Garuda - Garba Rujukan Digital

EVALUATION OF NATURAL ENEMIES IN CONTROLLING OF THE BANANA WEEVIL BORER Cosmopolites sordidus Germar IN WEST SUMATRA Hasyim, Ahsol; Azwana, Azwana; Syafril, Syafril
Indonesian Journal of Agricultural Science Vol 10, No 2 (2009): October 2009
Publisher : Indonesian Agency for Agricultural Research and Development - MOA

Show Abstract | Download Original | Original Source | Check in Google Scholar

The banana weevil, Cosmopolites sordidus Germar, is an important pest of highland banana and plantain in Africa, but it exists in low densities in presumed area of origin in Southeast Asia such as in Indonesia. This suggests a possible existence of effective co-evolved natural enemies in the origin area of Indonesia, especially West Sumatra. The objectives of this study were: (1) to evaluate banana weevil pest status at selected sites in West Sumatra, (2) to survey parasitoids and predators, and(3) to determine the control potential of the most important natural enemies. Surveys were undertaken in March 2002-August 2003 in five locations in West Sumatra, i.e., Bukittinggi, Sitiung, Pariaman, Pasaman, and Batusangkar. Five farms per site were selected randomly among all farms that contained banana stands of > 0.5 ha. Sampling for banana weevil adults and damage, and for predators was done throughout small banana stands and within a 20 m x 40 m (0.08 ha) subplot on largerfarms. Field-collected larvae were taken to the laboratory and reared on corm pieces (3 cm x 3 cm x 3 cm) until pupation. Larvae were collected from pseudostem as well as corm residues. To estimate the abundance of non-social predators, i.e., those other than ants, 10 residues each on each farm were examined from plants that had been harvested 1-4 weeks, 5-8 weeks or 9 or more weeks before our visit to the site. Samples of thedifferent morphospecies were saved in alcohol for later identification. The result showed that the banana weevil incidence was found to be low,Â 0.6-1.7 adults per trap. Plant damage indices were below 2.2%. We collected and reared 24,360 eggs and 3118 larvae, but no parasitism was detected. Phorids (Megaselia sp.) and drosophilids were recovered from larval rearings, but most likely were scavengers. A complex of predators was detected, the most important of which was the histerid beetles,Â Plaesius javanus Erichson. In laboratory tests, adults and larvae of P.Â javanus attacked 75-88% and 38-53% of banana weevil larvae and pupae, respectively. Predatory ants, including species of Myrmicinae, Ponerinae, Formicinae, and Dolichoderinae, were found to be associated with bananaplants and residues. Adults of Myopopone castanea Smith (Ponerinae) were directly observed attacking banana weevil larvae in crop residues. The adult banana weevil mortalities caused by the entomopathogen fungi of Beauveria bassiana from Baso, Sungaitarab, Sei Sariek, and Sikabau at highest density (3.2 x 108 spores ml-1) after two weeks were 96.67%, 90.00%, 60.00% and 83.33%, respectively. The high diversity of habitatconditions in which crop-pest-natural enemies systems exist, support the idea that banana weevil population and damage intensity in the study area is low due to active role of natural enemies.

Peranan Kredit Kelompok Petani Kecil Dalam Pembinaan Usaha Sampingan di Kabupaten Deli Serdang dan Langkat Rahmaniah, Rahmaniah; Lubis, Yusniar; Azwana, Azwana
JURNAL AGRICA Vol 4, No 1 (2011): JURNAL AGRICA
Publisher : Universitas Medan Area

The purpose of the study was to determine of benefits, the motivation and the loan success factors to farmers at Deli Serdang and Langkat Regencies. The obligation and duty of government as a provider of facilities and services for the community. The services carried out by the department of technical implementation through their respective programs. This coaching program has output that with the formation of a strong institutional groups can be used by farmers to carry out the joint venture. As a result of the joint efforts of farmers have the additional job as a principal side business of work as small farmers. Thus the direct coaching program has helped local governments in providing jobs for small family farmers in the countryside . The studies had the conclusion that the small farmers who are the target P4K program is farmers who are still under the poverty line income that is equivalent to 320 kg of rice per capita per year. Agricultural extension workers have a responsibility to facilitate lending and repayment , so that no group is unrealized arrears due credit. Local governments are expected to provide special assistance fund for poverty alleviation programs and increasing aid channeled through the BRI was appointed to serve small farmers with specific rules and regulations and absolutely no partisanship on the farmers. Keywords : agricultural extension, credit and poverty.

