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TUMBUHAN LIAR RAWA MANGROVE SEBAGAI INSEKTISIDA NABATI TERHADAP HAMA KROP KUBIS DI LAHAN RAWA PASANG SURUT S, Asikin; Melhanah, Melhanah
AgriPeat Vol. 21 No. 01 (2020): JURNAL AGRIPEAT VOLUME 21 NOMOR 01, MARET 2020
Publisher : Fakultas Pertanian Universitas Palangka Raya

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Mangrove plants that usually grow on tidal swampland are very important as water storage as well as wave retention. Also, these kinds of plants are developed potentially as one source of natural insecticide. The use of botanical insecticide will reduce environmental pollution due to excessive use of chemical pesticides. The study purpose is to determine the effectiveness of extraction from several species of mangrove plants that act potentially as natural insecticides to control cabbage pests in tidal swamplands. The study was carried out using a complete randomized design, 4 treatments and 3 controls (i.e. chemical insecticides, botanical insecticide, and without insecticide), with 5 replications. The results showed that the mangrove species extract of buta-buta, bakau and jeruju as botanical insecticide was effective against cabbage crop pest, with value of average death of caterpillar in range from 86.00 to 86.67%.

KOMUNITAS ARTHROPODA PADA AGROEKOSISTEM JAGUNG MANIS DAN KACANG PANJANG DENGAN DAN TANPA PERLAKUAN INSEKTISIDA DI LAHAN GAMBUT Melhanah, Melhanah; L, Supriati; D, Saraswati
AgriPeat Vol. 16 No. 01 (2015): JURNAL AGRIPEAT VOLUME 16 NOMOR 01, MARET 2015
Publisher : Fakultas Pertanian Universitas Palangka Raya

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The purpose of the study was to determine the arthropod communities treat and untreated chemical insecticides on crops of sweet corn and long bean crop in peatland, Kalampangan. The experiment was conducted in area of 210 m2 and divided into 12 experimental plots (each plot was 12 m2). Sampling and sample observations carried out at 2-8 weeks after planting. Sampling using a sweep net to arthropods which are in the crown area and pitfall traps for arthropod at ground level area. On the sweet corn and long bean crop, the results showed arthropods are more common in crop of untreated chemical insecticide than that treated insecticide. Guilds between fitofag, natural enemies of predators and parasitoids and neutral arthropod interaction has occurred

POTENSI EKSTRAK GALAM SEBAGAI INSEKTISIDA NABATI TERHADAP HAMA KROP KUBIS (Crocidolomia pavonana) SKALA LABORATORIUM S., Asikin,; Melhanah, Melhanah
AgriPeat Vol. 21 No. 2 (2020): JURNAL AGRIPEAT VOLUME 21 NO. 02 SEPTEMBER 2020
Publisher : Fakultas Pertanian Universitas Palangka Raya

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In an effort to increase crop production often faced with pest attacks. Major losses resulting in crop failure can occur if the disturbance is not handled properly. The yield loss due to Crocidolomia pavonana cabbage crop pests is quite high reaching 80%. This pest is often found in every planting season of mustard plants. In addition, this pest is also spread quite widely in dry land and wetlands (tidal swamps and lowland swamps). Pests are generally controlled by chemical insecticides. Excessive use of chemical insecticides will have a negative impact on the environment such as resistance, and killing of natural enemies of pests. As an alternative, plant extracts can be used as natural insecticides in controlling this pest. The purpose of this study was to determine the effectiveness of galam extracts against pest cabbage plants C.pavonana. The study was conducted at the Laboratory of Pests Disease Research Institute for Swamp Farming Banjarbaru, South Kalimantan in March - September 2018. This study uses a completely randomized design with 3 treatments with plant extracts, 3 treatments without control, and 5 repetitions each. Each treatment uses 15 larvae of C. pavonana instar 2 on fresh mustard leaves. Botanical insecticide is formulated by dissolving solid extracts. The results showed that the use of galam extract can suppress cabbage crop pests with a mortality rate reaching 90.67%

