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KINERJA DAN PERBANYAKAN PARASITOID Tetrastichus brontispae PADA HAMA DAUN KELAPA : Brontispa longissima GESTRO (COLEOPTERA : CHRYSOMELIDAE) DI KABUPATEN ENDE-FLORES Sri Wahyuni
AGRICA Vol. 3 No. 1 (2010): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v3i1.491

Abstract

Brontispa longissima Gestro (Coleoptera: Chrysomelidae) is one of the important pests that attack the palm plants in Southeast Asia. There is a reported decline in the productivity of palm plants when the pest attack reaches 30-40% with 5% of the plants attacked dying. B. longissima pest attacks plants at all stages of life, but its attack is most prevalent when plants reach the age of 4-5 years. The spread of pest B. longissima has ben reported in the district of Ende, Nangakeo and Ndona in 13 villages with a total area of the severe intensity of attacks. There have been attempted control measures with the release of natural enemies Tetratichus brontispae but not much success has be seen. This study aimed to find out: The dominant type of parasite in the district of Ende. T. brontispae were propagated and maintained in the laboratory using augmentation techniques, conservation or disposal was to be done. Colonies of the propagated parasite T. brontispae were then released in the field. The factors causing T. brontispae control failure, the population of B. longissima in the field, possibly the need for augmentation or conservation of T. brontispae and the right time to make the release of the parasite in the field was important. This research is expected to be useful as a basis in formulating and appropriate control program, in order to control the pest B. longissima in the field. The experiment was conducted from January to June 2010 at Nangakeo, Ndona and Ende district. Implementation of the research was divided into four stages: location survey, maintenance and multiplication of the pests B. longissima and T. brontispae parasite, parasite release and the evaluation of the result. The result was; that there are three types of parasites, B. longissima coconut leaf pest in Ende (sub Ndona, Nangakeo and Ende) the eggs of the parasite Trichogrammatoideanana spp., the larvae and pupae of the parasite Trichogrammatoideanana spp. and the ‘Asecodeshispinarum Boucek’. T. brontispae parasite being the most dominant parasite in each district with 10% level of larvae and pupae of 60-90%, biased sex male : vemale ratio. The pest capability of T. brontispae parasite in the laboratory was 6: 10 with a success rate of 90 %. The decline in the influence of parasite performance was unsynchronized between phases from the phase of the insect host-parasite in the field, the availability of insect host and time of release as well as climatic conditions not being conductive.
PENGARUH LAMA PERENDAMAN EKSTRAK KULIT BATANG “KAJU BA’I” (Aglaia tomentosa) TERHADAP EFEKTIVITAS INSEKTISIDA NABATI PADA HAMA GUDANG KACANG HIJAU Callosobruschus sp (COLEOPTERA : BRUCHIDAE) Mardiah Sarah; Sri Wahyuni; Willybrordus Lanamana
AGRICA Vol. 3 No. 1 (2010): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v3i1.493

Abstract

This study aims to the influence of soaking bark extract “Kaju Ba’i” (Aglaia tomentose) and its effectiveness as a botanical insecticide of the green beans warehouse pest Callosobruschus app. The experiment was conducted at the Laboratory in the Faculty of Agriculture University of Flores, Ende, from September to October 2010. The research used a completely randomized design with 5 treatments of K0 (control), K1 (bark extract Kaju Ba’i immersed for one day), K2 (bark extract Kaju Ba’i immersed for two days), K3 (bark extract Kaju Ba’i immersed three two days), K4 (bark extract Kaju Ba’i immersed for four days) each treatment was repeated 10 times. Observed variables included mortality, contact nerve toxins and anti-oviposition activity. The results showed that the treatment K4 possesses the highest level of effectiveness, and cause mortality as contact poison (99%), nerve toxins (2.7%) and anti-oviposition (75%).
RESPON BIOLOGIS BEBERAPA JENIS PARASITOID PADA LALAT PENGGOROK DAUN Liriomyza huidobrensis BLANCHARD Sri Wahyuni; I Wayan Supartha
AGRICA Vol. 2 No. 1 (2009): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v2i1.543

