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PEST Tropical Journal
Published by Universitas Riau
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 14 Documents
 1   2 
Pengaruh Suhu Lingkungan Terhadap Inisiasi Terbang Parasitoid Telur Trichogrammatoidea cojuangcoi Nagaraja (Hymenoptera: Trichogrammatldae) Salblah, Desita
PEST Tropical Journal Vol 1, No 01 (2003)
Publisher : PEST Tropical Journal

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The objective this research is to obtain information about the effect of environmenttemperature toward flight inisiation egg parasitoid. The experiment use tool likePrasad ef a/. (1999) method wich a PVC cylinder with measurement of high cylinderis 30 cm and diameter cylinder is 7,5 cm. This experiment arranged in a randomizedcomplete design with three environment temperature (13, 18 & 28 °C ). Flightinisiation consist of short flight (8-10 cm) and far flight (20-30 cm). The results showedsum of adult flight inisiation of short flight reduce at increase temperature but sumof adult flight inisiation of far increase at increase temperature
Peledakan Penyakit Karat Merah Alga Pada Tanaman Gambir (Uncaria gambii) Di Babat Tomat, Sumatera Selatan
PEST Tropical Journal Vol 1, No 01 (2003)
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An algal red rust disease was found occuring on all observed tree of three hagambir plantings in Babat Toman Region, South Sumatra during dry season in 2002.The disease is caused by the green alga Cephaleuros sp. of the familyTrentepholiaceae and the division Clorophyta. The algae causes mild leaf spots onyoung trees (7 months-old). On old trees (9 years-old), the algae was found infectingmore severily, causing severe defoliations and dead of twigs and branches. Thisoutbreak may be induced by the low soil fertility, dryness, over-harvesting, and poorsanitation.
Uji Beberapa Dosis Pseudomonas fluorescens untuk Pengendalian Penyakit Rebah Kecambah (Sclerotium rolfsii) Pada Bibit Cabe
PEST Tropical Journal Vol 1, No 01 (2003)
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The test of dosages of Pseudomonas fluorescensto control the damping-off caused Sclerotium rolfsii on pepper, Nasrun and Rustam. The experiment was conducted atLaboratory of The Assessment institute of Agricultural Technology and Screen houseof Food Crop Service of Riau Province from April to July 2003. The objective of theexperiment was to determine the best dosage of Pseudomonas fluorescensto con-trol the damping-off caused Sclerotium rolfsii on pepper. The experiment used ran-domized complete design with five treatment and five replications. The dosages ofPseudomonas fluorescens introduced to the soil were 0,5; 1; 2; 4 ml/1 and control.The results showed that the higher the dosage of Pseudomonas fluorescens intro-duced, the better effective to control the damping-off on pepper.
Penggunaan Beberapa Jamur Antagonis Untuk Menekan Pertumbuhan Jamur Sclerotium Rolfsii Sacc. Penyebab Penyakit Rebah Kecambah Bibit Cabe Yulfida, Ade
PEST Tropical Journal Vol 1, No 01 (2003)
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Using of some antagonists fungi to control Sclerotium rolfsii Sacc caused damping-off ofpepper, Ade Yulfida and Rustam. The experiment was conducted at Laboratorium of As-sessment Institute of Agricultural Technology and Screen House of Food Crop Service ofRiau Province, in March to June 2003. Two stage of assessments were in laboratory andscreen house. The experiment consisted of four treatments with five replications in com-pletely randomize design. T h e four treatments were A=Trichoderma harzianum, B =Tricfioderma coningii, C = Gliocladium sp and D = control (Sclerotium rolfsii S a c c ) . Theresult showed that antagonists fungi used were effectively control damping-off of peppercaused Sclerotium rolfsiiSacc. Using fungus of Trichodenna harzianumNasthebesWteaLl-ment in controlling damping-off pepper.
Pengujian Beberapa Konsentrasi Bacillus thuringiensis Berliner dalam Mengendalikan Hama Ulat Daun Selada (Lactuca sativa) Laoh, Jeltje Hennle; Fauzana, Hafiz
PEST Tropical Journal Vol 1, No 01 (2003)
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Field study of using Bacillus tiiuringiensisto control lettuce leaf worms conducted atfarmers Gardening area in Simpang Baru Panam Pekanbaru. The objectives of thisstudy was to evaluate the response of the lettuce leaf worms to the different level ofB. thuringiensis concentration. Arranged in Randomized Block Design with fourtreatments (concentration of B. thuringiensis 0.0 %, 0.1 %, 0.2 %, and 0.3 %) and fourreplications. The results indicated that there are significant differences In responsto the level of B. thuringiensis concentration (0.0 %, 0.1 %, 0.2 %, and 0.3 %.). Thisindicated also, that B. thuringiensis could be used to control lettuce leaf worms.The effective concentration to control lettuce leaf worms are 0.2 % and 0.3 %.
Persebaran Populasi Aphis craccivora Koch (Homoptera:Aphididae) di Tanaman Kacang Tanah pada Kondisi Air Tanah Tersedia yang Berbeda Sutikno, Agus
PEST Tropical Journal Vol 1, No 01 (2003)