APLIKASI INSEKTISIDA NABATI BERBAHAN TANAMAN RAWA UNTUK MENGENDALIKAN HAMA KEDELAI ULAT GRAYAK (Spodoptera litura) DI LAHAN RAWA PASANG SURUT Asikin, Syaiful; Melhanah, Melhanah; Lestari, Yuni
AgriPeat Vol. 22 No. 01 (2021): JURNAL AGRIPEAT VOLUME 22 NO. 01 MARET 2021
Publisher : Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/agp.v22i01.3311

One type of pest that often attacks soybean plant leaves in tidal swamplands is the armyworm pest. The intensity of leaf damage due to armyworm attack in tidal swamps ranges from 30-95%, and can even lead to crop failure. In controlling pests in soybean plants in general, always rely on chemical insecticides. The use of these chemical insecticides has a negative impact on the environment. To overcome this, the control is directed towards environmentally friendly pest control by utilizing swamp plants as a botanical insecticide. The study used a randomized block design (RBD) with 3 treatments of swamp plant extracts (galam, kirinyuh, kepayang) and 3 controls, namely without control, botanical insecticide made from neem, chemical insecticide with the active ingredient kloraniliprol. The aim of this study was to obtain a swamp plant extract that could be used in controlling armyworm pests (Spodoptera litura). The results showed that the three types of swamp plants could be used as botanical insecticides in controlling armyworm pests, and has an effectiveness value above 70%. The highest effectiveness of botanical insecticides was obtained at the age of 75 DAP, namely Galam (78.29%), Kirinyuh (78.86%) and Kepayang (78.85%).

EFEKTIVITAS EKSTRAK TUMBUHAN RAWA SEBAGAI INSEKTISIDA NABATI TERHADAP HAMA ULAT TRITIP PlutellaXylostella SKALA LABORATORIUM : (Effectiveness Of Swamp Plants Extract As A Botanical Insecticide on Diamondback Moth Plutella Xylostella Laboratory Scale) Syaiful Asikin; Melhanah, Melhanah
AgriPeat Vol. 24 No. 1 (2023): JURNAL AGRIPEAT
Publisher : Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/agp.v24i1.5593

ABSTRACT Diamondback Moth (Plutella xylostella) can attack the shoots and leaves of plants belonging to the Cruciferae family (cabbage, mustard greens, caisin) from seedling to harvesting. The part of the plant that it attacks is the leaf with symptoms of holes. In general, in controlling pests, farmers always partner with chemical insecticides, while in the concept of integrated pest management (IPM), the use of chemical insecticides is the last alternative. To overcome this, pest control is directed to the use of plants as botanical insecticides. From the research, it was found that 9 types of swamp plants had a value of 84.00% that killed the tritip caterpillar, and 3 types that killed 81-82%. The LD50 value of the caterpillar in 10 swamp plant species was classified as moderately toxic (Galam, Cambai Karuk, Gandarusa grass, Pegagan grass, Tawar, Tegari, Melinjo, Kipahit, Maja and Tapak Liman), and 3 other types of swamp plants were mildly toxic ( Jingah, Bidara and Tanduk Rusa). Thus, it is necessary to preserve swamp wild plants so that these plants do not become extinct. Keywords: Plutella xylostella, swamp plant, botanical insecticide,

EKSPLORASI JAMUR AGENS HAYATI DARI RHIZOSFIR DI LAHAN GAMBUT DENGAN POLA TANAM YANG BERBEDA: Exploration of Fungal Biological Agents from the Rhizosphere in Peatlands with different Planting Patterns Supriati, Lilies; Melhanah, Melhanah; Oemar, Oesin; Milenia, Safhira
AgriPeat Vol. 24 No. 2 (2023): JURNAL AGRIPEAT
Publisher : Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/agp.v24i2.8658