Analisis Strategi Pengembangan Bahan Tanam Klon Karet Unggul Pada Agribisnis Karet Rakyat di Propinsi Sumatera Utara Asrul, Asrul; Azwana, Azwana
JURNAL AGRICA Vol 6, No 1 (2013): JURNAL AGRICA
Publisher : Universitas Medan Area

Rubber (Hevea brasiliensis Muel Arg.) is a commodity that make country devisa .the goverment have decided the development of national rubber policy from increasing clon using to more than 85% with minimal productivity rate 1500 kg/ha.Purpose of the research is to know the strength/weakness and chance/threat also to analisys the development of rubber clon material for citizen rubber agribuisness in North Sumatera province. North Sumatera province have strength in development of rubber clon material for citizen rubber agribuisness such as have plantation resource, goverment support, rubber farmer resource, and have weakness in seeds resource root stock. Entres resource and the currency control by the charge agency. The cost of the natural rubber is much better now, high request for excellent rubber seeds, in globalisation trading era have chance in development rubber clon material for citizen rubber agribuisness in notrh sumatera province and have threat such as the competition with palm oil commodity, rubber seeds marketing system that not yet efficient also the investation that not fully condusif. The priority strategic in development of excellent rubber clon material for citizen rubber agribuisness in north sumatera province is : 1) rubber entres plantation seeds resource investation and purification entres plantation 2) investation and determine seeds resource plantation for root stock, 3) to build the plantation of rubber entres seeds resource in central location of the contruction for citizen rubber plantation 4) increasing quality seeds control by the charge agency. Key words : excellent clon, rubber entres, rubber agribuisness

Strategi Pengembangan Ubi Kayu di Kabupaten Serdang Bedagai Zuhry, Salman; Miftahuddin, Miftahuddin; Azwana, Azwana
JURNAL AGRICA Vol 5, No 1 (2012): JURNAL AGRICA
Publisher : Universitas Medan Area

The Serdang Bedagai Regency chosen as the research site based on the grounds that the Serdang Bedagai Regency is an area of cassava production center of the second largest in North Sumatra. The formulation of problem in this study were : 1) describing the current state of cassava development in Serdang Bedagai Regency, includes the development of farming and processing industry, market prospects, potential and investment opportunities and policy support. 2) What are the external and internal factors that effect the development of cassava at Serdang Bedagai Regency. 3) What is the right strategy for the development of cassava at Serdang Bedagai Regency. This study uses observations with a research instrument by questionnaires and interviews to collect primary and secondary data. This research is descriptive. The are 5 respondents namely: Head of Department of Agriculture, Kasubdis Production, Agricultural Extension, Chairman of Farmers Group, and academics who were in the area of Serdang Bedagai Regency. Data analyzed using the SWOT analysis to find the right alternative strategies in order development of cassava as raw materials and processed food industry at Serdang Bedagai Regency. The research results obtained the alternative strategies of cassava development strategy priorities are: improve the quality of human resource farmers (STAS mean = 5,840 ), the cassava farmers establish cooperatives as a means of outreach, education, the introduction of technology and access to capital (average STAS = 5,777), conducting the education and training for farmers to increase their knowledge and mastery of technology (STAS mean = 5,774), utilizing the budget autonomy to increase cassava production so as to meet the needs of industry (STAS mean = 5,735), expanding the cassava growing areas (STAS mean = 5,673), the cooperation of the industry in the capital and marketing of cassava farming (STAS mean = 5,571), increasing the intensification of cassava farming in order quality can be competitive and profitable (STAS mean = 5,441), promoting the use of seedlings (clones) excel (STAS mean = 5,263). Keywords: strategic management, strategic factor, matrix IFAS, QSPM

ANALISIS PENGARUII CURAH HUJAN, SUIIU UDARA DAN KELEMBABAN UDARA TERHADAP PRODUKSI JAGUNG DI KABUPATEN LANGKAT Ginting, Natal; Kuswardani, Retna Astuti; Azwana, Azwana
JURNAL AGRICA Vol 5, No 2 (2012): JURNAL AGRICA
Publisher : Universitas Medan Area

Corn is a food that referred the most essential after rice in the lives of people in Indonesia. In addition to human consumption, corn is also an ingredient for the production of animal feed that was active when the noodles into agribusiness mover. However, the issue of development of maize production in Indonesia is still importing noodles and outside negeni to meet domestic needs. Factors Natural Resources (SDA) and the weather elements such as precipitation, air temperature and humidity play a role in influencing the level of productivity of maize.The purpose of the study was to determine the extent of precipitation , air temperature and humidity affect the productivity of maize in the district of Langkat. The benefit is as a source of information and economic development of the agricultural sector, to increase farmers' income and GDP corn Langkat through more effective management system den efficiently on natural resources , weather and climate.Rainfall is ideal for corn is between 100-200 mm per month with distnibusi evenly. Growth of corn plants so the response to sunlight and moisture content in the atmosphere . The combination of weather factors between rainfall, air temperature and humidity ideal will lead to increased productivity of maize over the maximum.Sources of data were taken and the Department of Agriculture Langkat , the Central Statistics Agency (BPS) Langkat, Sampali Climatological Station and Office Center for Meteorology and Geophysics Region I Field. Processing methods with the computer program SPSS version 19 using analysis regeresi linear equations, test "F", test "t", the coefficient of determination R2 and significant . The analysis showed that rainfall , air temperature and humidity have a significant effect on the level of productivity of maize in the region Langkat. Keywords : Elements of weather and productivity of corn.