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The objectives of this study were to determine the population density of A .craccivora and its dispersion on groundnut plant under different soil water availabitiles. the study was conducted in a greenhouse of Crop and Horticultural Plant Protection Institute Region III, Palembang since August to November 2001 using corrpletely randomized design with four levels of soil water availabilities and four replications. Each replication consisted of two plants, which were planted on different black, polyvinyl bag. The treatments were 40, 60, 80, and 100% soil water availabitiles The results showed that types of dispersion of A. craccivora on the whole part of groundnut planted on all soil water availabilities tested were similat n, each other. The population was found higher on young leave and bud leave, then followed on leaf stalk, f lower/gynophore, and stem respectively. The differences in the length of leaft trachoma , number of stem trichoma, and water content of leave and stem were the determinant factors, which influenced the population of A. craccivora on leave and stem in the maximum of population density.
Deteksi Awal Senyawa Antimikroba yang Dihasilkan Jamur Trichoderma harzuanum Elfina.S, Yetti; Bachtiar, Amri
PEST Tropical Journal Vol 1, No 01 (2003)
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The research was conducted to early detection antimicrobial compound producedby Trichoderma harzianum fungi on March 2003. T. harzianum cultured during 7 daysat temperature 25-30°C and shake velocity at 180 rpm. The secondary metaboliteformed isolated and feactionate with wtil asetat and n-butanol, then antibiosis activ-ity tested againts Sclerotium rolfsii Sacc, caused foot rot in pepper plant and pep-per seeds. The results of experiment showed fractinated compound n-butanol indi-cated antimicrobial activity againts S. rolfsii.
UJI KEEFEKTIFAN BEBERAPA BENTUK PERANGKAP TERHADAP HAMA LALAT BUAH PADA TANAMAN JAMBU BIJI (Psidium guajava L) Sutikno, Agus; Salbiah, Desita; Ningsi, Sulystia
PEST Tropical Journal Vol 1, No 2 (2013)
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Fruit flies are major plant pest in guava. Research aimed at knowing theeffectiveness some trap types forward fruit flies pest at guava plant (Psidiumguajava L). Research is implemented by using a randomized block design (RBD)with 4 treatments and 16 groups, in order to obtain 64 units of the experiment. Thetreatment is on trial is this: a ball, a cube, a card, a cylinderl. The data analysisstatistically to a diverse and tested the real difference to the smallest (bnt).Parameter observed is, identification of the fruit flies trapped, the fruit fliestrapped, sum of fruit flies male, sum of fruit flies female and sex ratio fruit flies.The results show the fruit flies trapped in a furious ball 79,25 flies, which isobtained fruit flies trapped by using a cylinder that 78,25 flies.Keywords: Fruit flies, trap types, ball, cube, cards, a cylinder, Psidiumguajava L.
KEEFEKTIFAN EKSTRAK TEMBAKAU PUNTUNG ROKOK LINGTING DAN BERBAGAI JENIS PEREKAT PADA BEBERAPA HARI UNTUK MENGENDALIKAN APHIS CRACCIVORA KOCH PADA TANAMAN KACANG PANJANG (Vigna sinensis L.) Sutikno, Agus; Salbiah, Desita; Purba, Trikorini
PEST Tropical Journal Vol 1, No 2 (2013)
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Aphis craccivora Koch is a major pest in long beans. One of the alternative control can beused to minimize the application of chemical pesticides. One of to control pest of cropcan use tobacco extract. The research was conducted at the Plant Pests Laboratory,Faculty of Agriculture, University of Riau from March 2013 until May 2013. Theexperiment consist of two factors with three treatment and four replicated. The first factoris cigarette butts with a sticker: L1 = Rolled 1g/l of water, L2 = Rolled 1g/l of water andlerak, L3 = Rolled 1g/l of water and cream soap. The second factor is infestation days: H1= First day, H2 = Second day, H3 = Third day. The data is analyzed by using the Analysisof Variance (ANOVA) and Duncan’s New Multiple Range Test (DNMRT) at level 5%.The results showed that the better treatment is extract of tobacco cigarette roll butts 1 g/lof water and cream soap with the first day of the application because capable causingtotal mortality of 85%.Keywords: Aphis craccivora Koch, Long Beans (Vigna sinensis L), TobaccoExtract.
UJI DAYA TAHAN BEBERAPA BAHAN PEMBUNGKUS DALAM MENGENDALIKAN LALAT BUAH (Bactrocera spp.) PADA TANAMAN JAMBU BIJI (Psidium guajava L.) DI SENTRA PENGEMBANGAN PERTANIAN UNIVERSITAS RIAU Candra, Dani; Sutikno, Agus; Salbiah, Desita
PEST Tropical Journal Vol 1, No 2 (2013)
Publisher : PEST Tropical Journal

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Fruit fly (Diptera : Tephritidae) are a major pest of guava plants which cansiderably lowers the production of fruits, both in guantity and guality. This studyaims to determine the durability of some packaging materials that are used tocontrol fruit flies in guava plants. This research was conducted at the Center forAgricultural Development and the University of Riau and Laboratory Plant PestFaculty Agricultural, from April to June 2013. This research was carried out byusing a randomized block design (RBD) with 5 treatments and 4 replication thenewsprint, black carbon paper, black plastic bags, cement paper, transparentplastic. The results of the study showed that the use of packaging materials thathold and effectively protect the guava fruit from treated paper material is cementweighing 151.450 g fruit, and fruit morphology yellowish green color, soft textureshape of a round and 51 days durability.Keyword: Guava (Psidium guajava L.), fruit fly (Bactrocera spp.), andpacking material

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