Populasi Wereng Batang Cokelat dan Tiga Famili Predator pada Varietas Padi Cisadane, Mentik Wangi, dan Pandan Wangi Cianjur di Kecamatan Gamping Yogyakarta

DESTYANI ASTUTI S, Prof. Ir. Y. Andi Trisyono, M.Sc., Ph.D.

2023 | Skripsi | S1 PROTEKSI TANAMAN

Penelitian ini bertujuan untuk mengetahui populasi wereng batang cokelat, Nilapavarta lugens dan tiga famili utamanya pada tiga varietas padi di Kecamatan Gamping, Yogyakarta. Penelitian ini menggunakan rancangan acak kelompok lengkap (RAKL) dengan tiga perlakuan dan tiga ulangan, dilakukan pada Bulan Agustus sampai November 2022. Varietas yang digunakan yaitu Cisadane, Mentik Wangi, dan Pandan Wangi Cianjur. Parameter yang diamati yaitu populasi N. lugens dan tiga predator utamanya per rumpun. Pengamatan dimulai saat tanaman berumur 14 hari dengan interval pengamatan satu minggu sekali. Selama penelitian dilakukan populasi N. lugens sangat rendah dan populasi tertinggi ditemukan pada varietas Cisadane dengan rerata 0,05 ekor N. lugens per rumpun pada saat tanaman berumur 21 hari. Predator utama yang diamati adalah Pardosa pseudoannulata (Lycosidae), Paederus fuscipes (Staphylinidae), dan Harmonia octomaculata (Coccinellidae). Populasi Lycosidae, Staphylinidae, dan Coccinellidae sepanjang pengamatan relatif sama berkisar antara 0,1 sd 0,2 ekor per rumpun untuk masing-masing predator. Perbedaan ketiga varietas yang diuji terhadap N. lugens tidak nampak karena populasi N. lugens sangat rendah.

The objective of this research was to determine the population of Nilapavarta lugens and its three main predators in three rice varieties in Gamping Sub-District, Yogyakarta. This study used a randomized complete block design (RCBD) with three rice varieties (Cisadane, Mentik Wangi, and Pandan Wangi Cianjur) as treatments and three replications, conducted from August to November 2022. Parameters observed were the population of N. lugens, its three main predators per rice hill. Observations were made at 14 days after transpalanting and countined with a weekly interval. The populations of N. lugens was very low during the whole season and the highest population was found at 0.05 per rice hill at 21 days old in Cisadane. The three predators Pardosa pseudoannulata (Lycosidae), Paederus fuscipes (Staphylinidae), and Harmonia octomaculata (Coccinellidae) were consistently more abundant than the population of N. lugens with the population ranging from 0.1 to 0.2 individuals per rice hills for each predator. The difference between the three varieties tested against N. lugens was not apparent because the population of N. lugens was very low.

Kata Kunci : Rice Varieties, Nilaparvata lugens, Predators