Ruarita Ramadhalina Kawaty
Faculty of Agriculture, University Tridinanti Palembang Jl. Kapten Marzuki No. 2446, Kamboja Palembang

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Kerusakan Pucuk Tebu oleh Scirpophaga nivella (F.) di Pertanaman Tebu Lahan Kering, PTPN VII Cinta Manis Meidalima, Dewi; Kawaty, Ruarita Ramadhalina
Jurnal Lahan Suboptimal Vol 3, No 2 (2014)
Publisher : Jurnal Lahan Suboptimal

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Abstract

The biggest obstacle sugarcane in Indonesia, including in South Sumatra and centers Cinta Manis sugar cane plantations that attack shoot borer (Scirpophaga nivella (F.). The study was conducted from July to December 2012 in PTPN VII Cinta Manis South Sumatera. One ha land observation area. Observation plots were divided into 5 plot diagonally into 5 plots each measuring 200 m2 with a population of approximately 1500 sugarcane stalks, performed every 2 weeks old plants of 1.5 months to 6.5 months. The research purposes were observing damage of sugarcane shoots by shoot borer (Scirpophaga nivella). Experimental research methods, data were collected purposively and directly at the affected plants. Hoist length formed by shoot borers from leaves to growing points was the 18.47 cm. Place of imago out mostly on the 3rd and 4th segment. Length of drilled stem was 8.20 cm. Damage caused by shoot borer could made totally dead or made siwilan on sugarcane.
RESPON PERTUMBUHAN DAN HASIL TANAMAN JAGUNG MANIS (Zea mays saccharata Sturt.) AKIBAT PEMBERIAN BERBAGAI DOSIS PUPUK ORGANIK CAIR Kawaty, Ruarita Ramadhalina; Hanan, Ridwan; W.A, Ahmad
JURNAL TRIAGRO Vol 2, No 1 (2017): Jurnal TriAgro
Publisher : UNIVERSITAS TRIDINANTI PALEMBANG

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Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pemberian berbagai dosis pupuk organik cair terhadap pertumbuhan dan produksi tanaman jagung manis (Zea mays saccharata Strurt.) Penelitian ini dilaksanakan di Sukawinatan, Kelurahan Kemuning, Palembang pada bulan Desember 2012 sampai dengan bulan Maret 2013. Rancangan penelitian yang digunakan adalah metode percobaan dengan Rancangan Acak Kelompok (RAK) non faktorial, dengan 4 (empat) perlakuan yaitu P0 = Kontrol, P1 = 20 cc POC 20 l‾ ᶪ air, P2= 40 cc POC 20 l‾ ᶪ air, P3 = 60 cc POC 20 l‾ ᶪ air. Perlakuan tersebut diulang sebanyak 6 (enam) kali sehingga terdapat 24 satuan percobaan. Peubah yang diamati yaitu : Tinggi Tanaman (cm), Jumlah Daun (helai), Umur Berbunga (hari), Panjang Tongkol (cm), Diameter Tongkol (cm), Bobot Tongkol Segar per Tanaman (g), Hasil per Petak Panen (kg). Bedasarkan hasil penelitian menunjukkan bahwa,  pemberian dosis pupuk organik cair dengan dosis P3 (60 cc POC 20 l‾ ᶪ air) dapat menghasilkan tinggi tanaman rata-rata  sebesar 135.08 cm,  jumlah daun rata-rata sebanyak 10.13 helai, umur berbunga rata-rata 45.5 hari, diameter tongkol rata-rata 4.30 cm, panjang tongkol rata-rata 15.35 cm, berat per tanaman rata-rata 214.17 g dan hasil per petak panen rata-rata 3.38 kg.Kata Kunci : Jagung Manis, Pupuk Organik Cair (POC)
Eksplorasi dan Pengamatan Intensitas Serangan Hama Penting Tanaman Tebu di PTPN VII, Cinta Manis Sumatera Selatan Meidalima, Dewi; Kawaty, Ruarita Ramadhalina
Biosaintifika: Journal of Biology & Biology Education Vol 7, No 1 (2015): March 2015
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

