Kelimpahan Relatif Artropoda Predator Penghuni Tajuk Tanaman Padi Galur Padi Rakitan Politeknik Negeri Lampung

Abstract

The abundance of predatory arthropods in the rice field ecosystem acts as a biological agent that suppresses pest populations. This study aims to analyze the types of species, individuals, and abundance of predatory arthropods. The research was conducted at the Lampung State Polytechnic Seed Teaching Farm in August-December 2020. The rice plant lines planted by Lampung State Polytechnic were 14 New Type Rice (PTB) lines, namely Pandan Wangi (PW, B1, B2, B3, B4, B7, D2, D3, F3, F4, H1, H4, K, and L2 with 2 and comparable superior varieties namely Ciherang (CH) and Gilirang (Gil)). Rice cultivation is carried out conventionally. Observations of predatory arthropods that inhabit rice canopy were carried out using 3 double swings of insect nets / sweepnets per treatment plot. Insect collection was carried out at 06.00-09.00 WIB then identified in the Food Crops Laboratory II, counting the number of species, number of individuals and relative abundance. The results showed that predatory arthropods that inhabit the canopy of rice plants in several rice plant lines were obtained from the Oxyopidae, Tetragnathidae, Lycosidae, Coenagrionidae, Correidae, Coccinellidae, Chrysomelidae, and Staphylinidae families. The Tetragnathidae and Coenagrionidae families have the highest proportion of species and are found in each rice plant line.

Insect Diversity of Some Hybrid Rice Genotypes in Sleman-Yogyakarta Irrigated Agroecosystem

“…Result showed that spiders from the Tetragnathidae family are more abundant in comparison with spiders from the Oxyopidae and Lycosidae families. This is in line with research [20,21,22] whereas many spiders from the Oxyopidae, Tetragnathidae and Lycosidae families found in the rice plants during the growth period, both vegetative and generative phase. Spiders from the Tetragnathidae family are often found by making a net.…”

Inventarisasi Serangga Hama dan Penyakit pada Berbagai Galur Tanaman Padi

“…Keywords: Pests, Diseases, Rice Lines PENDAHULUAN Padi merupakan komoditi pangan utama yang dibudidayakan hampir sebagian besar petani Indonesia (Siregar et al, 2021) Faktor pembatas peningkatan produksi padi salah satunya adalah tingkat serangan hama dan penyakit yang menyerang varietas padi yang dibudidayakan (Budiarti et al, 2021a;Budiarti et al, 2021b)…”