Elaeis guineensis stands) and four HTI plots (all about 5-6 yr-old Acacia crassicarpa stands) were selected as sampling sites. In each selected plot, four separated sampling transects of 25 m x 2 m were established. Ground-dwelling ants occurring within the plots were sampled directly from their nest holes. There were in total only 13 ants species encountered, of which the most frequently-encountered ant species were members of Formicinae and the least one was member of Ectatomminae. Eleven of them (Anoplolepis gracilipes, Anochetus sp., Dolicoderus sp., Gnamptogenys sp., Iridomyrmex sp., Meranoplus sp., Odontoponera transversa, Odontomachus sp., Pheidole sp., Paratrechina longicornis, and Tapinoma sp.) were found in oil palm plots and eight (Anoplolepis gracilipes, Iridomyrmex sp., Odontoponera transverse, Odontomachus sp., Pheidole sp., Paratrechina longicornis, Camponotus sp., and Polyrachis sp..) were encountered in HTI plots. Inter-plot similarity in species assemblages between oil palm plantation and HTI was averagely 53,5% (Sørensen Similarity Index). Similarity between oil palm plots was averagely 75,9% and between HTI plots was 57,9%. Species diversity at plot level was invariable low in both land use types (values of Shannon Weiner Index ranged only 0.22-0.24). Species with highest encounter frequency and most abundant nests in oil palm plots were Odontomachus sp. and Pheidole sp., while in HTI plots Iridomyrmex sp., Paratrechina longicornis and especially Anoplolepis gracilipes were the dominant species. Average overall nest density was 1000 nests/ha and 1112.5 nests/ha in oil palm plantation and HTI, respectively.
PEMBERIAN BEBERAPA KONSENTRASI KITOSAN UNTUK MENGENDALIKAN HAMA RAYAP Coptotermes curvignathus Holmgren (Isoptera : Rhinotermitidae)
(2013-01-26) Yulis, Raima; Salbiah, Desita; Sutikno, Agus
Termite attack on palm oil plantation is one of the major problem and difficult control, because termite live on the ground soil. Alternative control can be used using shrimp shell, is the name with chitosan. Research has been conducted at Plant Pest Laboratory, Faculty of Agriculture, University of Riau from October until December 2011. The objective is to find the effect of some concentrations of shrimp shell to control termite. The research carried out by using completely randomize design with four treatments and five replications. The treatments were shrimp shell concentrations powder without chitosan (control), 3 g/500ml CH3COOH, 5g/500ml CH3COOH and 7 g / 500ml CH3COOH. The results of this research show that the concentration of chitosan powder 3 g / 500ml CH3COOH is better a concentration, because at this concentration is able to kill termites Coptotermes curvignathus 84%, and the of concentration of chitosan powder 7 g / 500ml CH3COOH can cause total mortality of 100%.
Penggunaan Beberapa Perangkap Dengan Ketinggian Berbeda Untuk Mengendalikan Lalat Buah (Diptera: tephritidae) Pada Tanaman Cabai Merah (Capsicum annum L)
(2013-04-17) Purnama, Edi; Salbiah, Desita; Sutikno, Agus
Fruit flies are a major pest in chili, the need for environmentally friendly control techniques are highly desirable, especially effective and efficient, and easy to get one farmer is using restraint techniques petrogenol Steiner traps and pitfalls glumon to the level of a distinct yellow. The study aimed to determine the ability of the two types of traps with different heights in controlling fruit fly pests in cropping red chili (Capsicum annum L). This research has been carried out by using randomized block design (RBD) with 6 treatments and 4 groups, in order to obtain 24 units of the experiment. The treatments were performed in this experiment are: yellow traps glumon with a height of 100 cm, yellow traps glumon with a height of 150 cm, yellow traps glumon with a height of 200 cm, Steiner traps petrogenol with a height of 100 cm, Steiner traps petrogenol with a height of 150 cm and Steiner traps petrogenol with a height of 200 cm. Data were analyzed statistically by analysis of the range and tested further by Duncan's New Multiple Range Test (DNMRT) at the level of 5%. The parameters measured were, identification of trapped fruit flies, the number of fruit flies trapped, the number of male fruit flies trapped, the number of fruit flies trapped females and sex ratio of fruit flies. The results showed a yellow trap glumon with a height of 100 cm is more effective fruit fly trap with average percentage ranged from 498.25 to 531.5 tails for 8 weeks observed.
