Intensitas Serangan Beberapa Varietas Tanaman Ubi Jalar Terhadap Serangan Cylas formicarius Di Laboratorium

Abstract

Alan Pratama Simangunsong. 2025: ” Intenstas Serangan Beberapa Varietas Tanaman Ubi Jalar Terhadap Serangan Cylas formicarius di Laboratorium” (di bawah bimbingan Prof. Dr. Ir. Darma Bakti MS sebagai komisi pembimbing). Ubi jalar (Ipomoea batatas L) merupakan salah satu tanaman pangan alternatif yang berperan penting dalam perekonomian Masyarakat Indonesia karena mengandung karbohidrat, vitamin dan mineral. Namun, produksi ubi jalar mengalami penurunan tiap tahunnya, salah satunya disebabkan oleh serangan hama boleng (Cylus formicarius) yang dapat menyebabkan kehilangan hasil hingga 90 %. Penelitian ini bertujuan untuk mengukur ketahanan enam varietas ubi jalar (ungu bit, Jepang, Taiwan, cilembu, bolu terhadap serangan hama boleng. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan tiga ulangan. Parameter yang diamati meluputi populasi larva, pupa, imago, persentase kehilangan berat dan intensitas serangan. Hasil menunjukkan varietas Jepang memiliki populasi imago tertinggi (4,71), sedangkan varietas wortel mengalami kehilangan berat tertinggi (5,44%) dan intensitas serangan tertinggi bersama varietas Taiwan (50%). Varietas Cilembu menunjukkan ketahanan paling tinggi terhadap serangan hama.

Kata Kunci : Ubi Jalar, Varietas, Cylas formicarius, Ketahanan.

Alan Pratama Simangunsong. 2025:” Intensity of Attack of Several Sweet Potato Plant Varieties to Cylas formicarius Attacks in the Laboratory” (Supervised by Prof. Dr. Ir. Darma Bakti MS) Sweet potato (Ipomoea batatas L) is an alternative food crop that plays an important role in the Indonesian economy because it contains carbohydrates, vitamins, and minerals. However, sweet potato production has decreased every year, one of the causes being the attack of boleng pests (Cylus formicarius) which can cause yield losses of up to 90%. This study aims to measure the resistance of six sweet potato varieties (purple beet, Japanese, Taiwanese, Cilembu, Bolu) to boleng pest attacks. This study used a Completely Randomized Design (CRD) with three replications. The parameters observed included the population of larvae, pupae, imago, percentage of weight loss, and attack intensity. The results showed that the Japanese variety had the highest imago population (4.71), while the carrot variety experienced the highest weight loss (5.44%) and the highest attack intensity along with the Taiwanese variety (50%). The Cilembu variety showed the highest resistance to pest attacks.

Keywords : Sweet potato, Varieties, Cylas formicarius, Resistance