Reflinaldon Reflinaldon
Department Plant Pests & Diseases, Faculty of Agriculture, Andalas University, West Sumatera, Indonesia

Published : 4 Documents

Found 4 Documents

Reproduksi Hemiptarsenus varicornis (Hymenoptera: Eulophidae) : pengaruh ketinggian tempat, suhu dan tanaman inang terhadap keperidian Reflinaldon, Reflinaldon; Mardinus, Mardinus; Apriyanto, Dwinardi
Jurnal Entomologi Indonesia Vol 4, No 1 (2007): April
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.4.1.26


H. varicornis is a larval parasitoid of leafminer distributing and associating with several host plants in highland vegetables planting. Three experiments were conducted to study effects of elevations, temperatures and host plants on female reproduction fitness. The first experiment, we compared fitness traits of female originated from different elevation areas i.e Pandai Sikek (900-1000 m above sea level ), Alahan Panjang(1200-1300m) and Kayu Aro (1400-1500m) whilst two other experiments were treatment of temperatures level (18, 23, 280C), and host plants (red bean, bean and cucumber) to investigate longevity, egg layed, survivorship. Parasitoids originated from Kayu Aro showed the highest longevity and number of eggs. The best fitness also was performed when adult female maintained at 230C. Parasitism, superparasitism and paralization of the parasitoid have been discussed in this paper.
TANTANGAN PENGEMBANGAN PADI DIKABUPATEN KEPULAUAN MENTAWAI Azhari, Rafnel; Rusman, Bujang; Kasim, Musliar; Syarif, Auzar; Reflinaldon, Reflinaldon; Yasin, Syafrimen; Zainal, Afrizal; Junaidi, Junaidi
Publisher : Prodi Agribisnis Jurusan Sosial Ekonomi Pertanian Fakultas Pertanian Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jagrisep.16.1.41-56


This study aims to identify the problems and develop rice agribusiness in Mentawai Islands from upstream to downstream and formulate appropriate policy recommendations to be implemented. The research location determined by purposive namely in the village Makalo and Malakopa District of South Pagai, Sikakap subdistrict Taikako Village, Village Saumanganya District of North Pagai, Bosua Village and Village Beriulou District of South Sipora, Village Rogdog and Madobag District of South Siberut. Respondents in this study were 30 farmers. Respondents farmers selected by simple random sampling method. The results showed that the majority of rice paddies new openings in six districts consist of peatlands with a depth varying from 0.4- > 2.0 meter, fields new openings that have been implemented in the Mentawai Islands in general can not be expected to result in maximum productivity due to problems of land suitability diverse. Farmers also do not take action appropriate technical culture starting from land preparation, seed selection, weeding, fertilizing and water management. Behaviorally agriculture, farmers in Mentawai Islands is not a society that blends with the culture of rice fields, it is because basically their agricultural base is dry land agriculture with farming patterns. This will certainly give a great challenge and not easy for the cultivation of rice in the Mentawai Islands.Keywords:challenge,rice agribusiness, cultivation of rice
Patogenisitas Cendawan Entomopatogen dari Rizosfir Kacang Tanah (Arachis hypogaea Linnaeus) terhadap Hama Penggerek Polong Etiella zinckenella Treitschke (Lepidoptera: Pyralidae) Reflinaldon, Reflinaldon; Martinius, Martinius
Publisher : Jurusan Hama dan Penyakit Tumbuhan Faperta Unand

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.1.2.80-89.2017


The objective of this study was to get entomopathogenic fungi isolates of bean plant rhizosphere derived from Nagari Sawah Tangah, District Pariangan, Tanah Datar Regency and to determine their pathogenicity on pod borer E. zinckenella. Isolation method was performed by diluting the soil samples in a serial dilution into 10-3 and cultured in PDA media. Furthermore, the purification was based on the shape and color of the fungus colonies. A total of 16 isolates obtained at the initial stage were selected by testing them against the fifth instar larvae Tenebrio molitor. Results showed that only 4 isolates (STA 1, STA 2.2, STA 5, and STB 3.1) could be further tested against E. zinckenella pod borer using completely randomized design (CRD). The highest pathogenicity isolates was exhibited by STA 1 belonged to Metarhizium genera.
Pengaruh Waktu Aplikasi Paecilomyces spp. terhadap Penekanan Nematoda Bengkak Akar (Meloidogyne spp.) pada Tanaman Tomat (Lycopersicum esculentum Mill.) Winarto, Winarto; Reflinaldon, Reflinaldon
Publisher : Jurusan Hama dan Penyakit Tumbuhan Faperta Unand

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jpt.1.2.90-96.2017


The application time of Paecilomyces spp. was assumed affecting its ability to suppress the root knot nematode (Meloidogyne spp.). This study aimed to get the effective application time to suppress Meloidogyne spp. The study was carried out at greenhouse and Biological Control Laboratory of Faculty of Agriculture, University of Andalas from March to June 2015. The research method used was compeletely random design (CRD) with 5 treatments and 4 replications. The application times consisted of 14 days before planting, 7 days before planting, at planting time, 7 days after planting, 14 days after planting and control. Application time of Paecilomyces spp. on 7 days before planting was the best time to reduce the number of root knot, the group of nematode eggs, nematode eggs and nematode larvae in the soil.