Penggunaan Ekstrak Daun Paitan (Tithonia diversifolia Grey) untuk Mengendalikan Hama Kutu Daun (Aphis gossypii Glover) padaTanaman Cabai (Capsicum annum L.) “The Use Of Marigold Leaf Extract (Tithonia diversifolia Grey) for Controlling The Aphids (Aphis gossypii Glover) On Red Pepper Plants (Capsicum annum L.)”
(2013-07-17) Hendra, Wawan; Salbiah, Desita; Sutikno, Agus
Red pepper (Capsicum annuum L.) is an important commodities which have high economic value in Indonesia. Aphis glossypii is a major pest of pepper plants which cause the production loss between 6%-25% and reached more than 90% as a virus vector. Using marygold leaf extract as an insecticide expected to reduce the risk of crop losses by A. gossypii. This study aims to find and obtained the better concentration of Tithonia diversifolia leaf extract to controling A. gossypii on red pepper plants. The Research conducted experimentally using a completely randomized design (CRD) with 6 treatments (T. diversifolia leaf extract concentration) and 4 replications. The data were statistically analyzed using variance analysis and tested further with LSD (Least Significant Difference) at the 5% level. The results showed that concentration 4 g/l water ofT. diversifolia leaf extract is effective to controlling A. gossypii with a mortality about 91.67%, the initial death time 2.25 hours and LT50 about 20.25 hours.
Penggunaan Ekstrak Daun Pepaya (Carica papaya l.) Untuk mengendalikan Hama Kutu Daun (Aphis gossypii Glover) Pada Tanaman Cabai (Capsicum annum l.)
(2013-01-10) Nechiyana; Sutikno, Agus; Salbiah, Desita
Red pepper (Capsicum annum L.) is an important commodity and have high economic value in Indonesia. Problems are often encountered in the cultivation of pepper plants are pests. Aphis gossypii aphids are the main pests that attack the leaves in pepper. Efforts to control pest aphid Aphis gossypii still use synthetic pesticides. Carica papaya is one plant that can be used as a pesticide plant, because papain papaya leaves contain compounds that kill pests aphids Aphis gossypii. Conducted using completely randomized design (CRD), with six treatments and five replications, in order to obtain thirty units of the experiment. Each experimental unit consisted of thirty head of pest aphid Aphis gossypii to the fourth instar. The treatment used is no papaya extract (control), the concentration of papaya leaf extract 20 g / l of water, 40 g / l of water, 60 g / l of water, 80 g / l of water and 100 g / l of water. The data obtained were statistically analyzed by analysis of variance and LSD test further with the level 5%. Parameters measured were early death (hours), lethal time 50 (hours), daily mortality (%), total mortality (%), lethal concentration (%), changes in behavior and morphology, as well as temperature and humidity. The results showed that papaya leaf extract is able to control pest aphid Aphis gossypii from all treatments were observed. The concentration of papaya leaf extract 20 g / l of water was capable of causing mortality of aphids Aphis gossypii by 91.99% in the 50% lethal.
Potensi Beauveria Bassiana Vuillemin Lokal Dalam Mengendalikan Hama Brontispa Longissima Gestro ( Coleoptera: Chrysomelidae ) Pada Tanaman Kelapa
(2015-05-11) Salbiah, Desita; Sutra
Brontispa longissima pest is important pest at plantation of coconut in subprovince of Indragiri Hilir, Riau province. This research to test the ability of some concentration of local entomophatogenic fungus Beauveria bassiana to control pest of coconut leaf beetle Brontispa longissima. The experiment was conducted at Plant Pest Laboratory at Agriculture Faculty Riau University using completely randomized design with 6 treatment and 4 replication. Each experimental unit consisted of ten B. longissima beetle. Treatment consist of some concentration of local B.bassiana that is 0g/l water, 40g/water, 45g/l water, 50g/water, 55g/l water and 60g/l water. The data obtained were statistically analyzed by analysis of variance and further test with level 5% of Duncan New Multiple Range Test (DNMRT). The result showed that concentration of B. bassiana 55g/l water is effective to control B. longissima with total mortality is 85% during 276 hours.
