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Bariyah Baringbing
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Library & Information Science

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STUDIES ON HIDARI IRAVA LEAF CONSUMPTION IN RELATION TO WARNING SYSTEM IN THE CONTROL OF THE COCONUT PEST Wily A. Baringbing; Bariyah Baringbing
International Coconut Community Journal Vol 9 No 02 (1993): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v9i02.273

Abstract

Two‑month laboratory and field experiments were carried out to investigate amount of leaflet consumed by the leaf‑eating caterpillar. Hidari irava Moore, during the larval stadium in an effort to determine the right time to control the pest chemically. The experiment was conducted in Pakuwon Experimental Garden, West Java, Indonesia in 1990. A total of 70 larvae of the hesperiid were reared in laboratory. Mature coconut leaflets replaced daily with fresh material. Were cut arid measured for food of the caterpillars in glass containers. Fifty mature hybrid coconuts, Malayan Red Dwarf (MRD) x West African Tall (WAT), were studied to calculate the leaflet weight of each leaf. A leaf was cut from each palm. There were 50 leaves used altogether. Results of the study showed that a single larva, from the second to fifth instars, consumed 13.90 g coconut leaflet. Weight of leaflets per leaf was 2,562.79 g and 66,455.29 g per tree. A population of 18.43 larvae per leaf caused 10% damage to the crown of a palm tree.
STUDIES ON HOST PREFERENCE OF PARASA LEPIDA ON SOME CULTIVARS OF HYBRID COCONUT IN SWAMPY AREA Wily A. Baringbing; Bariyah Baringbing
International Coconut Community Journal Vol 10 No 02 (1994): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v10i02.284

Abstract

A two‑month f ield experiment to study host preference of the leaf‑eating cater­pillar, Parasa lepida cramer, on 5 cultivars of hybrid coconut: Green Khina‑1, Brown Khina‑1, Nias Yellow Dwarf (NYD) x West African Tall (WAT),. Malayan Red Dwarf (MRD) x WAT, and Camerun Red Dwarf (CRD x Rennel Tall (RLT), aged 2.5 years, was carried out in swampy area of South Sumatra province, in 1991. A number of 30 palms, taken at random, from each block of the above mentioned hybrids were studied. Hence, there were 1SO trees observed altogether. The population of larvae per leaf as well as their dwellings in the fronds were recorded to investigate age of leaf consumed. Results of the study showed that none of the hybrids were resistant to P. lepida larvae. Cultivar of NYD x WAT was attacked more followed by Green Khina‑1, NYD x WAT, CRD x RLT, and Brown Khina ‑ 1. Leaves of half matures of all hybrids were preferred compared to those of the others.
EFFECTS OF ENVIRONMENT CONDITION ON THE POPULATION OF BRONTISPA LONGISSIMA GESTRO AND ITS PREDATOR CHELISOCHES SPP. IN NORTH LAMPUNG Willy A. Baringbing; Bariyah Baringbing
International Coconut Community Journal Vol 12 No 02 (1996): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v12i02.302

Abstract

A field study to investigate the effects of environment conditions on the population density of the coconut hispid Brontispa longissima Gestro and its predotor Forficulid Chelisoches spp. was carried out in Sin ar Saerang mandiri (SSM) coconut plantation and its surrounding area, North Lampung, in May 1993. 120 trees taken at random with 1,200 still folded leaflets in 4 locations, 300 palms each, in the SW garden were observed. Another 120 trees, also taken at random, in similar patterns as that of the S.W were studied. Chemical treatments were conducted regularly in the XSM area but none in the surrounding area. Results of the study showed that B. Longissma and its predator Chelisoches populations were found to be higher in the S.W.' garden than that of the surrounding coconut plantation. Those species of Chelisoches outside the garden and only one inside the area.
STUDIES ON CHELONUS SP. THE PARASITE OF THE COCONUT MOTH BATRACHEDRA ARENOSELLA WALKER Wily A. Baringbing; Bariyah Baringbing
International Coconut Community Journal Vol 13 No 01 (1997): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v13i01.308

Abstract

An experiment was conducted at a coconut pest laboratory at Nita, elevation 250 m, Sikka regency, Flores island, province of East Nusa Tenggara, to study mass production of Chelonus parasite by using Phthorimaea operculella Zeller as its host, in an effort to control the coconut moth, Batrachedra arenosella Walker, biologically. Results of the experiment showed that the parasite could be produced in laboratory by using P. operculella as the host and a 10% solution of honey as food for both parasite and the adult host. A female parasite gave an average of 14 offspning during their lives with a sex ratio of 2.27:1, between male and female. The sex ratio of the same parasite in the field with B. arenosella as its host was 1:1. The incubation period of the parasite in laboratory was 26 days for males and 27 days for females. The sex ratio of the moth in the field as 1: 1.26.
STUDIES ON PESTS IN 4 COCONUT CULTIVARS IN LAMPUNG PROVINCE Wily A. Baringbing; Bariyah Baringbing
International Coconut Community Journal Vol 14 No 01 (1998): CORD
Publisher : International Coconut Community