There are several ways of cultivating crops that are applied by the community, namely: monoculture, insertion and agroforestry. Differences in the application and management of cropping patterns and the types of plants planted will have a different effect on microbes in the rhizosphere, especially fungi as biological agents. The purpose of this study was to determine the types of fungal biological agents found in the rhizosphere of several plants with different cropping patterns on peatlands. The location of the samples was determined purposively with insert cropping patterns (mustard-sweet corn), mono-culture (sweet corn) and agroforestry (jelutung-soursop). Testing the inhibition of biological agent fungi against Sclerotium rolfsii used a completely randomized design consisting of 7 treatments with 3 replications. The exploration results obtained 7 isolates of biologically active fungi that could inhibit S. rolfsii. The highest inhibition was shown by isolates JSk1 (origin from the rhizosphere of soursop plants), isolates J (origin from the rhizosphere of sweet corn) and JS1 (origin of the rhizosphere of mustard greens). JSk1 and J isolates had an inhibition close to 60%. The results of the identification of JSk1 isolates were the fungus Gliocladium sp1, isolate J the fungus Trichoderma harzianum with competitive inhibitory mechanisms, mycoparasites, antibiosis causing host hyphae to experience malformation, lysis and destruction.

PENGARUH JARAK DARI SALURAN DRAINASE TERHADAP FLUKTUASI MUKA AIR TANAH DAN SIFAT FISIK TANAH GAMBUT PEDALAMAN DI TUMBANG NUSA - KALIMANTAN TENGAH: THE IMPACT OF DISTANCE FROM DRAINAGE CHANNELS ON GROUNDWATER LEVEL FLUCTUATIONS AND PHYSICAL PROPERTIES OF INLAND PEAT SOILS IN TUMBANG NUSA, CENTRAL KALIMANTAN Adji, Fengky Florante; Hutahaean, Sri Devi; Melhanah, Melhanah; Amelia, Vera
AgriPeat Vol. 25 No. 01 (2024): JURNAL AGRIPEAT Vol. 25 No. 01 Maret 2024
Publisher : Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/agp.v25i01.12603

Indonesia is a country that has the largest peat area in the tropics, estimated at 21 million ha. This research aims to determine the effect of the distance from the drainage channel on fluctuations in groundwater levels (water table) and physical properties of peat soil in different land cover conditions with open land planted with Rambutan trees (N. lappaceum) and bush land growing ferns (Pteridophyta) and Bajakah. (S. littoralis). This research was carried out from August to October 2023 in Tumbang Nusa Village, Jabiren Raya Subdistrict, Pulang Pisau Regency, Central Kalimantan Province and the UPT. LLG-CIMTROP Laboratory, University of Palangka Raya. Firstly take n 1 (one) whole soil sample (undisturb) and taken ± 1 kg by using a ring with a depth of 0-20 cm and measure the physical properties of the soil 4 (four) times, once every 2 (two) weeks at each sampling point peat. The method used in the research is purposive sampling, namely a sampling method with certain considerations in 4 (four) plots each with different land cover. Data is processed using Microsoft Excel 2021 for Windows which will be presented in the form of tables and graphs. The results of groundwater level measurements in the field show a weak relationship, a very weak relationship and a fairly strong relationship between the physical properties of peat soil in different land cover conditions. The relationship between ground water level (water table) and volumetric weight, water content and temperature are cubic and positive. The relationship between ground water level (water table) and particle density and humidity in different land conditions shows a negative cubic relationship. From testing the soil properties, the cumulative effect is volume weight (bulk density), temperature and water content, where the R2 value for volume weight is 0,4518 and temperature is 0,56. Then the water table is influenced by the distance from drainage canal. Keywords: Peat soil, water table, physical properties, land use, drainage canal, and environmental factors

EFEKTIVITAS SEED COATING BERBAHAN AKTIF JAMUR ANTAGONIS MENGENDALIKAN PENYAKIT REBAH KECAMBAH PADA BIBIT CABAI Mulyani, Rahmawati Budi; Riak Asie, Erina; Oemar, Oesin; Melhanah, Melhanah; \Damayanti, Rima
Jurnal Penelitian Pertanian Terapan Vol 24 No 1 (2024)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v24i1.3301