EFIKASI INSEKTISIDA NABATI EKSTRAK BUNGA KEMBANG BULAN (Tithonia diversifolia A. Gray) TERHADAP HAMA ULAT GRAYAK (Spodoptera litura F.) PADA TANAMAN SAWI DI LABORATORIUM Azwana, Azwana; Mardiana, Siti; Zannah, Rizky Raudatul
BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan) Vol 5, No 2 (2019): Februari
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

Armyworm (Spodoptera litura) is one of the pests that attack vegetable plants in Indonesia. The attack resulted in the leaves of the plant being cut and perforated so as to reduce productivity and even crop failure The aim of the study was to determine effectiveness of Tithonia diversifolia extract as a vegetable insecticide to control the Spodoptera litura in mustard plants at the laboratory. The study used a completely non-factorial randomized design consisting of 5 treatments, K0 = no extract (control), K1 = concentration 4%, K2 = concentration 6%, K3 = concentration 8%, K4 = concentration 10%. Parameters observed were morphological changes and insect behavior, percentage of larval mortality, percentage of pupae and imago formed. The results that Tithonia diversifolia extract can control Spodoptera litura. The result of 8% (K3) Tithonia diversifolia extract effectively controls Spodoptera litura. The highest percentage of larval mortality of Spodoptera litura (80%) was found in the treatment of K3 (concentration 8%) at observation 9 HSA and the lowest mortality was found in K1 (concentration 4% with an average 67.5%. The lowest formation of pupa and imago in the K3 treatment was 20 and 29.17%

Preferensi Spodoptera Frugiperda J.E. Smith pada Berbagai Tanaman Azwana, Azwana
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 5, No 2 (2021): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, Juni
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v5i2.5455

Spodoptera frugiperda (Lepidoptera: Noctuidae) is a pest that boomed in early 2019. The research was conducted descriptively in areas that had never been attacked by S. frugiperda by planting various types of crops such as sweet corn, white corn, hybrid corn, green beans, tomatoes, chilies and sorghum. The results showed that S. frugiperda was very fond of sweet corn, followed by white corn, hybrid corn and sorghum. Green bean, chili and tomato plants were not attacked by S. frugiperda. Pest S. frugiperda began to attack sweet corn plants at 3 weeks after planting with the initial attack in the form of scratches on the leaves and continued to the base / growing point (leaves still curled). Even this pest also attacks the male flowers that have not opened and attacks the sweet corn cobs. S. frugiperda began to attack sweet corn at the age of 20.33 days after planting, on white corn 25.67 days after planting, hybrid corn 25.53 days after planting and sorghum at 28.67 days after planting. In sweet corn, the attack reached the corn cobs, while in white corn and hybrid corn, the attack only showed damage to the leaves, not to the cornflower as well as to sorghum. The percentage of attack on white corn (22.15%) and hybrid corn (18.26%) and on sorghum was only 10.34% less than attack on sweet corn (40.02%).

Respon Pertumbuhan Dan Produksi Jagung Manis (Zea mays saccharata Sturt) Terhadap Pemberian Pupuk Cair Bayprint Dan Sekam Padi Agustiar, Agustiar; L. Panggabean, Ellen; Azwana, Azwana
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 1, No 1 (2016): Jurnal Agrotekma Desember
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v1i1.1102

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pupuk cair Bayprint dan media sekam padi sebagai media tumbuh tanaman terhadap pertumbuhan dan produksi jagung manis. Penelitian dilaksanakan dengan menggunakan Rancangan Acak Kelompok (RAK) faktorial dengan faktor yang diteliti, yaitu: perlakuan sekam padi dan pupuk cair Bayprint. Faktor sekam padi (P) yang terdiri dari: P0 = tanpa sekam, P1 = 2 kg/plot, P2Â = 4 kg/plot dan P3 = 6 kg/plot.Â Faktor pupuk cair Bayprint (B) yang terdiri dari: B0 = tanpa pupuk cair Bayprint, B1 = 1 cc/l air, B2 = 2 cc/l air danÂ B3 = 3 cc/l air. Parameter yang diamati adalah tinggi tanaman, diameter batang, jumlah daun, panjang tongkol, dan berat tongkol per plot. Hasil penelitian menunjukkan bahwa perlakuan sekam padi hingga dosis 6 kg/plot dapatÂ meningkatkan tinggi tanaman, diameter batang, panjang tongkol, berat tongkol per tanaman, tetapi tidak berpengaruh terhadap jumlah daun tanaman jagung manis. Perlakuan pupuk cair Bayprint hingga konsentrasi 3 cc/l air dapatÂ meningkatkan tinggi tanaman, diameter batang, panjang tongkol, berat tongkol per tanaman, tetapi tidak berpengaruh terhadap jumlah daun tanaman jagung manis. Tidak ada interaksiÂ antara sekam padi dan pupuk cair Bayprint terhadap semua parameter yang diamati.