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37833/cord.v14i01.315

Abstract

A three‑year field study to investigate species of pests on four (4) coconut cultivars: PB‑1 21, PB‑111, KH17VA‑1 and dwarf Salak, was carried out in Lampung province involving 11 visits from November 1991 to April 1993. Only two regencies: Lampung Utara and Lampung Tengah with 3 and l sub‑districts, respectively were surveyed But only three sub‑districts of Lampung Utara: Sungkai Selatan, Manggala and Mesuji and only Terbanggi Besar in Lampung Tengah were studied Observations of Brontispa longissima Gestro, Plesispa reichei Chapuis, Oryctes rhinoceros Linnaeus, Xylotropus Gideon (Linnaeus), Rhynchophorus vulneratus (Panzer), and the others were studied. Results of the study showed that no cultivars were resistant to any species of pests in Lampung province. There were 19 species of pests, 2 of which do not belong to the insect present in the 2 regencies. The 17 species of insects belong to 4 orders including: Coleoptera, Lepidoptera, Homoptera and Orthoptera in 3, 5, 1 and l families, respectively.
IDENTIFIKASI KOMPONEN KIMIA MINYAK DAUN SALAM (Eugenia polyantha) DARI SUKABUMI DAN BOGOR B. Sofianna Sembiring; Christina Winarti; Bariyah Baringbing
Buletin Penelitian Tanaman Rempah dan Obat Vol 14, No 2 (2003): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v14n2.2003.%p

Abstract

Daun salam mengandung minyak atsiri yang dapat digunakan dalam industri obat-obatan, makanan dan parfum. Lingkungan yang berbeda berpengaruh terhadap rendemen minyak yang dihasilkan. Penelitian untuk mengidentifikasi senyawa yang terdapat pada minyak daun salam telah dilakukan di Laboratorium Fisiologi Hasil Balai Penelitian Tanaman Rempah dan Obat dari bulan Maret sampai Agustus 2001. Tujuan penelitian adalah untuk mengetahui komponen minyak daun salam dari Sukabumi dan Bogor. Bahan diperoleh dari kebun petani di daerah Bogor pada ketinggian tempat 225 m dpl, curah hujan 3000 - 4000 mm/th, jenis tanah latosol kemerahan dan dari Sukabumi, pada ketinggian tempat 450 m dpl, curah hujan 3000 - 4000 mm/th, jenis tanah latosol kehitaman. Jenis atau tipe tanaman salam dari kedua daerah tersebut secara morfologi kelihatan sama. Penyulingan dilakukan selama 10 jam setelah daun dikeringangin-kan pada suhu ruangan selama 3 hari. Kadar air daun salam saat disuling adalah 16,21%. Minyak atsiri yang dihasilkan dianalisis dengan GC-Mass Spectrometer (Shimadzu). Hasil analisis menunjukkan, bahwa rendemen minyak daun salam dari Sukabumi lebih besar daripada Bogor, masing-masing 0,023% dan 0,018%. Komponen kimia yang terdapat pada kedua minyak tersebut menunjukkan pola yang sama, hanya berbeda dalam limpahannya. Beberapa komponen kimia minyak yang berasal dari Sukabumi menghasilkan limpahan yang lebih tinggi dibandingkan dengan minyak yang berasal dari Bogor.
IDENTIFIKASI KOMPONEN KIMIA MINYAK DAUN SALAM (Eugenia polyantha) DARI SUKABUMI DAN BOGOR B. Sofianna Sembiring; Christina Winarti; Bariyah Baringbing
Buletin Penelitian Tanaman Rempah dan Obat Vol 14, No 2 (2003): BULETIN PENELITIAN TANAMAN REMPAH DAN OBAT
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/bullittro.v14n2.2003.%p

Abstract

Daun salam mengandung minyak atsiri yang dapat digunakan dalam industri obat-obatan, makanan dan parfum. Lingkungan yang berbeda berpengaruh terhadap rendemen minyak yang dihasilkan. Penelitian untuk mengidentifikasi senyawa yang terdapat pada minyak daun salam telah dilakukan di Laboratorium Fisiologi Hasil Balai Penelitian Tanaman Rempah dan Obat dari bulan Maret sampai Agustus 2001. Tujuan penelitian adalah untuk mengetahui komponen minyak daun salam dari Sukabumi dan Bogor. Bahan diperoleh dari kebun petani di daerah Bogor pada ketinggian tempat 225 m dpl, curah hujan 3000 - 4000 mm/th, jenis tanah latosol kemerahan dan dari Sukabumi, pada ketinggian tempat 450 m dpl, curah hujan 3000 - 4000 mm/th, jenis tanah latosol kehitaman. Jenis atau tipe tanaman salam dari kedua daerah tersebut secara morfologi kelihatan sama. Penyulingan dilakukan selama 10 jam setelah daun dikeringangin-kan pada suhu ruangan selama 3 hari. Kadar air daun salam saat disuling adalah 16,21%. Minyak atsiri yang dihasilkan dianalisis dengan GC-Mass Spectrometer (Shimadzu). Hasil analisis menunjukkan, bahwa rendemen minyak daun salam dari Sukabumi lebih besar daripada Bogor, masing-masing 0,023% dan 0,018%. Komponen kimia yang terdapat pada kedua minyak tersebut menunjukkan pola yang sama, hanya berbeda dalam limpahannya. Beberapa komponen kimia minyak yang berasal dari Sukabumi menghasilkan limpahan yang lebih tinggi dibandingkan dengan minyak yang berasal dari Bogor.
Co-Authors B. Sofianna Sembiring Christina Winarti Willy A. Baringbing Wily A. Baringbing