Pemberian Dua Jenis Fungisida Terhadap Serangan Curvularia sp. di Pembibitan Kelapa Sawit PT Buluh Cawang Plantation, Sumatera Selatan

Abstract

ARIE ANANTA TARIGAN. Pemberian Dua Jenis Fungisida Terhadap Serangan Curvularia sp. di Pembibitan Kelapa Sawit PT Buluh Cawang Plantation, Sumatera Selatan (The Effect of Two Types of Fungicides on Attacks of Curvularia sp. at the PT Buluh Cawang Plantation Oil Palm Nursery, South Sumatra). Dibimbing oleh EDI WIRAGUNA. Penyakit bercak daun (Curvularia sp.) merupakan patogen bagi tanaman kelapa sawit di Indonesia yang biasanya ditemukan pada bagian daun bibit kelapa sawit. Tanaman yang terinfeksi biasanya mengalami pertumbuhan terhambat, daun menguning, bahkan mati karena infeksi yang parah. Penelitian ini bertujuan untuk mengetahui penyakit utama yang ada di pembibitan kelapa sawit serta memperoleh informasi teknik pengendaliannya. Pengamatan difokuskan pada pertumbuhan vegetatif tanaman seperti tinggi, jumlah helai daun, dan diameter batang. Parameter tersebut diukur pada bibit umur 24 sampai 32 Minggu Setelah Tanam (MST). Penelitian ini dilakukan dengan pengumpulan data yang melibatkan satu faktor, terdiri dari dua tingkat perlakuan dan diulang sebanyak lima kali. Perlakuan tersebut meliputi fungisida dengan bahan aktif Azoxystrobin 120 + Tebuconazole 200 SC dan Propineb 70%. Masing-masing perlakuan ditambahkan dengan pupuk daun (N 11%, P 8%, K 6%). Perlakuan Propineb 70% (Dosis 4 g/l air + 2 ml pupuk daun) terbukti mampu mengoptimalkan pertumbuhan dan mengurangi intensitas serangan pada bibit.

ARIE ANANTA TARIGAN. Awarding of Two Types of Fungicides on Attacks of Curvularia sp. at the PT Buluh Cawang Plantation Oil Palm Nursery, South Sumatra. Supervised by EDI WIRAGUNA. Leaf spot disease (Curvularia sp.) is a pathogen for oil palm plants in Indonesia which is usually found on the leaves of oil palm seedlings. Infected plants usually experience stunted growth, yellow leaves, and even die due to severe infection. This research aims to determine the main diseases in oil palm nurseries and obtain information on control techniques. Observations focused on plant vegetative growth such as height, number of leaves, and stem diameter. These parameters were measured on seedlings aged 24 to 32 weeks after planting (WAP). This research was carried out by collecting data involving one factor, consisting of two levels of treatment and repeated five times. This treatment includes a fungicide with the active ingredients Azoxystrobin 120 + Tebuconazole 200 SC and Propineb 70%. Each treatment was added with foliar fertilizer (N 11%, P 8%, K 6%). Propineb 70% treatment (dose 4 g/l water + 2 ml foliar fertilizer) was proven to be able to optimize growth and reduce the intensity of attacks on seedlings.