PREFERENSI LIPAS KAYU (Panesthia angustipennis angustipennis) TERHADAP KAYU AKASIA (Acacia crassicarpa) DENGAN TINGKAT LAPUK BERBEDA
(2016-01-26) Hawari, Sinta Yulia; Muhammad, Ahmad; Salbiah, Desita
Wood-feeding cockroach (Panesthia angustipennis angustipennis, Blaberidae, Blattodea) is frequentlyencounteredin decaying wood in acacia (Acacia crassicarpa) plantation forests on peatlands. The consumption and maceration of wood by this insect potentially enhance nutrient cycling in this plantation system. Preliminary observations under field conditions indicated that the roach preferred wood of certain decay levels. This study was conducted to elucidate the roach’s preference of acacia wood at varying decay levels. Experiment has been carried out in the laboratory using adult insects, whichwere caged individually and offered either a wood bait, either one of four decay levels (TL-I, TL-II, TL-III, and TL-IV). The baits had mass/volume ratiovarying between 0,44 g/cm3 s/d 0,24 g/ cm3 corresponding to the decay level, while the average humidity of the wood was 56,16%. Observations were conducted every 7 days for 70 consecutive days. At the end of the experiment, wood bait TL-IV underwent significantly larger mass reduction(47,12%) than wood bait TL-I, TL and TL-II-III (averagely only about 8,43%). The mass reduction in wood bait TL-IV was caused by consumption (14,42%) and maceration (32,70%).
SUBTERRANEAN TERMITE FAUNA ON A PEATLAND: A PRELIMINARY ASSESSMENT OF THE SPECIES DIVERSITY AND BIOMASS UNDER DIFFERENT LAND USE TYPES
(2014-05-21) Muhammad, Ahmad; Ayu, Febri; Saputra, Andi; Yus, Yusnarti; Purnasari, Treshandila; Salbiah, Desita
Owing to their wet nature, peatlands in their original conditions may not be favorable habitats for most ground-dwelling organisms. Apart from being acidic, peat is water saturated most of the times, making it unlikely habitatble for such organisms. After the construction of drainage system, however, substantial amount of water can be drawn out from the peat, resulting the drop of water table. We hypothesized that the alteration of this fundamental feature of peatlands might promote the proliferation ground-dwelling organisms in peatland habitats and/or colonization by non-native ones. We tested our hypothesis by surveying termite species richness and biomass under different land use systems that reflected a gradient of water table alteration (from shallower than 20 cm to deeper than 100 cm below the surface). The study has been carried out under peat swamp forest, rubber jungle, rubber plantation, oil palm plantation, homegarden, and acacia plantation forest in Bukit Batu area, Riau, Sumatra. We encountered a total 18 spp of subterranean termites with the average of only 6.2 spp found under each land use type. The average subterranean termite biomass was 0.29 gr/m2. Our data did not support our hypothesis in a way that subterranean termites were even most diverse (9 spp) and demonstrated largest biomass (0.53 gr/m2) under peat swamp forest, where the water table was never deeper than 20 cm and the peat was almost always watersaturated. However, the striking differences in species composition between peat swamp forest assemblage and those under other land use types suggest that the conversion of peatland might have significantly reduced the number of species native to this ecosystem, while inviting nonnative ones
Test Some Of Concentration Extract Rolled Tobacco To Control Long Bean Pod Borer (Maruca testulali Geyer) In Plant Long Beans (Vigna sinensis L.)
(2013-07-27) Salomo, Budi; Laoh,J. Henni; Salbiah, Desita
Long bean pod borer, Maruca testulalis Geyer (Lepidoptera: Pyralidae) is a major pest on long bean plants. These pests are polyfagus which has many host plants, especially in long bean plants. One alternative that can be used to minimize the application of chemical pesticides is an extract rolled tobacco (Nicotiana tabacum). The research was conducted at the Plant Pests Laboratory, Faculty of Agriculture, University of Riau from Januari 2013 until April 2013. This research used completely randomized design (CRD), with 5 treatments and 4 replications. The treatments are concentrations of extract rolled tobacco, 0 g/l of water, 0,5 g/l of water, 1 g/l of water, 1,5 g/l of water and 2 g/l of water. The result showed that the concentration of extract rolled tobacco 2 g/l concentration of water is suitable for controlling long bean pod borer, Maruca testulalis Geyer. The percentage of total mortality is 82,50 % and cause 50% mortality within 10,75 hours.