Abstract

This research conducted to know the biological responses of leaf miner parasitoid Liriomyza huidobrensis is Hemyptarsenus varicomis Girault (Eulophidae), Opius sp (Braconidae) and Gronotoma micromorpha (Eucoilidae). Three species of parasitoid chosen as the substance of research caused by biological agent superiorities. On this research, there are some observed that is long life imagoes, preoviposition, oviposition period, after oviposition, The egg-laying rate, fertilization, daily fertilization, mortality and female proportion. This research was conducted for four-month at Ecology Laboratory and Insect Systematics and at the Green House of Pest and Plant Diseases Department, Faculty of Agriculture Udayana University in Denpasar. Used substance of host kidney bean (Vigna sinensis L ) host insect ( L. Huidobrensis ) and species of the parasitoid (H.varicornis, Opius sp and G.micromorpha) The experiments using randomized complete block design was used in this research. The observed results indicated that betwen three species of parasitoid used H.varicornis has preoviposition period and time after oviposition shortest so that to reproduce generation of H.varicornis faster than G.micromopha and Opius sp. At the meantime the fertilization level, and best female proportion produced of H.varicornis. Mortality on G.micromorpha and O.liriomyzae cause of paralyzing and host- feeding by H.varicornis. Mortality on G.micromorpha and Opius sp influential to female proportion number that produced that is the mortality of female generation caused of paralyzing and host-feeding by H. varicornis, So that fertilizing level, parasitisation level and female proportion higher happen if G.micromorpha or Opius sp released after releasing H. varicornis
Populasi Dan Intensitas Serangan Pelopidas mathias (Lepidoptera: Hespiridae) Pada Tanaman Padi Sawah (Oriyza sativa L) Di Kecamatan Poco Ranaka Kabupaten Manggarai Timur Yustina Meling; Sri Wahyuni
AGRICA Vol. 13 No. 2 (2020): December
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v13i2.754

Abstract

UJI ATRAKTAN EKSTRAK KULIT BUAH KAKAO TERHADAP HAMA HELOPELTIS SP (HEMIPTERA : MIRIDAE) PADA KAKAO (Theobroma cacao L). Sri Wahyuni; Lusia Fransiska Bhoko
AGRICA Vol. 14 No. 1 (2021): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v14i1.1038

Abstract

This study aims to determine the population, intensity of attack, Helopeltis spp and population relationship with damage to cocoa plants due to Helopeltis spp attack. This research was conducted in one location, namely in Embu Ndoa Village, Ende District, Ende Regency, with the condition that those who have not done P3S have yet. This study was conducted from January to March 2020. The variables observed were population and intensity of attack by Helopeltis spp. The results showed that the population of Helopeltis spp on cocoa plants at P1, P2, P3, respectively were 57, 24, 16 individuals/plant. The highest population of Helopeltis spp on cocoa was 57 individuals. The intensity of attack by Helopeltis spp was the highest at P1 was 54% with the highest R value of 0.2%.
ETNOBOTANI TANAMAN OBAT DI KECAMATAN NANGAPANDA KABUPATEN ENDE NUSA TENGGARA TIMUR Maria Tensiana Tima; Sri Wahyuni; Murdaningsih Murdaningsih
Journal Penelitian Kehutanan FALOAK Vol 4, No 1 (2020): Jurnal Penelitian Kehutanan Faloak
Publisher : Balai Penelitian Dan Pengembangan Teknologi Hasil Hutan Bukan Kayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1027.11 KB) | DOI: 10.20886/jpkf.2020.4.1.23-38

Abstract

Penelitian ini bertujuan untuk memperoleh informasi tentang pengetahuan masyarakat dan jenis tanaman obat yang digunakan oleh masyarakat Kecamatan Nangapanda Kabupaten ende Nusa Tenggara Timur. Penelitian ini dilaksanakan di tiga desa di kecamatan Nagapanda yaitu Desa Ondorea Barat, Timba Zi’a dan Desa Uzu Zozo. Pengumpulan data dilakukan dengan metode wawancara dan penyebaran angket untuk menggali informasi tentang pemanfaatan tanaman obat oleh masyarakat serta tracking yang bertujuan untuk mencocokkan hasil wawancara dan angket dengan keadaan sebenarnya di lapangan. Hasil penelitian menunjukkan terdapat 73%  masyarakat yang menggunakan tanaman obat untuk kegiatan preventif maupun penyembuhan penyakit dan terapat 54 jenis tanaman yang digunakan.
HUBUNGAN KONDISI EKOSISTEM KEBUN KAKAO TERHADAP TINGKAT SERANGAN HAMA HELOPELTIS SP (Hemiptera:Miridae) Sri Wahyuni; Walburga Anita Reri
AGRICA Vol. 15 No. 1 (2022): June
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v15i1.1926