This study aims to determine the inhibitory ability of antagonistic fungi from the rhizosphere of pepper (Piper nigrum L.), betel nut (Piper bettle L.) and Bawang Suna (Allium cinense G.Don.) against Fusarium oxysporum capsici which causes damping off disease and its effectiveness as a seed coating against damping off disease in chili seedlings. The research was carried out in the laboratory and experimental garden of the Department of Agricultural Cultivation, Faculty of Agriculture, UPR. Testing the antagonistic inhibition of F.o.capsici in vitro, where the antagonistic fungus with the highest inhibition from each plant rhizosphere was used as a seed coating for chili seeds to determine its effectiveness in suppressing damping off disease on seedlings. The results of the study obtained nine antagonist fungi with very good inhibition against the pathogen F.o.capsici in vitro ranging from 70.36 – 77.74%. Three types of antagonistic fungi that are used as active ingredients in seed coatings are Gliocladium sp. from pepper rhizosphere (73.53% inhibition), Penicillium citrinum from betel rhizosphere (77.74% inhibition), and Trichoderma harzianum from suna onion rhizosphere (70.83%). The seed coating treatment with active ingredients from three types of biological agents significantly reduced the intensity of damping off disease (0%) compared to the control (23.75%). Control effectiveness reaches 100% with very good category. Seed coating with active ingredients of T. harzianum and Gliocladium sp was able to increase plant height by 34.06% and 43.11%, respectively, but there was no significant difference in increasing the number of leaves. Seed coating treatment with biological agents effectively protects seeds and plant seedlings from attack by pathogens F.o. capsici through mechanisms such as antibiosis, parasitism and competition, besides that rhizosphere fungi can induce plant resistance and produce growth regulators which can increase the growth of chili seedlings. It is hoped that in the future the seed coating treatment added with biological agents can replace the use of chemical pesticides in controlling soil-infected diseases

Pathogenicity of Indigenous Entomopathogen Liquid Formulation to Paddy Bugs Nymphs (Leptocorisa acuta Thunberg) Mulyani, Rahmawati Budi; Melhanah, Melhanah; Advianto, Petrayadi; Djaya, Adrianson A
Akta Agrosia Vol 25 No 1 (2022)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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The purpose of this study was to determine the effectiveness of bio insecticide liquid formulations made from indigenous entomopathogens against paddy bugs nymphs. The study used a non-factorial Complete Randomized Design with 9 treatments and 1 control with five replications. The treatments studied consisted of E0: Control, E1: Beauveria sp Pky isolate + coconut water (CW), E2: Metarhizium sp isolate Jjt + AK, E3: Beauveria sp isolate Jts + CW, E4: Metarhizium sp isolate Lcc + CW, E5: Beauveria sp Pky isolate + shrimp shell extract (SSE), E6: Metarhizium sp isolate Jjt + SSE, E7: Beauveria sp isolate Jts + SSE, E8: Metarhizium sp isolate Lcc + SSE, E9: Synthetic insecticide b a Carbamate (Dharmabas 500 EC 2 ml L-1). The result showed that liquid bioinsecticide formulations were effective against mortality, infected nymphs and nymph death time. All entomopathogenic fungi isolates were able to cause infections in paddy bugs nymphs of 68% - 84%. Beauveria sp Pky isolate and Metarhizium sp isolate Jjt caused nymph mortality of 72% - 84% and the effectivity did not differ from insecticide b.a. Carbamate. Conidia viability of all entomopathogenic isolates in liquid media within 24 hours reached more than 80%. The fastest time to death of paddy bugs nymph occurred at 5.44 days ( Metarhizium sp. isolate) and 5.92 days (Beauveria sp. isolate) in coconut water media. Metarhizium sp. and Beauveria sp. in the medium of coconut water or shrimp shell extract has a very high potential to be developed as a bio insecticide, but it still needs to be further tested for its effectiveness in field conditions.Keywords: indigenous entomopathogen, coconut water, shrimp shell extract, paddy bugs nymph

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