ABSTRACT
SANTI FIORA SINAGA, 2015. “The preferences test of Brown Planthopper (Nilaparvata lugens Stal.)on Irrigated paddy field, Nonirrigated paddy field and Sedges (Cyperus rotundus L.) at Screenhouse.” Supervised by Marheni and Mukhtar Iskandar Pinem. The objectives of this research was study the preference of feeding activity of brown planthopper (N. lugens) on irrigated paddy field, nonirrigated paddy field and sedges (C. rotundus) in field. This research was held at screenhouse in Faculty of Agriculture, University of Sumatera Utara fromJuni to August 2015. This research used a non factorial Block Randomized Design method with 3 treatments, namely: Irrigated paddy field, nonirrigated paddy field and sedges with 9 replications. The result showed that the highest population of adults wereon Irrigated paddy field treatment (±6.00) and the lowest (±1.11) was on sedges treatment. The highest population of nymph was on Irrigated paddy field treatment (±25.56) and the lowest on sedgestreatment (±0.00). The highest attact percentage of N. lugens was on treatment Irrigated paddy field treatment(33.65%) and followed by nonirrigated paddy field treatment(8.51%) and the lowest on sedges) treatment (1.17%).
Key words: Preference, N. lugens, irrigated paddy field, nonirrigated paddy field, sedges
ABSTRAK
SANTI FIORA SINAGA, 2016.“Uji Preferensi Wereng Batang Coklat (Nilaparvata lugens Stal.) Pada Tanaman Padi Sawah, Padi Gogo dan Rumput Teki (Cyperus roduntusL.) di Rumah Kasa” di bawah bimbingan Marheni dan Mukhtar Iskandar Pinem. Penelitian ini bertujuan untuk mengetahui preferensi makan hama wereng batang coklat (N. lugens) pada tanaman padi sawah, padi gogo dan rumput teki (C. rotundus) di lapangan. Penelitian ini dilaksanakan di Rumah Kasa Fakultas Pertanian Universitas Sumatera Utara padabulan Juni sampai Agustus 2015. Penelitian ini menggunakan metode Rancangan Acak Kelompok (RAK) non faktorial yang terdiri dari 3 perlakuan, yaitu: Padi Sawah, Padi Gogo dan Rumput Teki dengan 9 ulangan. Hasil penelitian menunjukkan bahwa populasi imago tertinggi pada perlakuan Padi Sawah (±6.00) dan terendah pada perlakuan Rumput Teki (±1.11). Populasi nimfa tertinggi terdapat pada perlakuan Padi Sawah (±25.56) dan terendah pada perlakuan Rumput Teki (±0.00). Kemudian persentase serangan hama N. lugens tertinggi terdapat pada perlakuan Padi Sawah (33.65%) setelah itu diikuti perlakuan Padi Gogo (8.51%) dan terendah pada perlakuan Rumput Teki (1.17%).
Kata Kunci: Preferensi, N. lugens, padi sawah, padi gogo, rumput teki