Abstract

This study aims to determine the population, intensity of attack of Helopeltis sp, and the relationship of the cocoa plantation ecosystem to the level of attack of Helopeltis sp. P3S. The study was conducted from May to June 2020. The variables observed were population and intensity of Helopeltis sp attacks as well as temperature, humidity, and natural enemies. The results showed that the population and intensity at the two locations were different. The number of Helopeltis sp in cocoa plantations that did not apply P3S was 49 individuals/tree with attack intensity ranging from 0 - 81.25%, The number of Helopeltis sp in cocoa gardens applying P3S was 6 individuals/tree with attack intensity ranging from 0 - 43.75%. The main factors that play an important role are temperature, humidity, and natural enemies.
Kegiatan Seminar dan Menanam Pohon Menuju Kota Hijau di Kelurahan Danga Kecamatan Aesesa Kabupaten Nagekeo Aurelius Fredimento; Laurentius Dominicus Gadi Djou; Sri Wahyuni
Prima Abdika : Jurnal Pengabdian Masyarakat Vol. 2 No. 3 (2022): Volume 2 Nomor 3 Tahun 2022
Publisher : Program Studi Pendidikan Guru Sekolah Dasar Universitas Flores Ende

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/abdika.v2i3.1948

Abstract

One of the core activities to save the mother earth is by planting trees in barren places. The growth of trees that will become forests.  The forest trees will reduce the impact of global warning, the availability of sufficient oxygen and water for the living creature, absorb the air pollution, adding the environmental nutrients, animal shelter, flood and erosion prevention. Based on the above ideas, the Group of Catholic Student of St. Martinus Ende which well known as KMK (Kelompok Mahasiswa Katolik) in collaboration with the Danga residents, in Nagekeo District planting trees around the city of Danga. The goal is to turn Danga as the capital city into a green city. This activity has been running from December 22 to December 29, 2021. This activity is also carried out using two methods. First, holding a one-day seminar to build an understanding of the environment, the benefits of the living environment, and how to care for and maintain the environment. The second is tree planting activities.
ANALISIS VEGETASI GULMA PADA PERLAKUAN OLAH TANAH TANAMAN UBI KAYU NUABOSI Maria Tensiana Tima; Putri Titin Safarni; Sri Wahyuni
Agrica: Journal of Sustainable Dryland Agriculture Vol. 15 No. 2 (2022): December
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v15i2.2309

Abstract

The growing weeds in cassava plants are unwanted because it negatively inhibits growth and reduces tuber production in cassava. This research aims to determine differences in the types and populations of weeds in the treated and fallow soil treatment. This study used the proportion sampling method by calculating the number of weed species found in cassava plantations, separating each weed found according to the plot, identifying the types of weeds obtained, and recording the data in a table of the number and density of weeds. This research shows that the population and types of weeds have different amounts between the treated land treated and the treated fallow land. The highest weed population was found at the treatment of fallow land with clover weed (Trifolium repens) of 1,462. In the tillage treatment, the highest weed population yield was found in the bandotan weed (Ageraum conyzoides) with a total population of 269. Based on observations, cassava plants on processed land had better development compared to cassava development on fallow land treatment.
APLIKASI EKSTRAK Dioscorea hispidia PADA HAMA Pomacea speciosa DI PERTANAMAN PADI SAWAH Virgilius W.S Rovanda Putra; Sri Wahyuni
Agrica: Journal of Sustainable Dryland Agriculture Vol. 15 No. 2 (2022): December
Publisher : Agriculture Faculty of Flores University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37478/agr.v15i2.2458

Abstract

The golden snail is a pest originating from the American continent and entering Asia as a food ingredient. Initially, these animals were used as ornamental animals and joined the rice fields through waterways. Even the golden snail is one of the main pests that attack rice plants. Utilization of gadung tuber is an alternative to controlling golden snails considering the abundant presence of gadung tuber and its toxic cyanide content. This study aims to determine the ability of gadung tuber extract to control golden snail pests, the concentration of gadung tuber extract is the best in controlling golden snail pests. The research method was arranged in a randomized block design, with 4 repetitions and 5 treatments at the yam tuber extract level, namely, G0 (0 g/5 l), G1 (3 g/5 l), G2 (6 g/5 l), G3 ( 9 g/5 l) and G4 (12 g/5 l). The application of gadung tuber extract was carried out 2 times, namely on rice plants aged 7 hst and 18 hst which were given by spraying on each research plot in the morning at 07.00-Wita. The results of the study showed that gadung tuber extract had activity as a contact, stomach, and systemic poison with the best dose being 3 grams/5 liters