Uji Beberapa Konsentrasi Ekstrak Rimpang Jeringau (Acorus calamus L.) Untuk Mengendalikan Hama Kutu Daun Myzus persicae Sulzer Pada Tanaman Cabai (Capcicum annum L.)
(2013-07-31) M. Al-Hafiz; Rustam,Rusli; Salbiah, Desita
Myzus persicae Sulzer is a major pest in pepper. Therefore, it is needed the alternative control that is safer and environmentally friendly. One of them is botanical insecticide with sweet flag rhizomes. This study aimed to obtain the right concentration of sweet flag rhizome extract (Acorus calamus L.) to control the pests of peach aphids M. persicae Sulzer in pepper plant. This research was conducted at the Laboratory of Plant Pest and Technical Implementation Unit (UPT) Experimental Farm Faculty of Agriculture, University of Riau for 3 months, from February to April 2012. This study has been conducted using a completely randomized design consisted of 6 treatments (some concentration of sweet flag rhizome extract) and 4 replications in order to obtain 24 experimental units. Each trial consisted of 30 individuals M. persicae Sulzer. Data obtained from the observations were statistically analyzed using analysis of variance, followed by Duncan's New Multiple Range Test (DNMRT). The results of some concentrations of sweet flag rhizome extracts (Acorus calamus L.) test towards the aphids M. persicae Sulzer showed that concentrations 50 g/l water of sweet flag rhizome extract (5%) is an appropriate concentration which is in the range of lethal concentration (LC) 95 that is 4,84-20,72% with total mortality 90,83%.
Uji Beberapa Konsentrasi Metarhizium anisopliae (Metsch) Sorokin Untuk Mengendalikan Hama Kepik Hijau (Nezara viridula L. ) Pada Kacang Panjang (Vigna sinensis L.)
(2013-06-21) Susanti, Unik; Salbiah, Desita; Laoh, J. Hennie
Pest control with usage entomophatogen fungi opportunity was developing as biological control agent for example: Metarhizium anisopliae (Mestch) sorokin. The experiment was conducted in Plant Pest Laboratory from Oktober until Desember 2012. The objective study was to find the better concentration M. anisopliae for control Nezara viridula at long beans plant. The treatment tasted were concentration M. anisopliae 25g /l aquades, 35g /l aquades, 35g /l aquades, 40g /l aquades and 45g /l aquades. The experiment used completely randomized design (CRD) with 5 treatments and 4 replications. The result showed that M. anisopliae could control N. viridula at long beans with 90.00% mortality in concentration 45g /l aquades was 271.50 hours.
Uji beberapa konsentrasi cendawan Entomopatogen Beauveria bassiana vuillemin isolat lokal Untuk mengendalikan kumbang janur kelapa Brontispa longissima gestro (coleoptera : Chrysomelidae)
(2013-01-16) Sutra; Salbiah, Desita; Laoh, J.Hennie
To control pest use an entomophatogen fungi was developed as biological control agent like : Beauveria bassiana. The experiment was conducted in Plant Pest Laboratory at Agriculture Faculty Riau University from October until December 2011. This study aimed to test the ability of some concentrations of local entomopathogenic fungus Beauveria bassiana to control pests of coconut leaf beetle Brontispa longissima Gestro. The research was conducted using completely randomized design (CRD), with 6 treatments and 4 replications in order to obtain 24 units of the experiment. Each experimental unit consisted of 10 adult B. longissima. Treatment consists of concentrations of B.bassiana 0g/l aquadest, 40 g/l aquadest, 45 g/l aquadest, 50 g/l aquadest, 55 g/l aquadest and 60 g/l aquadest. The data obtained were statistically analyzed by analysis of variance and further test with the level 5% of Duncan’s New Multiple Range Test (DNMRT). Parameters observed the initial time of death imago test (hours), lethal time 50% (hours), the percentage of daily mortality (%), percentage of total mortality (%), temperature and humidity as supporting observations. The results showed treatment with a concentration of B. bassiana 55 g/l of aquadest is effective to control B. longissima units percentase of total mortality is 85% during 276 hours.

Browsing by Author "Salbiah, Desita"

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