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Abstract

Penelitian bertujunan mengamati serangga-serangga hama penting yang menyerang tanaman tebu di PTPN VII, Cinta Manis Sumatera Selatan, dilakukan dari bulan Februari sampai September 2012. Metode survei langsung ke pertanaman dengan mengikuti jadual early warning system (EWS) PTPN VII. Hasil penelitian menemukan serangga hama penting tanaman tebu ialah penggerek batang bergaris (Chilo saccharipaghus), penggerek batang berkilat (Chilo auricilius), dan penggerek pucuk (Scirpophaga nivella). Gejala serangan penggerek batang dan pucuk tebu ditemukanpada umur 2 bulan, serangan tinggi pada umur 3-5 bulan, hal ini berkaitan dengan cuaca. Pada saat penelitian dilakukan serangan tertinggi terjadi pada bulan Mei sampai Juli, dengan suhu, curah hujan, jumlah hari hujan, dan kelembaban nisbi berturut-turut adalah 26,6OC, 245,5 mm, 17 hari dan 98%. Serangan pada tanaman muda, menyebabkan kematian. Pada tanaman yang sudah membentuk ruas, gejala penggerek batang jelas terlihat dari luar jika daun tebu diklentek. Gejala serangan penggerek pucuk terlihat pada helai daun yang berlubang.Intensitas serangan penggerek batang tertinggi pada umur tebu 3 bulan (6,69%), sedangkan intensitas serangan (2,97%) dan populasi penggerek pucuk (44,60 larva) tertinggi pada umur 3,5 bulan.The research aimed to observe the important pest insects attacking sugarcane in PTPN VII, Cinta Manis,South Sumatra. Direct Survey methodto the crop by following the schedule ofearly warning system (EWS) of PTPN VII, conducted from February to September 2012. The results found that important insect pests attacking sugarcane werestriped stem borer (Chilo saccharipaghus), shiny stem borer (Chilo auricilius), and shoot borers (Scirpophaga nivella). Symptoms attack of shotand stemborer of sugarcane were found at 2 months of sugarcane age, high attack at the age of 3-5 months, it is highly related to weather.The highest attack occurred in May and July, with the temperature, precipitation, number of rainy days, and the relative humidity in were 26.6 oC, 245.5 mm, 17 days and 98% respectively. Attack on young plants, causing death. In plants that were already established segments, stem borer symptoms clearly visible from the outside ifsugarcane leaves were diklentek. Shoot borers attack symptoms seen in the perforated leaves. The highest intensity attackof stem borer was at 3 months of sugarcane age (6.69%), while the attack intensity (2.97%) and the highestpopulation of shoot borer(44.60 larvae) were at3.5 months of sugarcane age.
The Diversity of Arthropods Predator on Wild Plant of Rice Field with and without Pesticides Meidalima, Dewi; Kawaty, Ruarita Ramadhalina; Gunawan, Erlan B.
Biosaintifika: Journal of Biology & Biology Education Vol 9, No 1 (2017): April 2017
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

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Abstract

Contaminated- agro ecosystem influences abundance and diversity of arthropods. The aims of this study were to analyze the diversity and abundance of pre-planting arthropod predators on wild plants in rice field with and without application of pesticides. The survey and direct observation of wild plants at the rice filed were conducted from January to March 2015, at 1 ha in Pemulutan and 1 ha in Musi 2 Palembang. Sampling of arthropod predator was conducted 8 times before the rice was grown, using insect nets. On the land without pesticide application was found 14 arthropod families which consists of 28 species and 15 families of wild plant consists of 25 species. On the land with pesticide application was found 8 arthropod families consists of 16 species and 15 wild plant families with 23 species. On the land without pesticide application was found High index of diversity (H=3.121) and low dominance (D=0.095), while on the land with pesticide application low index of diversity (H=2.602) and high dominance (D=0.171). It is the indicators of arthropods predator more varieties at the land without pesticide application compare to the land with pesticide application. This finding is very important for biological pest management in South Sumatra.
DIVERSITY OF ARTHROPOD PREDATOR IN SWAMP RICE FIELDS IN SOUTH SUMATERA Meidalima, Dewi; Kawaty, Ruarita Ramadhalina; B. Gunawan, Erlan
JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA Vol 18, No 2 (2018): SEPTEMBER, JURNAL HAMA DAN PENYAKIT TUMBUHAN TROPIKA
Publisher : Universitas Lampung

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Abstract

The abundance and diversity of arthropod in agro ecosystem depend on the level of synthetic pesticide contamination.  This study aimed to explore, identify and analyze the diversity and abundance of predatory arthropods in swamp rice fields treated with pesticide application (in Pemulutan) and without pesticide application (in Musi 2). The swamp rice fields in Pemulutan are bordered by village, river and forest. The methods were survey and direct observation on 3 ha and 2 ha of swamp rice fields in Pemulutan and Musi 2, Palembang. Sampling of predatory arthropods were conducted at 20, 50, 80 and 110 days after rice planting using pitfall trap.  Identification of  predatory arthropods  was conducted at Laboratory of Entomology showing that the arthropod collected consisted of 17 species of insects and 9 species of Arachnida. In Pemulutan Ogan Ilir were found 19 species (10 species of insect and 9 species of Arachnida) at the village area. In the area that was bordered by river were found 8 species (7 insect and 1 Arachnida). In the area bordered by forest were found 22 species (10 species of insects and 12 species of Arachnida). The diversity level, number of species, and arthropod specimen in the field without pesticide application at Musi 2 were higher than those in the fields with pesticide application in Pemulutan.