Hama Lalat Buah (Bactrocera dorsalis Hendel) Dan Preferensi Peletakan Telur Pada Tingkat Kematangan Buah Belimbing di Desa Tiang Layar Kecamatan Pancur Batu Sumatera Utara Wulan Sari, Dewi; Azwana, Azwana; Pane, Erwin
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 1, No 2 (2017): Jurnal Agrotekma Juni
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v1i2.1128

Tujuan penelitian ini untuk mengetahui jenis lalat buah pada tanaman belimbing dan untuk mengetahui tingkat kematangan buah belimbing yang paling di sukai oleh hama lalat buah. Penelitian menggunakan Rancangan Acak Non Faktorial terdiri dari limaÂ perlakuan tentang kriteria buah yaitu: a) Buah belimbing manis berwarna hijau tua (indeks 1), b) Buah belimbing manis berwarna hijau sedikit kuning (indeks 2), c) Buah belimbing manis berwarna hijau kuningan (indeks 3), d) Buah belimbing manis berwarnakuning kehijauan, kulit buah kuning dengan sedikit hijau (indeks 4), e) Buah belimbing manis berwarna kuning kehijauan, kulit buah berwarna kuning dengan sediki hijau bagian rusuk/lingir (indeks 5). Hasil penelitian : a) Jenis lalat buah yang masuk ke dalam perangkap dari minggu pertama sampai minggu ke empat yaitu Bactrocera dorsalis, populasi lalat buah dari pengamatan minggu pertama sebanyak 203 lalat buah, terus meningkat sampai pengamatan minggu ke empat sebanyak 229 lalat buah. b) Lalat buah paling banyak meletakkan telur pada buah belimbing manis berwarna kuning kehijauan, kulit buah kuning dengan sedikit hijau pada perlakuan (D) c) Jumlah larva lalat buah 3-12 larva paling banyak di jumpai pada buah dengan tingkat kematangan (D).

Pertumbuhan Dan Produksi Tanaman Cabai Merah (Capsicum annum L.) Terhadap Pemberian Pupuk Organik Pada Berbagai Media Tanam Babara Dalimunthe, Muhajir; L. Panggabean, Ellen; Azwana, Azwana
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol 2, No 1 (2017): Jurnal Agrotekma Desember
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v2i1.1101

Tujuan penelitian ini adalah mengetahui respon pertumbuhan dan produksi tanaman cabai merah (Capsicum annum L.) di berbagai media tanam dan pemberian pupuk organik. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) Faktorial yang terdiri dari dua faktor. Faktor pertama adalah pemberian pupuk Tiens Golden Harvest (notasi H) terdiri dari 4 taraf, yaitu: Ho =Â pupuk dasar,Â H1 = 0,5 l/ha, H2 = 1 l/ha dan H3 = 1,5 l/ha.Â FaktorÂ kedua adalah pemberian sekam padi dan arangÂ (notasi P) terdiri dari 3 taraf, yaitu: Po = 100 % tanah (sebagai kontrol), P1 = Tanah : Sekam Padi = 3 : 2 dan P2 = Tanah : Arang = 3 : 2. Parameter yang diamati dalam penelitian ini adalah:Â tinggiÂ tanaman,Â jumlah cabang, umur panen dan berat produksi per plot. Hasil penelitian menunjukkan bahwa perlakuan dosis pupuk Tiens Golden Harvest dapat meningkatkan tinggiÂ tanaman, jumlah cabang, berat produksi per plot, dan mempercepat umur panen. Perlakuan media tanam dengan penambahan sekam padi dapat lebih meningkatkan tinggi tanaman, jumlah cabang dan berat produksi per plot, tetapi tidak dapat mempercepat umur panen, dibandingkan dengan yang menggunakan penambahan arang. Interaksi antara dosis pupuk Tiens Golden Harvest dan media tanam berpengaruh tidak nyata terhadap semua parameter yang diamati.

Title

Found 10 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 10 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 10 Documents
Search